--- _id: '8674' abstract: - lang: eng text: 'Extrasynaptic actions of glutamate are limited by high-affinity transporters expressed by perisynaptic astroglial processes (PAPs): this helps maintain point-to-point transmission in excitatory circuits. Memory formation in the brain is associated with synaptic remodeling, but how this affects PAPs and therefore extrasynaptic glutamate actions is poorly understood. Here, we used advanced imaging methods, in situ and in vivo, to find that a classical synaptic memory mechanism, long-term potentiation (LTP), triggers withdrawal of PAPs from potentiated synapses. Optical glutamate sensors combined with patch-clamp and 3D molecular localization reveal that LTP induction thus prompts spatial retreat of astroglial glutamate transporters, boosting glutamate spillover and NMDA-receptor-mediated inter-synaptic cross-talk. The LTP-triggered PAP withdrawal involves NKCC1 transporters and the actin-controlling protein cofilin but does not depend on major Ca2+-dependent cascades in astrocytes. We have therefore uncovered a mechanism by which a memory trace at one synapse could alter signal handling by multiple neighboring connections.' acknowledgement: We thank J. Angibaud for organotypic cultures and R. Chereau and J. Tonnesen for help with the STED microscope; also D. Gonzales and the Neurocentre Magendie INSERM U1215 Genotyping Platform, for breeding management and genotyping. This work was supported by the Wellcome Trust Principal Fellowships 101896 and 212251, ERC Advanced Grant 323113, ERC Proof-of-Concept Grant 767372, EC FP7 ITN 606950, and EU CSA 811011 (D.A.R.); NRW-Rückkehrerpogramm, UCL Excellence Fellowship, German Research Foundation (DFG) SPP1757 and SFB1089 (C.H.); Human Frontiers Science Program (C.H., C.J.J., and H.J.); EMBO Long-Term Fellowship (L.B.); Marie Curie FP7 PIRG08-GA-2010-276995 (A.P.), ASTROMODULATION (S.R.); Equipe FRM DEQ 201 303 26519, Conseil Régional d’Aquitaine R12056GG, INSERM (S.H.R.O.); ANR SUPERTri, ANR Castro (ANR-17-CE16-0002), R-13-BSV4-0007-01, Université de Bordeaux, labex BRAIN (S.H.R.O. and U.V.N.); CNRS (A.P., S.H.R.O., and U.V.N.); HFSP, ANR CEXC, and France-BioImaging ANR-10-INSB-04 (U.V.N.); and FP7 MemStick Project No. 201600 (M.G.S.). article_processing_charge: No article_type: original author: - first_name: Christian full_name: Henneberger, Christian last_name: Henneberger - first_name: Lucie full_name: Bard, Lucie last_name: Bard - first_name: Aude full_name: Panatier, Aude last_name: Panatier - first_name: James P. full_name: Reynolds, James P. last_name: Reynolds - first_name: Olga full_name: Kopach, Olga last_name: Kopach - first_name: Nikolay I. full_name: Medvedev, Nikolay I. last_name: Medvedev - first_name: Daniel full_name: Minge, Daniel last_name: Minge - first_name: Michel K. full_name: Herde, Michel K. last_name: Herde - first_name: Stefanie full_name: Anders, Stefanie last_name: Anders - first_name: Igor full_name: Kraev, Igor last_name: Kraev - first_name: Janosch P. full_name: Heller, Janosch P. last_name: Heller - first_name: Sylvain full_name: Rama, Sylvain last_name: Rama - first_name: Kaiyu full_name: Zheng, Kaiyu last_name: Zheng - first_name: Thomas P. full_name: Jensen, Thomas P. last_name: Jensen - first_name: Inmaculada full_name: Sanchez-Romero, Inmaculada id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87 last_name: Sanchez-Romero - first_name: Colin J. full_name: Jackson, Colin J. last_name: Jackson - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Ole Petter full_name: Ottersen, Ole Petter last_name: Ottersen - first_name: Erlend Arnulf full_name: Nagelhus, Erlend Arnulf last_name: Nagelhus - first_name: Stephane H.R. full_name: Oliet, Stephane H.R. last_name: Oliet - first_name: Michael G. full_name: Stewart, Michael G. last_name: Stewart - first_name: U. VAlentin full_name: Nägerl, U. VAlentin last_name: Nägerl - first_name: 'Dmitri A. ' full_name: 'Rusakov, Dmitri A. ' last_name: Rusakov citation: ama: Henneberger C, Bard L, Panatier A, et al. LTP induction boosts glutamate spillover by driving withdrawal of perisynaptic astroglia. Neuron. 2020;108(5):P919-936.E11. doi:10.1016/j.neuron.2020.08.030 apa: Henneberger, C., Bard, L., Panatier, A., Reynolds, J. P., Kopach, O., Medvedev, N. I., … Rusakov, D. A. (2020). LTP induction boosts glutamate spillover by driving withdrawal of perisynaptic astroglia. Neuron. Elsevier. https://doi.org/10.1016/j.neuron.2020.08.030 chicago: Henneberger, Christian, Lucie Bard, Aude Panatier, James P. Reynolds, Olga Kopach, Nikolay I. Medvedev, Daniel Minge, et al. “LTP Induction Boosts Glutamate Spillover by Driving Withdrawal of Perisynaptic Astroglia.” Neuron. Elsevier, 2020. https://doi.org/10.1016/j.neuron.2020.08.030. ieee: C. Henneberger et al., “LTP induction boosts glutamate spillover by driving withdrawal of perisynaptic astroglia,” Neuron, vol. 108, no. 5. Elsevier, p. P919–936.E11, 2020. ista: Henneberger C, Bard L, Panatier A, Reynolds JP, Kopach O, Medvedev NI, Minge D, Herde MK, Anders S, Kraev I, Heller JP, Rama S, Zheng K, Jensen TP, Sanchez-Romero I, Jackson CJ, Janovjak HL, Ottersen OP, Nagelhus EA, Oliet SHR, Stewart MG, Nägerl UVa, Rusakov DA. 2020. LTP induction boosts glutamate spillover by driving withdrawal of perisynaptic astroglia. Neuron. 108(5), P919–936.E11. mla: Henneberger, Christian, et al. “LTP Induction Boosts Glutamate Spillover by Driving Withdrawal of Perisynaptic Astroglia.” Neuron, vol. 108, no. 5, Elsevier, 2020, p. P919–936.E11, doi:10.1016/j.neuron.2020.08.030. short: C. Henneberger, L. Bard, A. Panatier, J.P. Reynolds, O. Kopach, N.I. Medvedev, D. Minge, M.K. Herde, S. Anders, I. Kraev, J.P. Heller, S. Rama, K. Zheng, T.P. Jensen, I. Sanchez-Romero, C.J. Jackson, H.L. Janovjak, O.P. Ottersen, E.A. Nagelhus, S.H.R. Oliet, M.G. Stewart, U.Va. Nägerl, D.A. Rusakov, Neuron 108 (2020) P919–936.E11. date_created: 2020-10-18T22:01:38Z date_published: 2020-12-09T00:00:00Z date_updated: 2023-08-22T09:59:29Z day: '09' ddc: - '570' department: - _id: HaJa doi: 10.1016/j.neuron.2020.08.030 external_id: isi: - '000603428000010' pmid: - '32976770' file: - access_level: open_access checksum: 054562bb50165ef9a1f46631c1c5e36b content_type: application/pdf creator: dernst date_created: 2020-12-10T14:42:09Z date_updated: 2020-12-10T14:42:09Z file_id: '8939' file_name: 2020_Neuron_Henneberger.pdf file_size: 7518960 relation: main_file success: 1 file_date_updated: 2020-12-10T14:42:09Z has_accepted_license: '1' intvolume: ' 108' isi: 1 issue: '5' language: - iso: eng license: https://creativecommons.org/licenses/by/4.0/ month: '12' oa: 1 oa_version: Published Version page: P919-936.E11 pmid: 1 publication: Neuron publication_identifier: eissn: - '10974199' issn: - '08966273' publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: LTP induction boosts glutamate spillover by driving withdrawal of perisynaptic astroglia tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 108 year: '2020' ... --- _id: '6025' abstract: - lang: eng text: Non-canonical Wnt signaling plays a central role for coordinated cell polarization and directed migration in metazoan development. While spatiotemporally restricted activation of non-canonical Wnt-signaling drives cell polarization in epithelial tissues, it remains unclear whether such instructive activity is also critical for directed mesenchymal cell migration. Here, we developed a light-activated version of the non-canonical Wnt receptor Frizzled 7 (Fz7) to analyze how restricted activation of non-canonical Wnt signaling affects directed anterior axial mesendoderm (prechordal plate, ppl) cell migration within the zebrafish gastrula. We found that Fz7 signaling is required for ppl cell protrusion formation and migration and that spatiotemporally restricted ectopic activation is capable of redirecting their migration. Finally, we show that uniform activation of Fz7 signaling in ppl cells fully rescues defective directed cell migration in fz7 mutant embryos. Together, our findings reveal that in contrast to the situation in epithelial cells, non-canonical Wnt signaling functions permissively rather than instructively in directed mesenchymal cell migration during gastrulation. acknowledged_ssus: - _id: Bio - _id: LifeSc article_number: e42093 article_processing_charge: No author: - first_name: Daniel full_name: Capek, Daniel id: 31C42484-F248-11E8-B48F-1D18A9856A87 last_name: Capek orcid: 0000-0001-5199-9940 - first_name: Michael full_name: Smutny, Michael id: 3FE6E4E8-F248-11E8-B48F-1D18A9856A87 last_name: Smutny orcid: 0000-0002-5920-9090 - first_name: Alexandra Madelaine full_name: Tichy, Alexandra Madelaine last_name: Tichy - first_name: Maurizio full_name: Morri, Maurizio id: 4863116E-F248-11E8-B48F-1D18A9856A87 last_name: Morri - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Carl-Philipp J full_name: Heisenberg, Carl-Philipp J id: 39427864-F248-11E8-B48F-1D18A9856A87 last_name: Heisenberg orcid: 0000-0002-0912-4566 citation: ama: Capek D, Smutny M, Tichy AM, Morri M, Janovjak HL, Heisenberg C-PJ. Light-activated Frizzled7 reveals a permissive role of non-canonical wnt signaling in mesendoderm cell migration. eLife. 2019;8. doi:10.7554/eLife.42093 apa: Capek, D., Smutny, M., Tichy, A. M., Morri, M., Janovjak, H. L., & Heisenberg, C.-P. J. (2019). Light-activated Frizzled7 reveals a permissive role of non-canonical wnt signaling in mesendoderm cell migration. ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.42093 chicago: Capek, Daniel, Michael Smutny, Alexandra Madelaine Tichy, Maurizio Morri, Harald L Janovjak, and Carl-Philipp J Heisenberg. “Light-Activated Frizzled7 Reveals a Permissive Role of Non-Canonical Wnt Signaling in Mesendoderm Cell Migration.” ELife. eLife Sciences Publications, 2019. https://doi.org/10.7554/eLife.42093. ieee: D. Capek, M. Smutny, A. M. Tichy, M. Morri, H. L. Janovjak, and C.-P. J. Heisenberg, “Light-activated Frizzled7 reveals a permissive role of non-canonical wnt signaling in mesendoderm cell migration,” eLife, vol. 8. eLife Sciences Publications, 2019. ista: Capek D, Smutny M, Tichy AM, Morri M, Janovjak HL, Heisenberg C-PJ. 2019. Light-activated Frizzled7 reveals a permissive role of non-canonical wnt signaling in mesendoderm cell migration. eLife. 8, e42093. mla: Capek, Daniel, et al. “Light-Activated Frizzled7 Reveals a Permissive Role of Non-Canonical Wnt Signaling in Mesendoderm Cell Migration.” ELife, vol. 8, e42093, eLife Sciences Publications, 2019, doi:10.7554/eLife.42093. short: D. Capek, M. Smutny, A.M. Tichy, M. Morri, H.L. Janovjak, C.-P.J. Heisenberg, ELife 8 (2019). date_created: 2019-02-17T22:59:22Z date_published: 2019-02-06T00:00:00Z date_updated: 2023-08-24T14:46:01Z day: '06' ddc: - '570' department: - _id: CaHe - _id: HaJa doi: 10.7554/eLife.42093 ec_funded: 1 external_id: isi: - '000458025300001' file: - access_level: open_access checksum: 6cb4ca6d4aa96f6f187a5983aa3e660a content_type: application/pdf creator: dernst date_created: 2019-02-18T15:17:21Z date_updated: 2020-07-14T12:47:17Z file_id: '6041' file_name: 2019_elife_Capek.pdf file_size: 5500707 relation: main_file file_date_updated: 2020-07-14T12:47:17Z has_accepted_license: '1' intvolume: ' 8' isi: 1 language: - iso: eng month: '02' oa: 1 oa_version: Published Version project: - _id: 260F1432-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '742573' name: Interaction and feedback between cell mechanics and fate specification in vertebrate gastrulation publication: eLife publication_status: published publisher: eLife Sciences Publications quality_controlled: '1' scopus_import: '1' status: public title: Light-activated Frizzled7 reveals a permissive role of non-canonical wnt signaling in mesendoderm cell migration tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 8 year: '2019' ... --- _id: '6564' abstract: - lang: eng text: Optogenetics enables the spatio-temporally precise control of cell and animal behavior. Many optogenetic tools are driven by light-controlled protein–protein interactions (PPIs) that are repurposed from natural light-sensitive domains (LSDs). Applying light-controlled PPIs to new target proteins is challenging because it is difficult to predict which of the many available LSDs, if any, will yield robust light regulation. As a consequence, fusion protein libraries need to be prepared and tested, but methods and platforms to facilitate this process are currently not available. Here, we developed a genetic engineering strategy and vector library for the rapid generation of light-controlled PPIs. The strategy permits fusing a target protein to multiple LSDs efficiently and in two orientations. The public and expandable library contains 29 vectors with blue, green or red light-responsive LSDs, many of which have been previously applied ex vivo and in vivo. We demonstrate the versatility of the approach and the necessity for sampling LSDs by generating light-activated caspase-9 (casp9) enzymes. Collectively, this work provides a new resource for optical regulation of a broad range of target proteins in cell and developmental biology. article_processing_charge: No article_type: original author: - first_name: Alexandra-Madelaine full_name: Tichy, Alexandra-Madelaine id: 29D8BB2C-F248-11E8-B48F-1D18A9856A87 last_name: Tichy - first_name: Elliot J. full_name: Gerrard, Elliot J. last_name: Gerrard - first_name: Julien M.D. full_name: Legrand, Julien M.D. last_name: Legrand - first_name: Robin M. full_name: Hobbs, Robin M. last_name: Hobbs - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Tichy A-M, Gerrard EJ, Legrand JMD, Hobbs RM, Janovjak HL. Engineering strategy and vector library for the rapid generation of modular light-controlled protein–protein interactions. Journal of Molecular Biology. 2019;431(17):3046-3055. doi:10.1016/j.jmb.2019.05.033 apa: Tichy, A.-M., Gerrard, E. J., Legrand, J. M. D., Hobbs, R. M., & Janovjak, H. L. (2019). Engineering strategy and vector library for the rapid generation of modular light-controlled protein–protein interactions. Journal of Molecular Biology. Elsevier. https://doi.org/10.1016/j.jmb.2019.05.033 chicago: Tichy, Alexandra-Madelaine, Elliot J. Gerrard, Julien M.D. Legrand, Robin M. Hobbs, and Harald L Janovjak. “Engineering Strategy and Vector Library for the Rapid Generation of Modular Light-Controlled Protein–Protein Interactions.” Journal of Molecular Biology. Elsevier, 2019. https://doi.org/10.1016/j.jmb.2019.05.033. ieee: A.-M. Tichy, E. J. Gerrard, J. M. D. Legrand, R. M. Hobbs, and H. L. Janovjak, “Engineering strategy and vector library for the rapid generation of modular light-controlled protein–protein interactions,” Journal of Molecular Biology, vol. 431, no. 17. Elsevier, pp. 3046–3055, 2019. ista: Tichy A-M, Gerrard EJ, Legrand JMD, Hobbs RM, Janovjak HL. 2019. Engineering strategy and vector library for the rapid generation of modular light-controlled protein–protein interactions. Journal of Molecular Biology. 431(17), 3046–3055. mla: Tichy, Alexandra-Madelaine, et al. “Engineering Strategy and Vector Library for the Rapid Generation of Modular Light-Controlled Protein–Protein Interactions.” Journal of Molecular Biology, vol. 431, no. 17, Elsevier, 2019, pp. 3046–55, doi:10.1016/j.jmb.2019.05.033. short: A.-M. Tichy, E.J. Gerrard, J.M.D. Legrand, R.M. Hobbs, H.L. Janovjak, Journal of Molecular Biology 431 (2019) 3046–3055. date_created: 2019-06-16T21:59:14Z date_published: 2019-08-09T00:00:00Z date_updated: 2023-08-28T09:39:22Z day: '09' department: - _id: HaJa doi: 10.1016/j.jmb.2019.05.033 external_id: isi: - '000482872100002' intvolume: ' 431' isi: 1 issue: '17' language: - iso: eng main_file_link: - open_access: '1' url: http://www.biorxiv.org/content/10.1101/583369v1 month: '08' oa: 1 oa_version: Preprint page: 3046-3055 publication: Journal of Molecular Biology publication_identifier: eissn: - '10898638' issn: - '00222836' publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Engineering strategy and vector library for the rapid generation of modular light-controlled protein–protein interactions type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 431 year: '2019' ... --- _id: '7406' abstract: - lang: eng text: "Background\r\nSynaptic vesicles (SVs) are an integral part of the neurotransmission machinery, and isolation of SVs from their host neuron is necessary to reveal their most fundamental biochemical and functional properties in in vitro assays. Isolated SVs from neurons that have been genetically engineered, e.g. to introduce genetically encoded indicators, are not readily available but would permit new insights into SV structure and function. Furthermore, it is unclear if cultured neurons can provide sufficient starting material for SV isolation procedures.\r\n\r\nNew method\r\nHere, we demonstrate an efficient ex vivo procedure to obtain functional SVs from cultured rat cortical neurons after genetic engineering with a lentivirus.\r\n\r\nResults\r\nWe show that ∼108 plated cortical neurons allow isolation of suitable SV amounts for functional analysis and imaging. We found that SVs isolated from cultured neurons have neurotransmitter uptake comparable to that of SVs isolated from intact cortex. Using total internal reflection fluorescence (TIRF) microscopy, we visualized an exogenous SV-targeted marker protein and demonstrated the high efficiency of SV modification.\r\n\r\nComparison with existing methods\r\nObtaining SVs from genetically engineered neurons currently generally requires the availability of transgenic animals, which is constrained by technical (e.g. cost and time) and biological (e.g. developmental defects and lethality) limitations.\r\n\r\nConclusions\r\nThese results demonstrate the modification and isolation of functional SVs using cultured neurons and viral transduction. The ability to readily obtain SVs from genetically engineered neurons will permit linking in situ studies to in vitro experiments in a variety of genetic contexts." acknowledged_ssus: - _id: Bio - _id: EM-Fac article_processing_charge: No article_type: original author: - first_name: Catherine full_name: Mckenzie, Catherine id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87 last_name: Mckenzie - first_name: Miroslava full_name: Spanova, Miroslava id: 44A924DC-F248-11E8-B48F-1D18A9856A87 last_name: Spanova - first_name: Alexander J full_name: Johnson, Alexander J id: 46A62C3A-F248-11E8-B48F-1D18A9856A87 last_name: Johnson orcid: 0000-0002-2739-8843 - first_name: Stephanie full_name: Kainrath, Stephanie id: 32CFBA64-F248-11E8-B48F-1D18A9856A87 last_name: Kainrath - first_name: Vanessa full_name: Zheden, Vanessa id: 39C5A68A-F248-11E8-B48F-1D18A9856A87 last_name: Zheden orcid: 0000-0002-9438-4783 - first_name: Harald H. full_name: Sitte, Harald H. last_name: Sitte - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Mckenzie C, Spanova M, Johnson AJ, et al. Isolation of synaptic vesicles from genetically engineered cultured neurons. Journal of Neuroscience Methods. 2019;312:114-121. doi:10.1016/j.jneumeth.2018.11.018 apa: Mckenzie, C., Spanova, M., Johnson, A. J., Kainrath, S., Zheden, V., Sitte, H. H., & Janovjak, H. L. (2019). Isolation of synaptic vesicles from genetically engineered cultured neurons. Journal of Neuroscience Methods. Elsevier. https://doi.org/10.1016/j.jneumeth.2018.11.018 chicago: Mckenzie, Catherine, Miroslava Spanova, Alexander J Johnson, Stephanie Kainrath, Vanessa Zheden, Harald H. Sitte, and Harald L Janovjak. “Isolation of Synaptic Vesicles from Genetically Engineered Cultured Neurons.” Journal of Neuroscience Methods. Elsevier, 2019. https://doi.org/10.1016/j.jneumeth.2018.11.018. ieee: C. Mckenzie et al., “Isolation of synaptic vesicles from genetically engineered cultured neurons,” Journal of Neuroscience Methods, vol. 312. Elsevier, pp. 114–121, 2019. ista: Mckenzie C, Spanova M, Johnson AJ, Kainrath S, Zheden V, Sitte HH, Janovjak HL. 2019. Isolation of synaptic vesicles from genetically engineered cultured neurons. Journal of Neuroscience Methods. 312, 114–121. mla: Mckenzie, Catherine, et al. “Isolation of Synaptic Vesicles from Genetically Engineered Cultured Neurons.” Journal of Neuroscience Methods, vol. 312, Elsevier, 2019, pp. 114–21, doi:10.1016/j.jneumeth.2018.11.018. short: C. Mckenzie, M. Spanova, A.J. Johnson, S. Kainrath, V. Zheden, H.H. Sitte, H.L. Janovjak, Journal of Neuroscience Methods 312 (2019) 114–121. date_created: 2020-01-30T09:12:19Z date_published: 2019-01-15T00:00:00Z date_updated: 2023-09-06T15:27:29Z day: '15' department: - _id: HaJa - _id: Bio doi: 10.1016/j.jneumeth.2018.11.018 ec_funded: 1 external_id: isi: - '000456220900013' pmid: - '30496761' intvolume: ' 312' isi: 1 language: - iso: eng month: '01' oa_version: None page: 114-121 pmid: 1 project: - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 26538374-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I03630 name: Molecular mechanisms of endocytic cargo recognition in plants - _id: 2548AE96-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets publication: Journal of Neuroscience Methods publication_identifier: issn: - 0165-0270 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Isolation of synaptic vesicles from genetically engineered cultured neurons type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 312 year: '2019' ... --- _id: '7132' abstract: - lang: eng text: "A major challenge in neuroscience research is to dissect the circuits that orchestrate behavior in health and disease. Proteins from a wide range of non-mammalian species, such as microbial opsins, have been successfully transplanted to specific neuronal targets to override their natural communication patterns. The goal of our work is to manipulate synaptic communication in a manner that closely incorporates the functional intricacies of synapses by preserving temporal encoding (i.e. the firing pattern of the presynaptic neuron) and connectivity (i.e. target specific synapses rather than specific neurons). Our strategy to achieve this goal builds on the use of non-mammalian transplants to create a synthetic synapse. The mode of modulation comes from pre-synaptic uptake of a synthetic neurotransmitter (SN) into synaptic vesicles by means of a genetically targeted transporter selective for the SN. Upon natural vesicular release, exposure of the SN to the synaptic cleft will modify the post-synaptic potential through an orthogonal ligand gated ion channel. To achieve this goal we have functionally characterized a mixed cationic methionine-gated ion channel from Arabidopsis thaliana, designed a method to functionally characterize a synthetic transporter in isolated synaptic vesicles without the need for transgenic animals, identified and extracted multiple prokaryotic uptake systems that are substrate specific for methionine (Met), and established a primary/cell line co-culture system that would allow future combinatorial testing of this orthogonal transmitter-transporter-channel trifecta.\r\nSynthetic synapses will provide a unique opportunity to manipulate synaptic communication while maintaining the electrophysiological integrity of the pre-synaptic cell. In this way, information may be preserved that was generated in upstream circuits and that could be essential for concerted function and information processing." alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Catherine full_name: Mckenzie, Catherine id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87 last_name: Mckenzie citation: ama: Mckenzie C. Design and characterization of methods and biological components to realize synthetic neurotransmission. 2019. doi:10.15479/at:ista:7132 apa: Mckenzie, C. (2019). Design and characterization of methods and biological components to realize synthetic neurotransmission. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:7132 chicago: Mckenzie, Catherine. “Design and Characterization of Methods and Biological Components to Realize Synthetic Neurotransmission.” Institute of Science and Technology Austria, 2019. https://doi.org/10.15479/at:ista:7132. ieee: C. Mckenzie, “Design and characterization of methods and biological components to realize synthetic neurotransmission,” Institute of Science and Technology Austria, 2019. ista: Mckenzie C. 2019. Design and characterization of methods and biological components to realize synthetic neurotransmission. Institute of Science and Technology Austria. mla: Mckenzie, Catherine. Design and Characterization of Methods and Biological Components to Realize Synthetic Neurotransmission. Institute of Science and Technology Austria, 2019, doi:10.15479/at:ista:7132. short: C. Mckenzie, Design and Characterization of Methods and Biological Components to Realize Synthetic Neurotransmission, Institute of Science and Technology Austria, 2019. date_created: 2019-11-27T09:07:14Z date_published: 2019-06-27T00:00:00Z date_updated: 2024-03-27T23:30:21Z day: '27' ddc: - '571' - '573' degree_awarded: PhD department: - _id: HaJa doi: 10.15479/at:ista:7132 file: - access_level: closed checksum: 34d0fe0f6e0af97b5937205a3e350423 content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document creator: dernst date_created: 2019-11-27T09:06:10Z date_updated: 2020-07-14T12:47:50Z file_id: '7133' file_name: McKenzie PhD Thesis August 2018 - Corrected Final.docx file_size: 5054633 relation: source_file - access_level: open_access checksum: 140dfb5e3df7edca34f4b6fcc55d876f content_type: application/pdf creator: dernst date_created: 2019-11-27T09:06:10Z date_updated: 2020-07-14T12:47:50Z file_id: '7134' file_name: McKenzie PhD Thesis August 2018 - Corrected Final.pdf file_size: 3231837 relation: main_file file_date_updated: 2020-07-14T12:47:50Z has_accepted_license: '1' language: - iso: eng month: '06' oa: 1 oa_version: Published Version page: '95' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria related_material: record: - id: '6266' relation: old_edition status: public status: public supervisor: - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 title: Design and characterization of methods and biological components to realize synthetic neurotransmission type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2019' ... --- _id: '137' abstract: - lang: eng text: Fluorescent sensors are an essential part of the experimental toolbox of the life sciences, where they are used ubiquitously to visualize intra- and extracellular signaling. In the brain, optical neurotransmitter sensors can shed light on temporal and spatial aspects of signal transmission by directly observing, for instance, neurotransmitter release and spread. Here we report the development and application of the first optical sensor for the amino acid glycine, which is both an inhibitory neurotransmitter and a co-agonist of the N-methyl-d-aspartate receptors (NMDARs) involved in synaptic plasticity. Computational design of a glycine-specific binding protein allowed us to produce the optical glycine FRET sensor (GlyFS), which can be used with single and two-photon excitation fluorescence microscopy. We took advantage of this newly developed sensor to test predictions about the uneven spatial distribution of glycine in extracellular space and to demonstrate that extracellular glycine levels are controlled by plasticity-inducing stimuli. article_processing_charge: No article_type: original author: - first_name: William full_name: Zhang, William last_name: Zhang - first_name: Michel full_name: Herde, Michel last_name: Herde - first_name: Joshua full_name: Mitchell, Joshua last_name: Mitchell - first_name: Jason full_name: Whitfield, Jason last_name: Whitfield - first_name: Andreas full_name: Wulff, Andreas last_name: Wulff - first_name: Vanessa full_name: Vongsouthi, Vanessa last_name: Vongsouthi - first_name: Inmaculada full_name: Sanchez Romero, Inmaculada id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87 last_name: Sanchez Romero - first_name: Polina full_name: Gulakova, Polina last_name: Gulakova - first_name: Daniel full_name: Minge, Daniel last_name: Minge - first_name: Björn full_name: Breithausen, Björn last_name: Breithausen - first_name: Susanne full_name: Schoch, Susanne last_name: Schoch - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Colin full_name: Jackson, Colin last_name: Jackson - first_name: Christian full_name: Henneberger, Christian last_name: Henneberger citation: ama: Zhang W, Herde M, Mitchell J, et al. Monitoring hippocampal glycine with the computationally designed optical sensor GlyFS. Nature Chemical Biology. 2018;14(9):861-869. doi:10.1038/s41589-018-0108-2 apa: Zhang, W., Herde, M., Mitchell, J., Whitfield, J., Wulff, A., Vongsouthi, V., … Henneberger, C. (2018). Monitoring hippocampal glycine with the computationally designed optical sensor GlyFS. Nature Chemical Biology. Nature Publishing Group. https://doi.org/10.1038/s41589-018-0108-2 chicago: Zhang, William, Michel Herde, Joshua Mitchell, Jason Whitfield, Andreas Wulff, Vanessa Vongsouthi, Inmaculada Sanchez-Romero, et al. “Monitoring Hippocampal Glycine with the Computationally Designed Optical Sensor GlyFS.” Nature Chemical Biology. Nature Publishing Group, 2018. https://doi.org/10.1038/s41589-018-0108-2. ieee: W. Zhang et al., “Monitoring hippocampal glycine with the computationally designed optical sensor GlyFS,” Nature Chemical Biology, vol. 14, no. 9. Nature Publishing Group, pp. 861–869, 2018. ista: Zhang W, Herde M, Mitchell J, Whitfield J, Wulff A, Vongsouthi V, Sanchez-Romero I, Gulakova P, Minge D, Breithausen B, Schoch S, Janovjak HL, Jackson C, Henneberger C. 2018. Monitoring hippocampal glycine with the computationally designed optical sensor GlyFS. Nature Chemical Biology. 14(9), 861–869. mla: Zhang, William, et al. “Monitoring Hippocampal Glycine with the Computationally Designed Optical Sensor GlyFS.” Nature Chemical Biology, vol. 14, no. 9, Nature Publishing Group, 2018, pp. 861–69, doi:10.1038/s41589-018-0108-2. short: W. Zhang, M. Herde, J. Mitchell, J. Whitfield, A. Wulff, V. Vongsouthi, I. Sanchez-Romero, P. Gulakova, D. Minge, B. Breithausen, S. Schoch, H.L. Janovjak, C. Jackson, C. Henneberger, Nature Chemical Biology 14 (2018) 861–869. date_created: 2018-12-11T11:44:49Z date_published: 2018-07-30T00:00:00Z date_updated: 2023-09-13T08:58:05Z day: '30' department: - _id: HaJa doi: 10.1038/s41589-018-0108-2 external_id: isi: - '000442174500013' pmid: - '30061718 ' intvolume: ' 14' isi: 1 issue: '9' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pubmed/30061718 month: '07' oa: 1 oa_version: Submitted Version page: 861 - 869 pmid: 1 project: - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) publication: Nature Chemical Biology publication_status: published publisher: Nature Publishing Group publist_id: '7786' quality_controlled: '1' scopus_import: '1' status: public title: Monitoring hippocampal glycine with the computationally designed optical sensor GlyFS type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 14 year: '2018' ... --- _id: '5984' abstract: - lang: eng text: G-protein-coupled receptors (GPCRs) form the largest receptor family, relay environmental stimuli to changes in cell behavior and represent prime drug targets. Many GPCRs are classified as orphan receptors because of the limited knowledge on their ligands and coupling to cellular signaling machineries. Here, we engineer a library of 63 chimeric receptors that contain the signaling domains of human orphan and understudied GPCRs functionally linked to the light-sensing domain of rhodopsin. Upon stimulation with visible light, we identify activation of canonical cell signaling pathways, including cAMP-, Ca2+-, MAPK/ERK-, and Rho-dependent pathways, downstream of the engineered receptors. For the human pseudogene GPR33, we resurrect a signaling function that supports its hypothesized role as a pathogen entry site. These results demonstrate that substituting unknown chemical activators with a light switch can reveal information about protein function and provide an optically controlled protein library for exploring the physiology and therapeutic potential of understudied GPCRs. article_number: '1950' article_processing_charge: No author: - first_name: Maurizio full_name: Morri, Maurizio id: 4863116E-F248-11E8-B48F-1D18A9856A87 last_name: Morri - first_name: Inmaculada full_name: Sanchez-Romero, Inmaculada id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87 last_name: Sanchez-Romero - first_name: Alexandra-Madelaine full_name: Tichy, Alexandra-Madelaine id: 29D8BB2C-F248-11E8-B48F-1D18A9856A87 last_name: Tichy - first_name: Stephanie full_name: Kainrath, Stephanie id: 32CFBA64-F248-11E8-B48F-1D18A9856A87 last_name: Kainrath - first_name: Elliot J. full_name: Gerrard, Elliot J. last_name: Gerrard - first_name: Priscila full_name: Hirschfeld, Priscila id: 435ACB3A-F248-11E8-B48F-1D18A9856A87 last_name: Hirschfeld - first_name: Jan full_name: Schwarz, Jan id: 346C1EC6-F248-11E8-B48F-1D18A9856A87 last_name: Schwarz - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Morri M, Sanchez-Romero I, Tichy A-M, et al. Optical functionalization of human class A orphan G-protein-coupled receptors. Nature Communications. 2018;9(1). doi:10.1038/s41467-018-04342-1 apa: Morri, M., Sanchez-Romero, I., Tichy, A.-M., Kainrath, S., Gerrard, E. J., Hirschfeld, P., … Janovjak, H. L. (2018). Optical functionalization of human class A orphan G-protein-coupled receptors. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-018-04342-1 chicago: Morri, Maurizio, Inmaculada Sanchez-Romero, Alexandra-Madelaine Tichy, Stephanie Kainrath, Elliot J. Gerrard, Priscila Hirschfeld, Jan Schwarz, and Harald L Janovjak. “Optical Functionalization of Human Class A Orphan G-Protein-Coupled Receptors.” Nature Communications. Springer Nature, 2018. https://doi.org/10.1038/s41467-018-04342-1. ieee: M. Morri et al., “Optical functionalization of human class A orphan G-protein-coupled receptors,” Nature Communications, vol. 9, no. 1. Springer Nature, 2018. ista: Morri M, Sanchez-Romero I, Tichy A-M, Kainrath S, Gerrard EJ, Hirschfeld P, Schwarz J, Janovjak HL. 2018. Optical functionalization of human class A orphan G-protein-coupled receptors. Nature Communications. 9(1), 1950. mla: Morri, Maurizio, et al. “Optical Functionalization of Human Class A Orphan G-Protein-Coupled Receptors.” Nature Communications, vol. 9, no. 1, 1950, Springer Nature, 2018, doi:10.1038/s41467-018-04342-1. short: M. Morri, I. Sanchez-Romero, A.-M. Tichy, S. Kainrath, E.J. Gerrard, P. Hirschfeld, J. Schwarz, H.L. Janovjak, Nature Communications 9 (2018). date_created: 2019-02-14T10:50:24Z date_published: 2018-12-01T00:00:00Z date_updated: 2023-09-19T14:29:32Z day: '01' ddc: - '570' department: - _id: HaJa - _id: CaGu - _id: MiSi doi: 10.1038/s41467-018-04342-1 ec_funded: 1 external_id: isi: - '000432280000006' file: - access_level: open_access checksum: 8325fcc194264af4749e662a73bf66b5 content_type: application/pdf creator: kschuh date_created: 2019-02-14T10:58:29Z date_updated: 2020-07-14T12:47:14Z file_id: '5985' file_name: 2018_Springer_Morri.pdf file_size: 1349914 relation: main_file file_date_updated: 2020-07-14T12:47:14Z has_accepted_license: '1' intvolume: ' 9' isi: 1 issue: '1' language: - iso: eng month: '12' oa: 1 oa_version: Published Version project: - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 255A6082-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets publication: Nature Communications publication_identifier: issn: - 2041-1723 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Optical functionalization of human class A orphan G-protein-coupled receptors tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 9 year: '2018' ... --- _id: '418' abstract: - lang: eng text: "The aim of this thesis was the development of new strategies for optical and optogenetic control of proliferative and pro-survival signaling, and characterizing them from the molecular mechanism up to cellular effects. These new light-based methods have unique features, such as red light as an activator, or the avoidance of gene delivery, which enable to overcome current limitations, such as light delivery to target tissues and feasibility as therapeutic approach. A special focus was placed on implementing these new light-based approaches in pancreatic β-cells, as β-cells are the key players in diabetes and especially their loss in number negatively affects disease progression. Currently no treatment options are available to compensate the lack of functional β-cells in diabetic patients.\r\nIn a first approach, red-light-activated growth factor receptors, in particular receptor tyrosine kinases were engineered and characterized. Receptor activation with light allows spatio-temporal control compared to ligand-based activation, and especially red light exhibits deeper tissue penetration than other wavelengths of the visible spectrum. Red-light-activated receptor tyrosine kinases robustly activated major growth factor related signaling pathways with a high temporal resolution. Moreover, the remote activation of the proliferative MAPK/Erk pathway by red-light-activated receptor tyrosine kinases in a pancreatic β-cell line was also achieved, through one centimeter thick mouse tissue. Although red-light-activated receptor tyrosine kinases are particularly attractive for applications in animal models due to the deep tissue penetration of red light, a drawback, especially with regard to translation into humans, is the requirement of gene therapy.\r\nIn a second approach an endogenous light-sensitive mechanism was identified and its potential to promote proliferative and pro-survival signals was explored, towards light-based tissue regeneration without the need for gene transfer. Blue-green light illumination was found to be sufficient for the activation of proliferation and survival promoting signaling pathways in primary pancreatic murine and human islets. Blue-green light also led to an increase in proliferation of primary islet cells, an effect which was shown to be mostly β-cell specific in human islets. Moreover, it was demonstrated that this approach of pancreatic β-cell expansion did not have any negative effect on the β-cell function, in particular on their insulin secretion capacity. In contrast, a trend for enhanced insulin secretion under high glucose conditions after illumination was detected. In order to unravel the detailed characteristics of this endogenous light-sensitive mechanism, the precise light requirements were determined. In addition, the expression of light sensing proteins, OPN3 and rhodopsin, was detected. The observed effects were found to be independent of handling effects such as temperature differences and cytochrome c oxidase dependent ATP increase, but they were found to be enhanced through the knockout of OPN3. The exact mechanism of how islets cells sense light and the identity of the photoreceptor remains unknown.\r\nSummarized two new light-based systems with unique features were established that enable the activation of proliferative and pro-survival signaling pathways. While red-light-activated receptor tyrosine kinases open a new avenue for optogenetics research, by allowing non-invasive control of signaling in vivo, the identified endogenous light-sensitive mechanism has the potential to be the basis of a gene therapy-free therapeutical approach for light-based β-cell expansion." alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Eva full_name: Gschaider-Reichhart, Eva id: 3FEE232A-F248-11E8-B48F-1D18A9856A87 last_name: Gschaider-Reichhart orcid: 0000-0002-7218-7738 citation: ama: Gschaider-Reichhart E. Optical and optogenetic control of proliferation and survival . 2018. doi:10.15479/AT:ISTA:th_913 apa: Gschaider-Reichhart, E. (2018). Optical and optogenetic control of proliferation and survival . Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:th_913 chicago: Gschaider-Reichhart, Eva. “Optical and Optogenetic Control of Proliferation and Survival .” Institute of Science and Technology Austria, 2018. https://doi.org/10.15479/AT:ISTA:th_913. ieee: E. Gschaider-Reichhart, “Optical and optogenetic control of proliferation and survival ,” Institute of Science and Technology Austria, 2018. ista: Gschaider-Reichhart E. 2018. Optical and optogenetic control of proliferation and survival . Institute of Science and Technology Austria. mla: Gschaider-Reichhart, Eva. Optical and Optogenetic Control of Proliferation and Survival . Institute of Science and Technology Austria, 2018, doi:10.15479/AT:ISTA:th_913. short: E. Gschaider-Reichhart, Optical and Optogenetic Control of Proliferation and Survival , Institute of Science and Technology Austria, 2018. date_created: 2018-12-11T11:46:22Z date_published: 2018-01-08T00:00:00Z date_updated: 2023-09-22T09:20:10Z day: '08' ddc: - '571' - '570' degree_awarded: PhD department: - _id: HaJa doi: 10.15479/AT:ISTA:th_913 file: - access_level: closed checksum: 697fa72ca36fb1b8ceabc133d58a73e5 content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document creator: dernst date_created: 2019-04-05T09:28:03Z date_updated: 2020-07-14T12:46:24Z file_id: '6222' file_name: 2018_THESIS_Gschaider-Reichhart_source.docx file_size: 7012495 relation: source_file - access_level: open_access checksum: 58d7d1e9e58aeb7f061ab686b1d8a48c content_type: application/pdf creator: dernst date_created: 2019-04-05T09:28:03Z date_updated: 2020-07-14T12:46:24Z file_id: '6223' file_name: 2018_THESIS_Gschaider-Reichhart.pdf file_size: 6355280 relation: main_file file_date_updated: 2020-07-14T12:46:24Z has_accepted_license: '1' language: - iso: eng month: '01' oa: 1 oa_version: Published Version page: '107' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria publist_id: '7405' pubrep_id: '913' related_material: record: - id: '1441' relation: part_of_dissertation status: public - id: '1678' relation: part_of_dissertation status: public - id: '2084' relation: part_of_dissertation status: public - id: '1028' relation: part_of_dissertation status: public status: public supervisor: - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 title: 'Optical and optogenetic control of proliferation and survival ' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2018' ... --- _id: '6266' abstract: - lang: eng text: 'A major challenge in neuroscience research is to dissect the circuits that orchestrate behavior in health and disease. Proteins from a wide range of non-mammalian species, such as microbial opsins, have been successfully transplanted to specific neuronal targets to override their natural communication patterns. The goal of our work is to manipulate synaptic communication in a manner that closely incorporates the functional intricacies of synapses by preserving temporal encoding (i.e. the firing pattern of the presynaptic neuron) and connectivity (i.e. target specific synapses rather than specific neurons). Our strategy to achieve this goal builds on the use of non-mammalian transplants to create a synthetic synapse. The mode of modulation comes from pre-synaptic uptake of a synthetic neurotransmitter (SN) into synaptic vesicles by means of a genetically targeted transporter selective for the SN. Upon natural vesicular release, exposure of the SN to the synaptic cleft will modify the post-synaptic potential through an orthogonal ligand gated ion channel. To achieve this goal we have functionally characterized a mixed cationic methionine-gated ion channel from Arabidopsis thaliana, designed a method to functionally characterize a synthetic transporter in isolated synaptic vesicles without the need for transgenic animals, identified and extracted multiple prokaryotic uptake systems that are substrate specific for methionine (Met), and established a primary/cell line co-culture system that would allow future combinatorial testing of this orthogonal transmitter-transporter-channel trifecta. Synthetic synapses will provide a unique opportunity to manipulate synaptic communication while maintaining the electrophysiological integrity of the pre-synaptic cell. In this way, information may be preserved that was generated in upstream circuits and that could be essential for concerted function and information processing. ' alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Catherine full_name: Mckenzie, Catherine id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87 last_name: Mckenzie citation: ama: Mckenzie C. Design and characterization of methods and biological components to realize synthetic neurotransmission . 2018. doi:10.15479/at:ista:th_1055 apa: Mckenzie, C. (2018). Design and characterization of methods and biological components to realize synthetic neurotransmission . Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:th_1055 chicago: Mckenzie, Catherine. “Design and Characterization of Methods and Biological Components to Realize Synthetic Neurotransmission .” Institute of Science and Technology Austria, 2018. https://doi.org/10.15479/at:ista:th_1055. ieee: C. Mckenzie, “Design and characterization of methods and biological components to realize synthetic neurotransmission ,” Institute of Science and Technology Austria, 2018. ista: Mckenzie C. 2018. Design and characterization of methods and biological components to realize synthetic neurotransmission . Institute of Science and Technology Austria. mla: Mckenzie, Catherine. Design and Characterization of Methods and Biological Components to Realize Synthetic Neurotransmission . Institute of Science and Technology Austria, 2018, doi:10.15479/at:ista:th_1055. short: C. Mckenzie, Design and Characterization of Methods and Biological Components to Realize Synthetic Neurotransmission , Institute of Science and Technology Austria, 2018. date_created: 2019-04-09T14:13:39Z date_published: 2018-10-31T00:00:00Z date_updated: 2023-09-07T13:02:37Z day: '31' ddc: - '571' - '573' degree_awarded: PhD department: - _id: HaJa doi: 10.15479/at:ista:th_1055 file: - access_level: open_access checksum: 9d2c2dca04b00e485470c28b262af59a content_type: application/pdf creator: dernst date_created: 2019-04-09T14:12:40Z date_updated: 2021-02-11T11:17:16Z embargo: 2019-11-24 file_id: '6267' file_name: 2018_Thesis_McKenzie.pdf file_size: 4906420 relation: main_file - access_level: closed checksum: 50b58c272899601bc6fd9642c4dc97f1 content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document creator: dernst date_created: 2019-04-09T14:12:40Z date_updated: 2020-07-14T12:47:25Z embargo_to: open_access file_id: '6268' file_name: 2018_Thesis_McKenzie_source.docx file_size: 5053545 relation: source_file file_date_updated: 2021-02-11T11:17:16Z has_accepted_license: '1' language: - iso: eng month: '10' oa: 1 oa_version: Published Version page: '95' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria pubrep_id: '1055' related_material: record: - id: '7132' relation: new_edition status: public status: public supervisor: - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 title: 'Design and characterization of methods and biological components to realize synthetic neurotransmission ' type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2018' ... --- _id: '538' abstract: - lang: ger text: 'Optogenetik und Photopharmakologie ermöglichen präzise räumliche und zeitliche Kontrolle von Proteinwechselwirkung und -funktion in Zellen und Tieren. Optogenetische Methoden, die auf grünes Licht ansprechen und zum Trennen von Proteinkomplexen geeignet sind, sind nichtweitläufig verfügbar, würden jedoch mehrfarbige Experimente zur Beantwortung von biologischen Fragestellungen ermöglichen. Hier demonstrieren wir die Verwendung von Cobalamin(Vitamin B12)-bindenden Domänen von bakteriellen CarH-Transkriptionsfaktoren zur Grünlicht-induzierten Dissoziation von Rezeptoren. Fusioniert mit dem Fibroblasten-W achstumsfaktor-Rezeptor 1 führten diese im Dunkeln in kultivierten Zellen zu Signalaktivität durch Oligomerisierung, welche durch Beleuchten umgehend aufgehoben wurde. In Zebrafischembryonen, die einen derartigen Rezeptor exprimieren, ermöglichte grünes Licht die Kontrolle über abnormale Signalaktivität während der Embryonalentwicklung. ' author: - first_name: Stephanie full_name: Kainrath, Stephanie id: 32CFBA64-F248-11E8-B48F-1D18A9856A87 last_name: Kainrath - first_name: Manuela full_name: Stadler, Manuela last_name: Stadler - first_name: Eva full_name: Gschaider-Reichhart, Eva id: 3FEE232A-F248-11E8-B48F-1D18A9856A87 last_name: Gschaider-Reichhart orcid: 0000-0002-7218-7738 - first_name: Martin full_name: Distel, Martin last_name: Distel - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen. Angewandte Chemie. 2017;129(16):4679-4682. doi:10.1002/ange.201611998 apa: Kainrath, S., Stadler, M., Gschaider-Reichhart, E., Distel, M., & Janovjak, H. L. (2017). Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen. Angewandte Chemie. Wiley. https://doi.org/10.1002/ange.201611998 chicago: Kainrath, Stephanie, Manuela Stadler, Eva Gschaider-Reichhart, Martin Distel, and Harald L Janovjak. “Grünlicht-Induzierte Rezeptorinaktivierung Durch Cobalamin-Bindende Domänen.” Angewandte Chemie. Wiley, 2017. https://doi.org/10.1002/ange.201611998. ieee: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, and H. L. Janovjak, “Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen,” Angewandte Chemie, vol. 129, no. 16. Wiley, pp. 4679–4682, 2017. ista: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. 2017. Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen. Angewandte Chemie. 129(16), 4679–4682. mla: Kainrath, Stephanie, et al. “Grünlicht-Induzierte Rezeptorinaktivierung Durch Cobalamin-Bindende Domänen.” Angewandte Chemie, vol. 129, no. 16, Wiley, 2017, pp. 4679–82, doi:10.1002/ange.201611998. short: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, H.L. Janovjak, Angewandte Chemie 129 (2017) 4679–4682. date_created: 2018-12-11T11:47:02Z date_published: 2017-05-20T00:00:00Z date_updated: 2021-01-12T08:01:33Z day: '20' ddc: - '571' department: - _id: CaGu - _id: HaJa doi: 10.1002/ange.201611998 ec_funded: 1 file: - access_level: open_access checksum: d66fee867e7cdbfa3fe276c2fb0778bb content_type: application/pdf creator: system date_created: 2018-12-12T10:13:24Z date_updated: 2020-07-14T12:46:39Z file_id: '5007' file_name: IST-2018-932-v1+1_Kainrath_et_al-2017-Angewandte_Chemie.pdf file_size: 1668557 relation: main_file file_date_updated: 2020-07-14T12:46:39Z has_accepted_license: '1' intvolume: ' 129' issue: '16' language: - iso: eng month: '05' oa: 1 oa_version: Published Version page: 4679 - 4682 project: - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 255A6082-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets publication: Angewandte Chemie publication_status: published publisher: Wiley publist_id: '7279' pubrep_id: '932' quality_controlled: '1' status: public title: Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 129 year: '2017' ... --- _id: '957' abstract: - lang: eng text: Small molecule biosensors based on Forster resonance energy transfer (FRET) enable small molecule signaling to be monitored with high spatial and temporal resolution in complex cellular environments. FRET sensors can be constructed by fusing a pair of fluorescent proteins to a suitable recognition domain, such as a member of the solute-binding protein (SBP) superfamily. However, naturally occurring SBPs may be unsuitable for incorporation into FRET sensors due to their low thermostability, which may preclude imaging under physiological conditions, or because the positions of their N- and C-termini may be suboptimal for fusion of fluorescent proteins, which may limit the dynamic range of the resulting sensors. Here, we show how these problems can be overcome using ancestral protein reconstruction and circular permutation. Ancestral protein reconstruction, used as a protein engineering strategy, leverages phylogenetic information to improve the thermostability of proteins, while circular permutation enables the termini of an SBP to be repositioned to maximize the dynamic range of the resulting FRET sensor. We also provide a protocol for cloning the engineered SBPs into FRET sensor constructs using Golden Gate assembly and discuss considerations for in situ characterization of the FRET sensors. alternative_title: - Methods in Molecular Biology author: - first_name: Ben full_name: Clifton, Ben last_name: Clifton - first_name: Jason full_name: Whitfield, Jason last_name: Whitfield - first_name: Inmaculada full_name: Sanchez Romero, Inmaculada id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87 last_name: Sanchez Romero - first_name: Michel full_name: Herde, Michel last_name: Herde - first_name: Christian full_name: Henneberger, Christian last_name: Henneberger - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Colin full_name: Jackson, Colin last_name: Jackson citation: ama: 'Clifton B, Whitfield J, Sanchez-Romero I, et al. Ancestral protein reconstruction and circular permutation for improving the stability and dynamic range of FRET sensors. In: Stein V, ed. Synthetic Protein Switches. Vol 1596. Synthetic Protein Switches. Springer; 2017:71-87. doi:10.1007/978-1-4939-6940-1_5' apa: Clifton, B., Whitfield, J., Sanchez-Romero, I., Herde, M., Henneberger, C., Janovjak, H. L., & Jackson, C. (2017). Ancestral protein reconstruction and circular permutation for improving the stability and dynamic range of FRET sensors. In V. Stein (Ed.), Synthetic Protein Switches (Vol. 1596, pp. 71–87). Springer. https://doi.org/10.1007/978-1-4939-6940-1_5 chicago: Clifton, Ben, Jason Whitfield, Inmaculada Sanchez-Romero, Michel Herde, Christian Henneberger, Harald L Janovjak, and Colin Jackson. “Ancestral Protein Reconstruction and Circular Permutation for Improving the Stability and Dynamic Range of FRET Sensors.” In Synthetic Protein Switches, edited by Viktor Stein, 1596:71–87. Synthetic Protein Switches. Springer, 2017. https://doi.org/10.1007/978-1-4939-6940-1_5. ieee: B. Clifton et al., “Ancestral protein reconstruction and circular permutation for improving the stability and dynamic range of FRET sensors,” in Synthetic Protein Switches, vol. 1596, V. Stein, Ed. Springer, 2017, pp. 71–87. ista: 'Clifton B, Whitfield J, Sanchez-Romero I, Herde M, Henneberger C, Janovjak HL, Jackson C. 2017.Ancestral protein reconstruction and circular permutation for improving the stability and dynamic range of FRET sensors. In: Synthetic Protein Switches. Methods in Molecular Biology, vol. 1596, 71–87.' mla: Clifton, Ben, et al. “Ancestral Protein Reconstruction and Circular Permutation for Improving the Stability and Dynamic Range of FRET Sensors.” Synthetic Protein Switches, edited by Viktor Stein, vol. 1596, Springer, 2017, pp. 71–87, doi:10.1007/978-1-4939-6940-1_5. short: B. Clifton, J. Whitfield, I. Sanchez-Romero, M. Herde, C. Henneberger, H.L. Janovjak, C. Jackson, in:, V. Stein (Ed.), Synthetic Protein Switches, Springer, 2017, pp. 71–87. date_created: 2018-12-11T11:49:24Z date_published: 2017-03-15T00:00:00Z date_updated: 2021-01-12T08:22:13Z day: '15' department: - _id: HaJa doi: 10.1007/978-1-4939-6940-1_5 editor: - first_name: Viktor full_name: Stein, Viktor last_name: Stein intvolume: ' 1596' language: - iso: eng month: '03' oa_version: None page: 71 - 87 project: - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) publication: Synthetic Protein Switches publication_identifier: issn: - '10643745' publication_status: published publisher: Springer publist_id: '6451' quality_controlled: '1' scopus_import: 1 series_title: Synthetic Protein Switches status: public title: Ancestral protein reconstruction and circular permutation for improving the stability and dynamic range of FRET sensors type: book_chapter user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 1596 year: '2017' ... --- _id: '958' abstract: - lang: eng text: Biosensors that exploit Forster resonance energy transfer (FRET) can be used to visualize biological and physiological processes and are capable of providing detailed information in both spatial and temporal dimensions. In a FRET-based biosensor, substrate binding is associated with a change in the relative positions of two fluorophores, leading to a change in FRET efficiency that may be observed in the fluorescence spectrum. As a result, their design requires a ligand-binding protein that exhibits a conformational change upon binding. However, not all ligand-binding proteins produce responsive sensors upon conjugation to fluorescent proteins or dyes, and identifying the optimum locations for the fluorophores often involves labor-intensive iterative design or high-throughput screening. Combining the genetic fusion of a fluorescent protein to the ligand-binding protein with site-specific covalent attachment of a fluorescent dye can allow fine control over the positions of the two fluorophores, allowing the construction of very sensitive sensors. This relies upon the accurate prediction of the locations of the two fluorophores in bound and unbound states. In this chapter, we describe a method for computational identification of dye-attachment sites that allows the use of cysteine modification to attach synthetic dyes that can be paired with a fluorescent protein for the purposes of creating FRET sensors. alternative_title: - Methods in Molecular Biology author: - first_name: Joshua full_name: Mitchell, Joshua last_name: Mitchell - first_name: William full_name: Zhang, William last_name: Zhang - first_name: Michel full_name: Herde, Michel last_name: Herde - first_name: Christian full_name: Henneberger, Christian last_name: Henneberger - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Megan full_name: O'Mara, Megan last_name: O'Mara - first_name: Colin full_name: Jackson, Colin last_name: Jackson citation: ama: 'Mitchell J, Zhang W, Herde M, et al. Method for developing optical sensors using a synthetic dye fluorescent protein FRET pair and computational modeling and assessment. In: Stein V, ed. Synthetic Protein Switches. Vol 1596. Synthetic Protein Switches. Springer; 2017:89-99. doi:10.1007/978-1-4939-6940-1_6' apa: Mitchell, J., Zhang, W., Herde, M., Henneberger, C., Janovjak, H. L., O’Mara, M., & Jackson, C. (2017). Method for developing optical sensors using a synthetic dye fluorescent protein FRET pair and computational modeling and assessment. In V. Stein (Ed.), Synthetic Protein Switches (Vol. 1596, pp. 89–99). Springer. https://doi.org/10.1007/978-1-4939-6940-1_6 chicago: Mitchell, Joshua, William Zhang, Michel Herde, Christian Henneberger, Harald L Janovjak, Megan O’Mara, and Colin Jackson. “Method for Developing Optical Sensors Using a Synthetic Dye Fluorescent Protein FRET Pair and Computational Modeling and Assessment.” In Synthetic Protein Switches, edited by Viktor Stein, 1596:89–99. Synthetic Protein Switches. Springer, 2017. https://doi.org/10.1007/978-1-4939-6940-1_6. ieee: J. Mitchell et al., “Method for developing optical sensors using a synthetic dye fluorescent protein FRET pair and computational modeling and assessment,” in Synthetic Protein Switches, vol. 1596, V. Stein, Ed. Springer, 2017, pp. 89–99. ista: 'Mitchell J, Zhang W, Herde M, Henneberger C, Janovjak HL, O’Mara M, Jackson C. 2017.Method for developing optical sensors using a synthetic dye fluorescent protein FRET pair and computational modeling and assessment. In: Synthetic Protein Switches. Methods in Molecular Biology, vol. 1596, 89–99.' mla: Mitchell, Joshua, et al. “Method for Developing Optical Sensors Using a Synthetic Dye Fluorescent Protein FRET Pair and Computational Modeling and Assessment.” Synthetic Protein Switches, edited by Viktor Stein, vol. 1596, Springer, 2017, pp. 89–99, doi:10.1007/978-1-4939-6940-1_6. short: J. Mitchell, W. Zhang, M. Herde, C. Henneberger, H.L. Janovjak, M. O’Mara, C. Jackson, in:, V. Stein (Ed.), Synthetic Protein Switches, Springer, 2017, pp. 89–99. date_created: 2018-12-11T11:49:24Z date_published: 2017-05-15T00:00:00Z date_updated: 2021-01-12T08:22:13Z day: '15' department: - _id: HaJa doi: 10.1007/978-1-4939-6940-1_6 editor: - first_name: Viktor full_name: Stein, Viktor last_name: Stein intvolume: ' 1596' language: - iso: eng month: '05' oa_version: None page: 89 - 99 publication: Synthetic Protein Switches publication_identifier: issn: - '10643745' publication_status: published publisher: Springer publist_id: '6450' quality_controlled: '1' scopus_import: 1 series_title: Synthetic Protein Switches status: public title: Method for developing optical sensors using a synthetic dye fluorescent protein FRET pair and computational modeling and assessment type: book_chapter user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 1596 year: '2017' ... --- _id: '1026' abstract: - lang: eng text: The optogenetic revolution enabled spatially-precise and temporally-precise control over protein function, signaling pathway activation, and animal behavior with tremendous success in the dissection of signaling networks and neural circuits. Very recently, optogenetic methods have been paired with optical reporters in novel drug screening platforms. In these all-optical platforms, light remotely activated ion channels and kinases thereby obviating the use of electrophysiology or reagents. Consequences were remarkable operational simplicity, throughput, and cost-effectiveness that culminated in the identification of new drug candidates. These blueprints for all-optical assays also revealed potential pitfalls and inspire all-optical variants of other screens, such as those that aim at better understanding dynamic drug action or orphan protein function. acknowledgement: This work was supported by grants of the European Union Seventh Framework Programme (CIG-303564), the Human Frontier Science Program (RGY0084_2012), and the Austrian Science Fund FWF (W1232 MolecularDrugTargets). article_processing_charge: No article_type: original author: - first_name: Viviana full_name: Agus, Viviana last_name: Agus - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: 'Agus V, Janovjak HL. Optogenetic methods in drug screening: Technologies and applications. Current Opinion in Biotechnology. 2017;48:8-14. doi:10.1016/j.copbio.2017.02.006' apa: 'Agus, V., & Janovjak, H. L. (2017). Optogenetic methods in drug screening: Technologies and applications. Current Opinion in Biotechnology. Elsevier. https://doi.org/10.1016/j.copbio.2017.02.006' chicago: 'Agus, Viviana, and Harald L Janovjak. “Optogenetic Methods in Drug Screening: Technologies and Applications.” Current Opinion in Biotechnology. Elsevier, 2017. https://doi.org/10.1016/j.copbio.2017.02.006.' ieee: 'V. Agus and H. L. Janovjak, “Optogenetic methods in drug screening: Technologies and applications,” Current Opinion in Biotechnology, vol. 48. Elsevier, pp. 8–14, 2017.' ista: 'Agus V, Janovjak HL. 2017. Optogenetic methods in drug screening: Technologies and applications. Current Opinion in Biotechnology. 48, 8–14.' mla: 'Agus, Viviana, and Harald L. Janovjak. “Optogenetic Methods in Drug Screening: Technologies and Applications.” Current Opinion in Biotechnology, vol. 48, Elsevier, 2017, pp. 8–14, doi:10.1016/j.copbio.2017.02.006.' short: V. Agus, H.L. Janovjak, Current Opinion in Biotechnology 48 (2017) 8–14. date_created: 2018-12-11T11:49:45Z date_published: 2017-12-01T00:00:00Z date_updated: 2023-09-22T09:26:06Z day: '01' department: - _id: HaJa doi: 10.1016/j.copbio.2017.02.006 ec_funded: 1 external_id: isi: - '000418313200003' intvolume: ' 48' isi: 1 language: - iso: eng month: '12' oa_version: None page: 8 - 14 project: - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 255A6082-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets publication: Current Opinion in Biotechnology publication_identifier: issn: - '09581669' publication_status: published publisher: Elsevier publist_id: '6365' quality_controlled: '1' scopus_import: '1' status: public title: 'Optogenetic methods in drug screening: Technologies and applications' type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 48 year: '2017' ... --- _id: '1028' abstract: - lang: eng text: Optogenetics and photopharmacology provide spatiotemporally precise control over protein interactions and protein function in cells and animals. Optogenetic methods that are sensitive to green light and can be used to break protein complexes are not broadly available but would enable multichromatic experiments with previously inaccessible biological targets. Herein, we repurposed cobalamin (vitamin B12) binding domains of bacterial CarH transcription factors for green-light-induced receptor dissociation. In cultured cells, we observed oligomerization-induced cell signaling for the fibroblast growth factor receptor 1 fused to cobalamin-binding domains in the dark that was rapidly eliminated upon illumination. In zebrafish embryos expressing fusion receptors, green light endowed control over aberrant fibroblast growth factor signaling during development. Green-light-induced domain dissociation and light-inactivated receptors will critically expand the optogenetic toolbox for control of biological processes. acknowledgement: "This work was supported by a grant from the European Union\U0010FC1Ds Seventh Framework Programme (CIG-303564). E.R. was supported by the graduate program MolecularDrugTargets (Austrian Science Fund (FWF), W1232) and a FemTech fellowship (Austrian Research Promotion Agency, 3580812)" article_processing_charge: No author: - first_name: Stephanie full_name: Kainrath, Stephanie id: 32CFBA64-F248-11E8-B48F-1D18A9856A87 last_name: Kainrath - first_name: Manuela full_name: Stadler, Manuela last_name: Stadler - first_name: Eva full_name: Gschaider-Reichhart, Eva id: 3FEE232A-F248-11E8-B48F-1D18A9856A87 last_name: Gschaider-Reichhart orcid: 0000-0002-7218-7738 - first_name: Martin full_name: Distel, Martin last_name: Distel - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. Green-light-induced inactivation of receptor signaling using cobalamin-binding domains. Angewandte Chemie - International Edition. 2017;56(16):4608-4611. doi:10.1002/anie.201611998 apa: Kainrath, S., Stadler, M., Gschaider-Reichhart, E., Distel, M., & Janovjak, H. L. (2017). Green-light-induced inactivation of receptor signaling using cobalamin-binding domains. Angewandte Chemie - International Edition. Wiley-Blackwell. https://doi.org/10.1002/anie.201611998 chicago: Kainrath, Stephanie, Manuela Stadler, Eva Gschaider-Reichhart, Martin Distel, and Harald L Janovjak. “Green-Light-Induced Inactivation of Receptor Signaling Using Cobalamin-Binding Domains.” Angewandte Chemie - International Edition. Wiley-Blackwell, 2017. https://doi.org/10.1002/anie.201611998. ieee: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, and H. L. Janovjak, “Green-light-induced inactivation of receptor signaling using cobalamin-binding domains,” Angewandte Chemie - International Edition, vol. 56, no. 16. Wiley-Blackwell, pp. 4608–4611, 2017. ista: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. 2017. Green-light-induced inactivation of receptor signaling using cobalamin-binding domains. Angewandte Chemie - International Edition. 56(16), 4608–4611. mla: Kainrath, Stephanie, et al. “Green-Light-Induced Inactivation of Receptor Signaling Using Cobalamin-Binding Domains.” Angewandte Chemie - International Edition, vol. 56, no. 16, Wiley-Blackwell, 2017, pp. 4608–11, doi:10.1002/anie.201611998. short: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, H.L. Janovjak, Angewandte Chemie - International Edition 56 (2017) 4608–4611. date_created: 2018-12-11T11:49:46Z date_published: 2017-03-20T00:00:00Z date_updated: 2024-03-27T23:30:13Z day: '20' ddc: - '540' department: - _id: CaGu - _id: HaJa doi: 10.1002/anie.201611998 ec_funded: 1 external_id: isi: - '000398154000038' file: - access_level: open_access content_type: application/pdf creator: dernst date_created: 2019-01-18T09:39:55Z date_updated: 2019-01-18T09:39:55Z file_id: '5845' file_name: 2017_communications_Kainrath.pdf file_size: 2614942 relation: main_file success: 1 file_date_updated: 2019-01-18T09:39:55Z has_accepted_license: '1' intvolume: ' 56' isi: 1 issue: '16' language: - iso: eng month: '03' oa: 1 oa_version: Published Version page: 4608-4611 project: - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 26AA4EF2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets [do not use to be deleted] publication: Angewandte Chemie - International Edition publication_identifier: issn: - '14337851' publication_status: published publisher: Wiley-Blackwell publist_id: '6362' quality_controlled: '1' related_material: record: - id: '418' relation: dissertation_contains status: public - id: '7680' relation: part_of_dissertation status: public scopus_import: '1' status: public title: Green-light-induced inactivation of receptor signaling using cobalamin-binding domains tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 56 year: '2017' ... --- _id: '1440' acknowledgement: The author thanks Banerjee et al. (2016) for providing coordinates prior to public release and apologizes to colleagues whose work was not cited or discussed due to the limited space available. The author is supported by grants from EU FP7 (CIG-303564), HFSP (RGY0084_2012), and FWF (W1232). author: - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: 'Janovjak HL. Light at the end of the protein: Crystal structure of a C-terminal light-sensing domain. Structure. 2016;24(2):213-215. doi:10.1016/j.str.2016.01.002' apa: 'Janovjak, H. L. (2016). Light at the end of the protein: Crystal structure of a C-terminal light-sensing domain. Structure. Cell Press. https://doi.org/10.1016/j.str.2016.01.002' chicago: 'Janovjak, Harald L. “Light at the End of the Protein: Crystal Structure of a C-Terminal Light-Sensing Domain.” Structure. Cell Press, 2016. https://doi.org/10.1016/j.str.2016.01.002.' ieee: 'H. L. Janovjak, “Light at the end of the protein: Crystal structure of a C-terminal light-sensing domain,” Structure, vol. 24, no. 2. Cell Press, pp. 213–215, 2016.' ista: 'Janovjak HL. 2016. Light at the end of the protein: Crystal structure of a C-terminal light-sensing domain. Structure. 24(2), 213–215.' mla: 'Janovjak, Harald L. “Light at the End of the Protein: Crystal Structure of a C-Terminal Light-Sensing Domain.” Structure, vol. 24, no. 2, Cell Press, 2016, pp. 213–15, doi:10.1016/j.str.2016.01.002.' short: H.L. Janovjak, Structure 24 (2016) 213–215. date_created: 2018-12-11T11:52:02Z date_published: 2016-02-02T00:00:00Z date_updated: 2021-01-12T06:50:46Z day: '02' department: - _id: HaJa doi: 10.1016/j.str.2016.01.002 ec_funded: 1 intvolume: ' 24' issue: '2' language: - iso: eng month: '02' oa_version: None page: 213 - 215 project: - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 255A6082-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets publication: Structure publication_status: published publisher: Cell Press publist_id: '5756' quality_controlled: '1' scopus_import: 1 status: public title: 'Light at the end of the protein: Crystal structure of a C-terminal light-sensing domain' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 24 year: '2016' ... --- _id: '1101' abstract: - lang: eng text: Optical sensors based on the phenomenon of Förster resonance energy transfer (FRET) are powerful tools that have advanced the study of small molecules in biological systems. However, sensor construction is not trivial and often requires multiple rounds of engineering or an ability to screen large numbers of variants. A method that would allow the accurate rational design of FRET sensors would expedite the production of biologically useful sensors. Here, we present Rangefinder, a computational algorithm that allows rapid in silico screening of dye attachment sites in a ligand-binding protein for the conjugation of a dye molecule to act as a Förster acceptor for a fused fluorescent protein. We present three ratiometric fluorescent sensors designed with Rangefinder, including a maltose sensor with a dynamic range of >300% and the first sensors for the most abundant sialic acid in human cells, N-acetylneuraminic acid. Provided a ligand-binding protein exists, it is our expectation that this model will facilitate the design of an optical sensor for any small molecule of interest. acknowledgement: "J.A.M., J.H.W., and W.H.Z. were supported by Australian\r\nPostgraduate Awards (APA), AS Sargeson Supplementary\r\nscholarships, and RSC supplementary scholarships. C.J.J.\r\nacknowledges support from a Human Frontiers in Science\r\nYoung Investigator Award and a Discovery Project and Future\r\nFellowship from the Australian Research Council. M.L.O. is\r\nsupported by an Australian Research Council Discovery Project\r\n(DP130102153) and the Merit Allocation Scheme of the\r\nNational Computational Infrastructure." article_processing_charge: No author: - first_name: Joshua full_name: Mitchell, Joshua last_name: Mitchell - first_name: Jason full_name: Whitfield, Jason last_name: Whitfield - first_name: William full_name: Zhang, William last_name: Zhang - first_name: Christian full_name: Henneberger, Christian last_name: Henneberger - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Megan full_name: O'Mara, Megan last_name: O'Mara - first_name: Colin full_name: Jackson, Colin last_name: Jackson citation: ama: 'Mitchell J, Whitfield J, Zhang W, et al. Rangefinder: A semisynthetic FRET sensor design algorithm. ACS SENSORS. 2016;1(11):1286-1290. doi:10.1021/acssensors.6b00576' apa: 'Mitchell, J., Whitfield, J., Zhang, W., Henneberger, C., Janovjak, H. L., O’Mara, M., & Jackson, C. (2016). Rangefinder: A semisynthetic FRET sensor design algorithm. ACS SENSORS. American Chemical Society. https://doi.org/10.1021/acssensors.6b00576' chicago: 'Mitchell, Joshua, Jason Whitfield, William Zhang, Christian Henneberger, Harald L Janovjak, Megan O’Mara, and Colin Jackson. “Rangefinder: A Semisynthetic FRET Sensor Design Algorithm.” ACS SENSORS. American Chemical Society, 2016. https://doi.org/10.1021/acssensors.6b00576.' ieee: 'J. Mitchell et al., “Rangefinder: A semisynthetic FRET sensor design algorithm,” ACS SENSORS, vol. 1, no. 11. American Chemical Society, pp. 1286–1290, 2016.' ista: 'Mitchell J, Whitfield J, Zhang W, Henneberger C, Janovjak HL, O’Mara M, Jackson C. 2016. Rangefinder: A semisynthetic FRET sensor design algorithm. ACS SENSORS. 1(11), 1286–1290.' mla: 'Mitchell, Joshua, et al. “Rangefinder: A Semisynthetic FRET Sensor Design Algorithm.” ACS SENSORS, vol. 1, no. 11, American Chemical Society, 2016, pp. 1286–90, doi:10.1021/acssensors.6b00576.' short: J. Mitchell, J. Whitfield, W. Zhang, C. Henneberger, H.L. Janovjak, M. O’Mara, C. Jackson, ACS SENSORS 1 (2016) 1286–1290. date_created: 2018-12-11T11:50:09Z date_published: 2016-11-10T00:00:00Z date_updated: 2023-03-30T11:32:33Z day: '10' department: - _id: HaJa doi: 10.1021/acssensors.6b00576 intvolume: ' 1' issue: '11' language: - iso: eng month: '11' oa_version: None page: 1286 - 1290 publication: ACS SENSORS publication_status: published publisher: American Chemical Society publist_id: '6274' quality_controlled: '1' scopus_import: '1' status: public title: 'Rangefinder: A semisynthetic FRET sensor design algorithm' type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 1 year: '2016' ... --- _id: '1124' alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Maurizio full_name: Morri, Maurizio id: 4863116E-F248-11E8-B48F-1D18A9856A87 last_name: Morri citation: ama: Morri M. Optical functionalization of human class A orphan G-protein coupled receptors. 2016. apa: Morri, M. (2016). Optical functionalization of human class A orphan G-protein coupled receptors. Institute of Science and Technology Austria. chicago: Morri, Maurizio. “Optical Functionalization of Human Class A Orphan G-Protein Coupled Receptors.” Institute of Science and Technology Austria, 2016. ieee: M. Morri, “Optical functionalization of human class A orphan G-protein coupled receptors,” Institute of Science and Technology Austria, 2016. ista: Morri M. 2016. Optical functionalization of human class A orphan G-protein coupled receptors. Institute of Science and Technology Austria. mla: Morri, Maurizio. Optical Functionalization of Human Class A Orphan G-Protein Coupled Receptors. Institute of Science and Technology Austria, 2016. short: M. Morri, Optical Functionalization of Human Class A Orphan G-Protein Coupled Receptors, Institute of Science and Technology Austria, 2016. date_created: 2018-12-11T11:50:17Z date_published: 2016-03-01T00:00:00Z date_updated: 2023-09-07T11:43:03Z day: '01' ddc: - '570' degree_awarded: PhD department: - _id: HaJa file: - access_level: closed checksum: b439803ac0827cdddd56562a54e3b53b content_type: application/pdf creator: dernst date_created: 2019-08-13T10:50:00Z date_updated: 2019-08-13T10:50:00Z file_id: '6812' file_name: MORRI_PhD_thesis_FINALPLUSSIGNATURES (2).pdf file_size: 4785167 relation: main_file - access_level: open_access checksum: dd4136247fe472e7d47880ec68ac8de0 content_type: application/pdf creator: dernst date_created: 2021-02-22T11:42:06Z date_updated: 2021-02-22T11:42:06Z file_id: '9180' file_name: 2016_MORRI_Thesis.pdf file_size: 4495669 relation: main_file success: 1 file_date_updated: 2021-02-22T11:42:06Z has_accepted_license: '1' language: - iso: eng month: '03' oa: 1 oa_version: Published Version page: '129' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria publist_id: '6236' status: public supervisor: - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 title: Optical functionalization of human class A orphan G-protein coupled receptors type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2016' ... --- _id: '1441' abstract: - lang: eng text: 'Optogenetics and photopharmacology enable the spatio-temporal control of cell and animal behavior by light. Although red light offers deep-tissue penetration and minimal phototoxicity, very few red-light-sensitive optogenetic methods are currently available. We have now developed a red-light-induced homodimerization domain. We first showed that an optimized sensory domain of the cyanobacterial phytochrome 1 can be expressed robustly and without cytotoxicity in human cells. We then applied this domain to induce the dimerization of two receptor tyrosine kinases—the fibroblast growth factor receptor 1 and the neurotrophin receptor trkB. This new optogenetic method was then used to activate the MAPK/ERK pathway non-invasively in mammalian tissue and in multicolor cell-signaling experiments. The light-controlled dimerizer and red-light-activated receptor tyrosine kinases will prove useful to regulate a variety of cellular processes with light. Go deep with red: The sensory domain (S) of the cyanobacterial phytochrome 1 (CPH1) was repurposed to induce the homodimerization of proteins in living cells by red light. By using this domain, light-activated protein kinases were engineered that can be activated orthogonally from many fluorescent proteins and through mammalian tissue. Pr/Pfr=red-/far-red-absorbing state of CPH1.' acknowledgement: 'A.I.-P. was supported by a Ramon Areces fellowship, and E.R. by the graduate program MolecularDrugTargets (Austrian Science Fund (FWF): W1232) and a FemTech fellowship (Austrian Research Promotion Agency: 3580812).' author: - first_name: Eva full_name: Gschaider-Reichhart, Eva id: 3FEE232A-F248-11E8-B48F-1D18A9856A87 last_name: Gschaider-Reichhart orcid: 0000-0002-7218-7738 - first_name: Álvaro full_name: Inglés Prieto, Álvaro id: 2A9DB292-F248-11E8-B48F-1D18A9856A87 last_name: Inglés Prieto orcid: 0000-0002-5409-8571 - first_name: Alexandra-Madelaine full_name: Tichy, Alexandra-Madelaine id: 29D8BB2C-F248-11E8-B48F-1D18A9856A87 last_name: Tichy - first_name: Catherine full_name: Mckenzie, Catherine id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87 last_name: Mckenzie - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Gschaider-Reichhart E, Inglés Prieto Á, Tichy A-M, Mckenzie C, Janovjak HL. A phytochrome sensory domain permits receptor activation by red light. Angewandte Chemie - International Edition. 2016;55(21):6339-6342. doi:10.1002/anie.201601736 apa: Gschaider-Reichhart, E., Inglés Prieto, Á., Tichy, A.-M., Mckenzie, C., & Janovjak, H. L. (2016). A phytochrome sensory domain permits receptor activation by red light. Angewandte Chemie - International Edition. Wiley. https://doi.org/10.1002/anie.201601736 chicago: Gschaider-Reichhart, Eva, Álvaro Inglés Prieto, Alexandra-Madelaine Tichy, Catherine Mckenzie, and Harald L Janovjak. “A Phytochrome Sensory Domain Permits Receptor Activation by Red Light.” Angewandte Chemie - International Edition. Wiley, 2016. https://doi.org/10.1002/anie.201601736. ieee: E. Gschaider-Reichhart, Á. Inglés Prieto, A.-M. Tichy, C. Mckenzie, and H. L. Janovjak, “A phytochrome sensory domain permits receptor activation by red light,” Angewandte Chemie - International Edition, vol. 55, no. 21. Wiley, pp. 6339–6342, 2016. ista: Gschaider-Reichhart E, Inglés Prieto Á, Tichy A-M, Mckenzie C, Janovjak HL. 2016. A phytochrome sensory domain permits receptor activation by red light. Angewandte Chemie - International Edition. 55(21), 6339–6342. mla: Gschaider-Reichhart, Eva, et al. “A Phytochrome Sensory Domain Permits Receptor Activation by Red Light.” Angewandte Chemie - International Edition, vol. 55, no. 21, Wiley, 2016, pp. 6339–42, doi:10.1002/anie.201601736. short: E. Gschaider-Reichhart, Á. Inglés Prieto, A.-M. Tichy, C. Mckenzie, H.L. Janovjak, Angewandte Chemie - International Edition 55 (2016) 6339–6342. date_created: 2018-12-11T11:52:02Z date_published: 2016-05-17T00:00:00Z date_updated: 2023-09-07T12:49:08Z day: '17' ddc: - '571' - '576' department: - _id: HaJa doi: 10.1002/anie.201601736 ec_funded: 1 file: - access_level: open_access checksum: 26da07960e57ac4750b54179197ce57f content_type: application/pdf creator: system date_created: 2018-12-12T10:17:03Z date_updated: 2020-07-14T12:44:55Z file_id: '5255' file_name: IST-2017-840-v1+1_reichhart.pdf file_size: 1268662 relation: main_file file_date_updated: 2020-07-14T12:44:55Z has_accepted_license: '1' intvolume: ' 55' issue: '21' language: - iso: eng month: '05' oa: 1 oa_version: Submitted Version page: 6339 - 6342 project: - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 255A6082-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets publication: Angewandte Chemie - International Edition publication_status: published publisher: Wiley publist_id: '5755' pubrep_id: '840' quality_controlled: '1' related_material: record: - id: '418' relation: dissertation_contains status: public scopus_import: 1 status: public title: A phytochrome sensory domain permits receptor activation by red light type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 55 year: '2016' ... --- _id: '1100' abstract: - lang: eng text: During metazoan development, the temporal pattern of morphogen signaling is critical for organizing cell fates in space and time. Yet, tools for temporally controlling morphogen signaling within the embryo are still scarce. Here, we developed a photoactivatable Nodal receptor to determine how the temporal pattern of Nodal signaling affects cell fate specification during zebrafish gastrulation. By using this receptor to manipulate the duration of Nodal signaling in vivo by light, we show that extended Nodal signaling within the organizer promotes prechordal plate specification and suppresses endoderm differentiation. Endoderm differentiation is suppressed by extended Nodal signaling inducing expression of the transcriptional repressor goosecoid (gsc) in prechordal plate progenitors, which in turn restrains Nodal signaling from upregulating the endoderm differentiation gene sox17 within these cells. Thus, optogenetic manipulation of Nodal signaling identifies a critical role of Nodal signaling duration for organizer cell fate specification during gastrulation. acknowledged_ssus: - _id: SSU acknowledgement: 'We are grateful to members of the C.-P.H. and H.J. labs for discussions, R. Hauschild and the different Scientific Service Units at IST Austria for technical help, M. Dravecka for performing initial experiments, A. Schier for reading an earlier version of the manuscript, K.W. Rogers for technical help, and C. Hill, A. Bruce, and L. Solnica-Krezel for sending plasmids. This work was supported by grants from the Austrian Science Foundation (FWF): (T560-B17) and (I 812-B12) to V.R. and C.-P.H., and from the European Union (EU FP7): (6275) to H.J. A.I.-P. is supported by a Ramon Areces fellowship.' author: - first_name: Keisuke full_name: Sako, Keisuke id: 3BED66BE-F248-11E8-B48F-1D18A9856A87 last_name: Sako orcid: 0000-0002-6453-8075 - first_name: Saurabh full_name: Pradhan, Saurabh last_name: Pradhan - first_name: Vanessa full_name: Barone, Vanessa id: 419EECCC-F248-11E8-B48F-1D18A9856A87 last_name: Barone orcid: 0000-0003-2676-3367 - first_name: Álvaro full_name: Inglés Prieto, Álvaro id: 2A9DB292-F248-11E8-B48F-1D18A9856A87 last_name: Inglés Prieto orcid: 0000-0002-5409-8571 - first_name: Patrick full_name: Mueller, Patrick last_name: Mueller - first_name: Verena full_name: Ruprecht, Verena id: 4D71A03A-F248-11E8-B48F-1D18A9856A87 last_name: Ruprecht orcid: 0000-0003-4088-8633 - first_name: Daniel full_name: Capek, Daniel id: 31C42484-F248-11E8-B48F-1D18A9856A87 last_name: Capek orcid: 0000-0001-5199-9940 - first_name: Sanjeev full_name: Galande, Sanjeev last_name: Galande - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Carl-Philipp J full_name: Heisenberg, Carl-Philipp J id: 39427864-F248-11E8-B48F-1D18A9856A87 last_name: Heisenberg orcid: 0000-0002-0912-4566 citation: ama: Sako K, Pradhan S, Barone V, et al. Optogenetic control of nodal signaling reveals a temporal pattern of nodal signaling regulating cell fate specification during gastrulation. Cell Reports. 2016;16(3):866-877. doi:10.1016/j.celrep.2016.06.036 apa: Sako, K., Pradhan, S., Barone, V., Inglés Prieto, Á., Mueller, P., Ruprecht, V., … Heisenberg, C.-P. J. (2016). Optogenetic control of nodal signaling reveals a temporal pattern of nodal signaling regulating cell fate specification during gastrulation. Cell Reports. Cell Press. https://doi.org/10.1016/j.celrep.2016.06.036 chicago: Sako, Keisuke, Saurabh Pradhan, Vanessa Barone, Álvaro Inglés Prieto, Patrick Mueller, Verena Ruprecht, Daniel Capek, Sanjeev Galande, Harald L Janovjak, and Carl-Philipp J Heisenberg. “Optogenetic Control of Nodal Signaling Reveals a Temporal Pattern of Nodal Signaling Regulating Cell Fate Specification during Gastrulation.” Cell Reports. Cell Press, 2016. https://doi.org/10.1016/j.celrep.2016.06.036. ieee: K. Sako et al., “Optogenetic control of nodal signaling reveals a temporal pattern of nodal signaling regulating cell fate specification during gastrulation,” Cell Reports, vol. 16, no. 3. Cell Press, pp. 866–877, 2016. ista: Sako K, Pradhan S, Barone V, Inglés Prieto Á, Mueller P, Ruprecht V, Capek D, Galande S, Janovjak HL, Heisenberg C-PJ. 2016. Optogenetic control of nodal signaling reveals a temporal pattern of nodal signaling regulating cell fate specification during gastrulation. Cell Reports. 16(3), 866–877. mla: Sako, Keisuke, et al. “Optogenetic Control of Nodal Signaling Reveals a Temporal Pattern of Nodal Signaling Regulating Cell Fate Specification during Gastrulation.” Cell Reports, vol. 16, no. 3, Cell Press, 2016, pp. 866–77, doi:10.1016/j.celrep.2016.06.036. short: K. Sako, S. Pradhan, V. Barone, Á. Inglés Prieto, P. Mueller, V. Ruprecht, D. Capek, S. Galande, H.L. Janovjak, C.-P.J. Heisenberg, Cell Reports 16 (2016) 866–877. date_created: 2018-12-11T11:50:08Z date_published: 2016-07-19T00:00:00Z date_updated: 2024-03-27T23:30:25Z day: '19' ddc: - '570' - '576' department: - _id: CaHe - _id: HaJa doi: 10.1016/j.celrep.2016.06.036 ec_funded: 1 file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:11:04Z date_updated: 2018-12-12T10:11:04Z file_id: '4857' file_name: IST-2017-754-v1+1_1-s2.0-S2211124716307768-main.pdf file_size: 3921947 relation: main_file file_date_updated: 2018-12-12T10:11:04Z has_accepted_license: '1' intvolume: ' 16' issue: '3' language: - iso: eng month: '07' oa: 1 oa_version: Published Version page: 866 - 877 project: - _id: 2529486C-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: T 560-B17 name: Cell- and Tissue Mechanics in Zebrafish Germ Layer Formation - _id: 2527D5CC-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I 812-B12 name: Cell Cortex and Germ Layer Formation in Zebrafish Gastrulation - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology publication: Cell Reports publication_status: published publisher: Cell Press publist_id: '6275' pubrep_id: '754' quality_controlled: '1' related_material: record: - id: '961' relation: dissertation_contains status: public - id: '50' relation: dissertation_contains status: public scopus_import: 1 status: public title: Optogenetic control of nodal signaling reveals a temporal pattern of nodal signaling regulating cell fate specification during gastrulation tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 16 year: '2016' ... --- _id: '1549' abstract: - lang: eng text: Nature has incorporated small photochromic molecules, colloquially termed 'photoswitches', in photoreceptor proteins to sense optical cues in photo-taxis and vision. While Nature's ability to employ light-responsive functionalities has long been recognized, it was not until recently that scientists designed, synthesized and applied synthetic photochromes to manipulate many of which open rapidly and locally in their native cell types, biological processes with the temporal and spatial resolution of light. Ion channels in particular have come to the forefront of proteins that can be put under the designer control of synthetic photochromes. Photochromic ion channel controllers are comprised of three classes, photochromic soluble ligands (PCLs), photochromic tethered ligands (PTLs) and photochromic crosslinkers (PXs), and in each class ion channel functionality is controlled through reversible changes in photochrome structure. By acting as light-dependent ion channel agonists, antagonist or modulators, photochromic controllers effectively converted a wide range of ion channels, including voltage-gated ion channels, 'leak channels', tri-, tetra- and pentameric ligand-gated ion channels, and temperaturesensitive ion channels, into man-made photoreceptors. Control by photochromes can be reversible, unlike in the case of 'caged' compounds, and non-invasive with high spatial precision, unlike pharmacology and electrical manipulation. Here, we introduce design principles of emerging photochromic molecules that act on ion channels and discuss the impact that these molecules are beginning to have on ion channel biophysics and neuronal physiology. author: - first_name: Catherine full_name: Mckenzie, Catherine id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87 last_name: Mckenzie - first_name: Inmaculada full_name: Sanchez Romero, Inmaculada id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87 last_name: Sanchez Romero - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: 'Mckenzie C, Sanchez-Romero I, Janovjak HL. Flipping the photoswitch: Ion channels under light control. In: Novel Chemical Tools to Study Ion Channel Biology. Vol 869. Advances in Experimental Medicine and Biology. Springer; 2015:101-117. doi:10.1007/978-1-4939-2845-3_6' apa: 'Mckenzie, C., Sanchez-Romero, I., & Janovjak, H. L. (2015). Flipping the photoswitch: Ion channels under light control. In Novel chemical tools to study ion channel biology (Vol. 869, pp. 101–117). Springer. https://doi.org/10.1007/978-1-4939-2845-3_6' chicago: 'Mckenzie, Catherine, Inmaculada Sanchez-Romero, and Harald L Janovjak. “Flipping the Photoswitch: Ion Channels under Light Control.” In Novel Chemical Tools to Study Ion Channel Biology, 869:101–17. Advances in Experimental Medicine and Biology. Springer, 2015. https://doi.org/10.1007/978-1-4939-2845-3_6.' ieee: 'C. Mckenzie, I. Sanchez-Romero, and H. L. Janovjak, “Flipping the photoswitch: Ion channels under light control,” in Novel chemical tools to study ion channel biology, vol. 869, Springer, 2015, pp. 101–117.' ista: 'Mckenzie C, Sanchez-Romero I, Janovjak HL. 2015.Flipping the photoswitch: Ion channels under light control. In: Novel chemical tools to study ion channel biology. vol. 869, 101–117.' mla: 'Mckenzie, Catherine, et al. “Flipping the Photoswitch: Ion Channels under Light Control.” Novel Chemical Tools to Study Ion Channel Biology, vol. 869, Springer, 2015, pp. 101–17, doi:10.1007/978-1-4939-2845-3_6.' short: C. Mckenzie, I. Sanchez-Romero, H.L. Janovjak, in:, Novel Chemical Tools to Study Ion Channel Biology, Springer, 2015, pp. 101–117. date_created: 2018-12-11T11:52:39Z date_published: 2015-09-18T00:00:00Z date_updated: 2021-01-12T06:51:32Z day: '18' ddc: - '571' - '576' department: - _id: HaJa doi: 10.1007/978-1-4939-2845-3_6 file: - access_level: open_access checksum: bd1bfdf2423a0c3b6e7cabfa8b44bc0f content_type: application/pdf creator: system date_created: 2018-12-12T10:11:02Z date_updated: 2020-07-14T12:45:01Z file_id: '4854' file_name: IST-2017-839-v1+1_mckenzie.pdf file_size: 1919655 relation: main_file file_date_updated: 2020-07-14T12:45:01Z has_accepted_license: '1' intvolume: ' 869' language: - iso: eng month: '09' oa: 1 oa_version: Submitted Version page: 101 - 117 publication: Novel chemical tools to study ion channel biology publication_identifier: isbn: - 978-1-4939-2844-6 publication_status: published publisher: Springer publist_id: '5622' pubrep_id: '839' quality_controlled: '1' scopus_import: 1 series_title: Advances in Experimental Medicine and Biology status: public title: 'Flipping the photoswitch: Ion channels under light control' type: book_chapter user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 869 year: '2015' ... --- _id: '1611' abstract: - lang: eng text: Biosensors for signaling molecules allow the study of physiological processes by bringing together the fields of protein engineering, fluorescence imaging, and cell biology. Construction of genetically encoded biosensors generally relies on the availability of a binding "core" that is both specific and stable, which can then be combined with fluorescent molecules to create a sensor. However, binding proteins with the desired properties are often not available in nature and substantial improvement to sensors can be required, particularly with regard to their durability. Ancestral protein reconstruction is a powerful protein-engineering tool able to generate highly stable and functional proteins. In this work, we sought to establish the utility of ancestral protein reconstruction to biosensor development, beginning with the construction of an l-arginine biosensor. l-arginine, as the immediate precursor to nitric oxide, is an important molecule in many physiological contexts including brain function. Using a combination of ancestral reconstruction and circular permutation, we constructed a Förster resonance energy transfer (FRET) biosensor for l-arginine (cpFLIPR). cpFLIPR displays high sensitivity and specificity, with a Kd of ∼14 μM and a maximal dynamic range of 35%. Importantly, cpFLIPR was highly robust, enabling accurate l-arginine measurement at physiological temperatures. We established that cpFLIPR is compatible with two-photon excitation fluorescence microscopy and report l-arginine concentrations in brain tissue. author: - first_name: Jason full_name: Whitfield, Jason last_name: Whitfield - first_name: William full_name: Zhang, William last_name: Zhang - first_name: Michel full_name: Herde, Michel last_name: Herde - first_name: Ben full_name: Clifton, Ben last_name: Clifton - first_name: Johanna full_name: Radziejewski, Johanna last_name: Radziejewski - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Christian full_name: Henneberger, Christian last_name: Henneberger - first_name: Colin full_name: Jackson, Colin last_name: Jackson citation: ama: Whitfield J, Zhang W, Herde M, et al. Construction of a robust and sensitive arginine biosensor through ancestral protein reconstruction. Protein Science. 2015;24(9):1412-1422. doi:10.1002/pro.2721 apa: Whitfield, J., Zhang, W., Herde, M., Clifton, B., Radziejewski, J., Janovjak, H. L., … Jackson, C. (2015). Construction of a robust and sensitive arginine biosensor through ancestral protein reconstruction. Protein Science. Wiley. https://doi.org/10.1002/pro.2721 chicago: Whitfield, Jason, William Zhang, Michel Herde, Ben Clifton, Johanna Radziejewski, Harald L Janovjak, Christian Henneberger, and Colin Jackson. “Construction of a Robust and Sensitive Arginine Biosensor through Ancestral Protein Reconstruction.” Protein Science. Wiley, 2015. https://doi.org/10.1002/pro.2721. ieee: J. Whitfield et al., “Construction of a robust and sensitive arginine biosensor through ancestral protein reconstruction,” Protein Science, vol. 24, no. 9. Wiley, pp. 1412–1422, 2015. ista: Whitfield J, Zhang W, Herde M, Clifton B, Radziejewski J, Janovjak HL, Henneberger C, Jackson C. 2015. Construction of a robust and sensitive arginine biosensor through ancestral protein reconstruction. Protein Science. 24(9), 1412–1422. mla: Whitfield, Jason, et al. “Construction of a Robust and Sensitive Arginine Biosensor through Ancestral Protein Reconstruction.” Protein Science, vol. 24, no. 9, Wiley, 2015, pp. 1412–22, doi:10.1002/pro.2721. short: J. Whitfield, W. Zhang, M. Herde, B. Clifton, J. Radziejewski, H.L. Janovjak, C. Henneberger, C. Jackson, Protein Science 24 (2015) 1412–1422. date_created: 2018-12-11T11:53:01Z date_published: 2015-09-01T00:00:00Z date_updated: 2021-01-12T06:52:00Z day: '01' department: - _id: HaJa doi: 10.1002/pro.2721 external_id: pmid: - '26061224' intvolume: ' 24' issue: '9' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4570536/ month: '09' oa: 1 oa_version: Submitted Version page: 1412 - 1422 pmid: 1 project: - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) publication: Protein Science publication_status: published publisher: Wiley publist_id: '5555' quality_controlled: '1' scopus_import: 1 status: public title: Construction of a robust and sensitive arginine biosensor through ancestral protein reconstruction type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 24 year: '2015' ... --- _id: '1867' abstract: - lang: eng text: Cultured mammalian cells essential are model systems in basic biology research, production platforms of proteins for medical use, and testbeds in synthetic biology. Flavin cofactors, in particular flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), are critical for cellular redox reactions and sense light in naturally occurring photoreceptors and optogenetic tools. Here, we quantified flavin contents of commonly used mammalian cell lines. We first compared three procedures for extraction of free and noncovalently protein-bound flavins and verified extraction using fluorescence spectroscopy. For separation, two CE methods with different BGEs were established, and detection was performed by LED-induced fluorescence with limit of detections (LODs 0.5-3.8 nM). We found that riboflavin (RF), FMN, and FAD contents varied significantly between cell lines. RF (3.1-14 amol/cell) and FAD (2.2-17.0 amol/cell) were the predominant flavins, while FMN (0.46-3.4 amol/cell) was found at markedly lower levels. Observed flavin contents agree with those previously extracted from mammalian tissues, yet reduced forms of RF were detected that were not described previously. Quantification of flavins in mammalian cell lines will allow a better understanding of cellular redox reactions and optogenetic tools. author: - first_name: Jens full_name: Hühner, Jens last_name: Hühner - first_name: Álvaro full_name: Inglés Prieto, Álvaro id: 2A9DB292-F248-11E8-B48F-1D18A9856A87 last_name: Inglés Prieto orcid: 0000-0002-5409-8571 - first_name: Christian full_name: Neusüß, Christian last_name: Neusüß - first_name: Michael full_name: Lämmerhofer, Michael last_name: Lämmerhofer - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Hühner J, Inglés Prieto Á, Neusüß C, Lämmerhofer M, Janovjak HL. Quantification of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in mammalian model cells by CE with LED-induced fluorescence detection. Electrophoresis. 2015;36(4):518-525. doi:10.1002/elps.201400451 apa: Hühner, J., Inglés Prieto, Á., Neusüß, C., Lämmerhofer, M., & Janovjak, H. L. (2015). Quantification of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in mammalian model cells by CE with LED-induced fluorescence detection. Electrophoresis. Wiley. https://doi.org/10.1002/elps.201400451 chicago: Hühner, Jens, Álvaro Inglés Prieto, Christian Neusüß, Michael Lämmerhofer, and Harald L Janovjak. “Quantification of Riboflavin, Flavin Mononucleotide, and Flavin Adenine Dinucleotide in Mammalian Model Cells by CE with LED-Induced Fluorescence Detection.” Electrophoresis. Wiley, 2015. https://doi.org/10.1002/elps.201400451. ieee: J. Hühner, Á. Inglés Prieto, C. Neusüß, M. Lämmerhofer, and H. L. Janovjak, “Quantification of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in mammalian model cells by CE with LED-induced fluorescence detection,” Electrophoresis, vol. 36, no. 4. Wiley, pp. 518–525, 2015. ista: Hühner J, Inglés Prieto Á, Neusüß C, Lämmerhofer M, Janovjak HL. 2015. Quantification of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in mammalian model cells by CE with LED-induced fluorescence detection. Electrophoresis. 36(4), 518–525. mla: Hühner, Jens, et al. “Quantification of Riboflavin, Flavin Mononucleotide, and Flavin Adenine Dinucleotide in Mammalian Model Cells by CE with LED-Induced Fluorescence Detection.” Electrophoresis, vol. 36, no. 4, Wiley, 2015, pp. 518–25, doi:10.1002/elps.201400451. short: J. Hühner, Á. Inglés Prieto, C. Neusüß, M. Lämmerhofer, H.L. Janovjak, Electrophoresis 36 (2015) 518–525. date_created: 2018-12-11T11:54:26Z date_published: 2015-02-01T00:00:00Z date_updated: 2021-01-12T06:53:43Z day: '01' department: - _id: HaJa doi: 10.1002/elps.201400451 ec_funded: 1 intvolume: ' 36' issue: '4' language: - iso: eng month: '02' oa_version: None page: 518 - 525 project: - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) publication: Electrophoresis publication_status: published publisher: Wiley publist_id: '5230' pubrep_id: '836' quality_controlled: '1' scopus_import: 1 status: public title: Quantification of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in mammalian model cells by CE with LED-induced fluorescence detection type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 36 year: '2015' ... --- _id: '1678' abstract: - lang: eng text: High-throughput live-cell screens are intricate elements of systems biology studies and drug discovery pipelines. Here, we demonstrate an optogenetics-assisted method that avoids the need for chemical activators and reporters, reduces the number of operational steps and increases information content in a cell-based small-molecule screen against human protein kinases, including an orphan receptor tyrosine kinase. This blueprint for all-optical screening can be adapted to many drug targets and cellular processes. acknowledgement: 'This work was supported by grants from the European Union Seventh Framework Programme (CIG-303564 to H.J. and ERC-StG-311166 to S.M.B.N.), the Human Frontier Science Program (RGY0084_2012 to H.J.) and the Herzfelder Foundation (to M.G.). A.I.-P. was supported by a Ramon Areces fellowship, and E.R. by the graduate program MolecularDrugTargets (Austrian Science Fund (FWF): W 1232) and a FemTech fellowship (3580812 Austrian Research Promotion Agency).' author: - first_name: Álvaro full_name: Inglés Prieto, Álvaro id: 2A9DB292-F248-11E8-B48F-1D18A9856A87 last_name: Inglés Prieto orcid: 0000-0002-5409-8571 - first_name: Eva full_name: Gschaider-Reichhart, Eva id: 3FEE232A-F248-11E8-B48F-1D18A9856A87 last_name: Gschaider-Reichhart orcid: 0000-0002-7218-7738 - first_name: Markus full_name: Muellner, Markus last_name: Muellner - first_name: Matthias full_name: Nowak, Matthias id: 30845DAA-F248-11E8-B48F-1D18A9856A87 last_name: Nowak - first_name: Sebastian full_name: Nijman, Sebastian last_name: Nijman - first_name: Michael full_name: Grusch, Michael last_name: Grusch - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Inglés Prieto Á, Gschaider-Reichhart E, Muellner M, et al. Light-assisted small-molecule screening against protein kinases. Nature Chemical Biology. 2015;11(12):952-954. doi:10.1038/nchembio.1933 apa: Inglés Prieto, Á., Gschaider-Reichhart, E., Muellner, M., Nowak, M., Nijman, S., Grusch, M., & Janovjak, H. L. (2015). Light-assisted small-molecule screening against protein kinases. Nature Chemical Biology. Nature Publishing Group. https://doi.org/10.1038/nchembio.1933 chicago: Inglés Prieto, Álvaro, Eva Gschaider-Reichhart, Markus Muellner, Matthias Nowak, Sebastian Nijman, Michael Grusch, and Harald L Janovjak. “Light-Assisted Small-Molecule Screening against Protein Kinases.” Nature Chemical Biology. Nature Publishing Group, 2015. https://doi.org/10.1038/nchembio.1933. ieee: Á. Inglés Prieto et al., “Light-assisted small-molecule screening against protein kinases,” Nature Chemical Biology, vol. 11, no. 12. Nature Publishing Group, pp. 952–954, 2015. ista: Inglés Prieto Á, Gschaider-Reichhart E, Muellner M, Nowak M, Nijman S, Grusch M, Janovjak HL. 2015. Light-assisted small-molecule screening against protein kinases. Nature Chemical Biology. 11(12), 952–954. mla: Inglés Prieto, Álvaro, et al. “Light-Assisted Small-Molecule Screening against Protein Kinases.” Nature Chemical Biology, vol. 11, no. 12, Nature Publishing Group, 2015, pp. 952–54, doi:10.1038/nchembio.1933. short: Á. Inglés Prieto, E. Gschaider-Reichhart, M. Muellner, M. Nowak, S. Nijman, M. Grusch, H.L. Janovjak, Nature Chemical Biology 11 (2015) 952–954. date_created: 2018-12-11T11:53:25Z date_published: 2015-10-12T00:00:00Z date_updated: 2023-09-07T12:49:09Z day: '12' ddc: - '571' department: - _id: HaJa - _id: LifeSc doi: 10.1038/nchembio.1933 ec_funded: 1 file: - access_level: open_access checksum: e9fb251dfcb7cd209b83f17867e61321 content_type: application/pdf creator: system date_created: 2018-12-12T10:10:51Z date_updated: 2020-07-14T12:45:12Z file_id: '4842' file_name: IST-2017-837-v1+1_ingles-prieto.pdf file_size: 1308364 relation: main_file file_date_updated: 2020-07-14T12:45:12Z has_accepted_license: '1' intvolume: ' 11' issue: '12' language: - iso: eng month: '10' oa: 1 oa_version: Submitted Version page: 952 - 954 project: - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) - _id: 255A6082-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets publication: Nature Chemical Biology publication_status: published publisher: Nature Publishing Group publist_id: '5471' pubrep_id: '837' quality_controlled: '1' related_material: record: - id: '418' relation: dissertation_contains status: public scopus_import: 1 status: public title: Light-assisted small-molecule screening against protein kinases type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 11 year: '2015' ... --- _id: '1844' abstract: - lang: eng text: 'Local protein interactions ("molecular context" effects) dictate amino acid replacements and can be described in terms of site-specific, energetic preferences for any different amino acid. It has been recently debated whether these preferences remain approximately constant during evolution or whether, due to coevolution of sites, they change strongly. Such research highlights an unresolved and fundamental issue with far-reaching implications for phylogenetic analysis and molecular evolution modeling. Here, we take advantage of the recent availability of phenotypically supported laboratory resurrections of Precambrian thioredoxins and β-lactamases to experimentally address the change of site-specific amino acid preferences over long geological timescales. Extensive mutational analyses support the notion that evolutionary adjustment to a new amino acid may occur, but to a large extent this is insufficient to erase the primitive preference for amino acid replacements. Generally, site-specific amino acid preferences appear to remain conserved throughout evolutionary history despite local sequence divergence. We show such preference conservation to be readily understandable in molecular terms and we provide crystallographic evidence for an intriguing structural-switch mechanism: Energetic preference for an ancestral amino acid in a modern protein can be linked to reorganization upon mutation to the ancestral local structure around the mutated site. Finally, we point out that site-specific preference conservation naturally leads to one plausible evolutionary explanation for the existence of intragenic global suppressor mutations.' author: - first_name: Valeria full_name: Risso, Valeria last_name: Risso - first_name: Fadia full_name: Manssour Triedo, Fadia last_name: Manssour Triedo - first_name: Asuncion full_name: Delgado Delgado, Asuncion last_name: Delgado Delgado - first_name: Rocio full_name: Arco, Rocio last_name: Arco - first_name: Alicia full_name: Barroso Deljesús, Alicia last_name: Barroso Deljesús - first_name: Álvaro full_name: Inglés Prieto, Álvaro id: 2A9DB292-F248-11E8-B48F-1D18A9856A87 last_name: Inglés Prieto orcid: 0000-0002-5409-8571 - first_name: Raquel full_name: Godoy Ruiz, Raquel last_name: Godoy Ruiz - first_name: Josè full_name: Gavira, Josè last_name: Gavira - first_name: Eric full_name: Gaucher, Eric last_name: Gaucher - first_name: Beatriz full_name: Ibarra Molero, Beatriz last_name: Ibarra Molero - first_name: Jose full_name: Sánchez Ruiz, Jose last_name: Sánchez Ruiz citation: ama: Risso V, Manssour Triedo F, Delgado Delgado A, et al. Mutational studies on resurrected ancestral proteins reveal conservation of site-specific amino acid preferences throughout evolutionary history. Molecular Biology and Evolution. 2014;32(2):440-455. doi:10.1093/molbev/msu312 apa: Risso, V., Manssour Triedo, F., Delgado Delgado, A., Arco, R., Barroso Deljesús, A., Inglés Prieto, Á., … Sánchez Ruiz, J. (2014). Mutational studies on resurrected ancestral proteins reveal conservation of site-specific amino acid preferences throughout evolutionary history. Molecular Biology and Evolution. Oxford University Press. https://doi.org/10.1093/molbev/msu312 chicago: Risso, Valeria, Fadia Manssour Triedo, Asuncion Delgado Delgado, Rocio Arco, Alicia Barroso Deljesús, Álvaro Inglés Prieto, Raquel Godoy Ruiz, et al. “Mutational Studies on Resurrected Ancestral Proteins Reveal Conservation of Site-Specific Amino Acid Preferences throughout Evolutionary History.” Molecular Biology and Evolution. Oxford University Press, 2014. https://doi.org/10.1093/molbev/msu312. ieee: V. Risso et al., “Mutational studies on resurrected ancestral proteins reveal conservation of site-specific amino acid preferences throughout evolutionary history,” Molecular Biology and Evolution, vol. 32, no. 2. Oxford University Press, pp. 440–455, 2014. ista: Risso V, Manssour Triedo F, Delgado Delgado A, Arco R, Barroso Deljesús A, Inglés Prieto Á, Godoy Ruiz R, Gavira J, Gaucher E, Ibarra Molero B, Sánchez Ruiz J. 2014. Mutational studies on resurrected ancestral proteins reveal conservation of site-specific amino acid preferences throughout evolutionary history. Molecular Biology and Evolution. 32(2), 440–455. mla: Risso, Valeria, et al. “Mutational Studies on Resurrected Ancestral Proteins Reveal Conservation of Site-Specific Amino Acid Preferences throughout Evolutionary History.” Molecular Biology and Evolution, vol. 32, no. 2, Oxford University Press, 2014, pp. 440–55, doi:10.1093/molbev/msu312. short: V. Risso, F. Manssour Triedo, A. Delgado Delgado, R. Arco, A. Barroso Deljesús, Á. Inglés Prieto, R. Godoy Ruiz, J. Gavira, E. Gaucher, B. Ibarra Molero, J. Sánchez Ruiz, Molecular Biology and Evolution 32 (2014) 440–455. date_created: 2018-12-11T11:54:19Z date_published: 2014-11-12T00:00:00Z date_updated: 2021-01-12T06:53:34Z day: '12' ddc: - '571' department: - _id: HaJa doi: 10.1093/molbev/msu312 file: - access_level: open_access checksum: 06215318e66be8f3e0c33abb07e9d3da content_type: application/pdf creator: system date_created: 2018-12-12T10:16:56Z date_updated: 2020-07-14T12:45:19Z file_id: '5247' file_name: IST-2016-430-v1+1_Mol_Biol_Evol-2015-Risso-440-55.pdf file_size: 1545246 relation: main_file file_date_updated: 2020-07-14T12:45:19Z has_accepted_license: '1' intvolume: ' 32' issue: '2' language: - iso: eng license: https://creativecommons.org/licenses/by-nc/4.0/ month: '11' oa: 1 oa_version: Published Version page: 440 - 455 publication: Molecular Biology and Evolution publication_status: published publisher: Oxford University Press publist_id: '5257' pubrep_id: '430' quality_controlled: '1' scopus_import: 1 status: public title: Mutational studies on resurrected ancestral proteins reveal conservation of site-specific amino acid preferences throughout evolutionary history tmp: image: /images/cc_by_nc.png legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) short: CC BY-NC (4.0) type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 32 year: '2014' ... --- _id: '2032' abstract: - lang: eng text: As light-based control of fundamental signaling pathways is becoming a reality, the field of optogenetics is rapidly moving beyond neuroscience. We have recently developed receptor tyrosine kinases that are activated by light and control cell proliferation, epithelial–mesenchymal transition, and angiogenic sprouting—cell behaviors central to cancer progression. article_number: e964045 author: - first_name: Álvaro full_name: Inglés Prieto, Álvaro id: 2A9DB292-F248-11E8-B48F-1D18A9856A87 last_name: Inglés Prieto orcid: 0000-0002-5409-8571 - first_name: Eva full_name: Gschaider-Reichhart, Eva id: 3FEE232A-F248-11E8-B48F-1D18A9856A87 last_name: Gschaider-Reichhart orcid: 0000-0002-7218-7738 - first_name: Karin full_name: Schelch, Karin last_name: Schelch - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Michael full_name: Grusch, Michael last_name: Grusch citation: ama: 'Inglés Prieto Á, Gschaider-Reichhart E, Schelch K, Janovjak HL, Grusch M. The optogenetic promise for oncology: Episode I. Molecular and Cellular Oncology. 2014;1(4). doi:10.4161/23723548.2014.964045' apa: 'Inglés Prieto, Á., Gschaider-Reichhart, E., Schelch, K., Janovjak, H. L., & Grusch, M. (2014). The optogenetic promise for oncology: Episode I. Molecular and Cellular Oncology. Taylor & Francis. https://doi.org/10.4161/23723548.2014.964045' chicago: 'Inglés Prieto, Álvaro, Eva Gschaider-Reichhart, Karin Schelch, Harald L Janovjak, and Michael Grusch. “The Optogenetic Promise for Oncology: Episode I.” Molecular and Cellular Oncology. Taylor & Francis, 2014. https://doi.org/10.4161/23723548.2014.964045.' ieee: 'Á. Inglés Prieto, E. Gschaider-Reichhart, K. Schelch, H. L. Janovjak, and M. Grusch, “The optogenetic promise for oncology: Episode I,” Molecular and Cellular Oncology, vol. 1, no. 4. Taylor & Francis, 2014.' ista: 'Inglés Prieto Á, Gschaider-Reichhart E, Schelch K, Janovjak HL, Grusch M. 2014. The optogenetic promise for oncology: Episode I. Molecular and Cellular Oncology. 1(4), e964045.' mla: 'Inglés Prieto, Álvaro, et al. “The Optogenetic Promise for Oncology: Episode I.” Molecular and Cellular Oncology, vol. 1, no. 4, e964045, Taylor & Francis, 2014, doi:10.4161/23723548.2014.964045.' short: Á. Inglés Prieto, E. Gschaider-Reichhart, K. Schelch, H.L. Janovjak, M. Grusch, Molecular and Cellular Oncology 1 (2014). date_created: 2018-12-11T11:55:19Z date_published: 2014-12-31T00:00:00Z date_updated: 2021-01-12T06:54:51Z day: '31' ddc: - '570' department: - _id: HaJa doi: 10.4161/23723548.2014.964045 file: - access_level: open_access checksum: 44e17ad40577ab46eb602e88a8b0b8fd content_type: application/pdf creator: kschuh date_created: 2019-05-16T13:39:11Z date_updated: 2020-07-14T12:45:26Z file_id: '6464' file_name: 2014_Taylor_Alvaro.pdf file_size: 1765933 relation: main_file file_date_updated: 2020-07-14T12:45:26Z has_accepted_license: '1' intvolume: ' 1' issue: '4' language: - iso: eng month: '12' oa: 1 oa_version: Published Version publication: Molecular and Cellular Oncology publication_status: published publisher: Taylor & Francis publist_id: '5040' quality_controlled: '1' scopus_import: 1 status: public title: 'The optogenetic promise for oncology: Episode I' tmp: image: /images/cc_by_nc.png legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) short: CC BY-NC (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 1 year: '2014' ... --- _id: '2084' abstract: - lang: eng text: Receptor tyrosine kinases (RTKs) are a large family of cell surface receptors that sense growth factors and hormones and regulate a variety of cell behaviours in health and disease. Contactless activation of RTKs with spatial and temporal precision is currently not feasible. Here, we generated RTKs that are insensitive to endogenous ligands but can be selectively activated by low-intensity blue light. We screened light-oxygen-voltage (LOV)-sensing domains for their ability to activate RTKs by light-activated dimerization. Incorporation of LOV domains found in aureochrome photoreceptors of stramenopiles resulted in robust activation of the fibroblast growth factor receptor 1 (FGFR1), epidermal growth factor receptor (EGFR) and rearranged during transfection (RET). In human cancer and endothelial cells, light induced cellular signalling with spatial and temporal precision. Furthermore, light faithfully mimicked complex mitogenic and morphogenic cell behaviour induced by growth factors. RTKs under optical control (Opto-RTKs) provide a powerful optogenetic approach to actuate cellular signals and manipulate cell behaviour. acknowledgement: European Union Seventh Framework Programme; Human Frontier Science Program; Oesterreichische Nationalbank Anniversary Fund 14211; Austrian Research Promotion Agency; FemTech author: - first_name: Michael full_name: Grusch, Michael last_name: Grusch - first_name: Karin full_name: Schelch, Karin last_name: Schelch - first_name: Robert full_name: Riedler, Robert last_name: Riedler - first_name: Eva full_name: Gschaider-Reichhart, Eva id: 3FEE232A-F248-11E8-B48F-1D18A9856A87 last_name: Gschaider-Reichhart orcid: 0000-0002-7218-7738 - first_name: Christopher full_name: Differ, Christopher last_name: Differ - first_name: Walter full_name: Berger, Walter last_name: Berger - first_name: Álvaro full_name: Inglés Prieto, Álvaro id: 2A9DB292-F248-11E8-B48F-1D18A9856A87 last_name: Inglés Prieto orcid: 0000-0002-5409-8571 - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Grusch M, Schelch K, Riedler R, et al. Spatio-temporally precise activation of engineered receptor tyrosine kinases by light. EMBO Journal. 2014;33(15):1713-1726. doi:10.15252/embj.201387695 apa: Grusch, M., Schelch, K., Riedler, R., Gschaider-Reichhart, E., Differ, C., Berger, W., … Janovjak, H. L. (2014). Spatio-temporally precise activation of engineered receptor tyrosine kinases by light. EMBO Journal. Wiley-Blackwell. https://doi.org/10.15252/embj.201387695 chicago: Grusch, Michael, Karin Schelch, Robert Riedler, Eva Gschaider-Reichhart, Christopher Differ, Walter Berger, Álvaro Inglés Prieto, and Harald L Janovjak. “Spatio-Temporally Precise Activation of Engineered Receptor Tyrosine Kinases by Light.” EMBO Journal. Wiley-Blackwell, 2014. https://doi.org/10.15252/embj.201387695. ieee: M. Grusch et al., “Spatio-temporally precise activation of engineered receptor tyrosine kinases by light,” EMBO Journal, vol. 33, no. 15. Wiley-Blackwell, pp. 1713–1726, 2014. ista: Grusch M, Schelch K, Riedler R, Gschaider-Reichhart E, Differ C, Berger W, Inglés Prieto Á, Janovjak HL. 2014. Spatio-temporally precise activation of engineered receptor tyrosine kinases by light. EMBO Journal. 33(15), 1713–1726. mla: Grusch, Michael, et al. “Spatio-Temporally Precise Activation of Engineered Receptor Tyrosine Kinases by Light.” EMBO Journal, vol. 33, no. 15, Wiley-Blackwell, 2014, pp. 1713–26, doi:10.15252/embj.201387695. short: M. Grusch, K. Schelch, R. Riedler, E. Gschaider-Reichhart, C. Differ, W. Berger, Á. Inglés Prieto, H.L. Janovjak, EMBO Journal 33 (2014) 1713–1726. date_created: 2018-12-11T11:55:37Z date_published: 2014-07-01T00:00:00Z date_updated: 2023-09-07T12:49:09Z day: '01' department: - _id: HaJa doi: 10.15252/embj.201387695 intvolume: ' 33' issue: '15' language: - iso: eng main_file_link: - open_access: '1' url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4194103/ month: '07' oa: 1 oa_version: Submitted Version page: 1713 - 1726 publication: EMBO Journal publication_status: published publisher: Wiley-Blackwell publist_id: '4953' quality_controlled: '1' related_material: record: - id: '418' relation: dissertation_contains status: public scopus_import: 1 status: public title: Spatio-temporally precise activation of engineered receptor tyrosine kinases by light type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 33 year: '2014' ... --- _id: '2471' abstract: - lang: eng text: The impact of disulfide bonds on protein stability goes beyond simple equilibrium thermodynamics effects associated with the conformational entropy of the unfolded state. Indeed, disulfide crosslinks may play a role in the prevention of dysfunctional association and strongly affect the rates of irreversible enzyme inactivation, highly relevant in biotechnological applications. While these kinetic-stability effects remain poorly understood, by analogy with proposed mechanisms for processes of protein aggregation and fibrillogenesis, we propose that they may be determined by the properties of sparsely-populated, partially-unfolded intermediates. Here we report the successful design, on the basis of high temperature molecular-dynamics simulations, of six thermodynamically and kinetically stabilized variants of phytase from Citrobacter braakii (a biotechnologically important enzyme) with one, two or three engineered disulfides. Activity measurements and 3D crystal structure determination demonstrate that the engineered crosslinks do not cause dramatic alterations in the native structure. The inactivation kinetics for all the variants displays a strongly non-Arrhenius temperature dependence, with the time-scale for the irreversible denaturation process reaching a minimum at a given temperature within the range of the denaturation transition. We show this striking feature to be a signature of a key role played by a partially unfolded, intermediate state/ensemble. Energetic and mutational analyses confirm that the intermediate is highly unfolded (akin to a proposed critical intermediate in the misfolding of the prion protein), a result that explains the observed kinetic stabilization. Our results provide a rationale for the kinetic-stability consequences of disulfide-crosslink engineering and an experimental methodology to arrive at energetic/structural descriptions of the sparsely populated and elusive intermediates that play key roles in irreversible protein denaturation. article_number: e70013 author: - first_name: Inmaculada full_name: Sanchez Romero, Inmaculada id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87 last_name: Sanchez Romero - first_name: Antonio full_name: Ariza, Antonio last_name: Ariza - first_name: Keith full_name: Wilson, Keith last_name: Wilson - first_name: Michael full_name: Skjøt, Michael last_name: Skjøt - first_name: Jesper full_name: Vind, Jesper last_name: Vind - first_name: Leonardo full_name: De Maria, Leonardo last_name: De Maria - first_name: Lars full_name: Skov, Lars last_name: Skov - first_name: Jose full_name: Sánchez Ruiz, Jose last_name: Sánchez Ruiz citation: ama: Sanchez-Romero I, Ariza A, Wilson K, et al. Mechanism of protein kinetic stabilization by engineered disulfide crosslinks. PLoS One. 2013;8(7). doi:10.1371/journal.pone.0070013 apa: Sanchez-Romero, I., Ariza, A., Wilson, K., Skjøt, M., Vind, J., De Maria, L., … Sánchez Ruiz, J. (2013). Mechanism of protein kinetic stabilization by engineered disulfide crosslinks. PLoS One. Public Library of Science. https://doi.org/10.1371/journal.pone.0070013 chicago: Sanchez-Romero, Inmaculada, Antonio Ariza, Keith Wilson, Michael Skjøt, Jesper Vind, Leonardo De Maria, Lars Skov, and Jose Sánchez Ruiz. “Mechanism of Protein Kinetic Stabilization by Engineered Disulfide Crosslinks.” PLoS One. Public Library of Science, 2013. https://doi.org/10.1371/journal.pone.0070013. ieee: I. Sanchez-Romero et al., “Mechanism of protein kinetic stabilization by engineered disulfide crosslinks,” PLoS One, vol. 8, no. 7. Public Library of Science, 2013. ista: Sanchez-Romero I, Ariza A, Wilson K, Skjøt M, Vind J, De Maria L, Skov L, Sánchez Ruiz J. 2013. Mechanism of protein kinetic stabilization by engineered disulfide crosslinks. PLoS One. 8(7), e70013. mla: Sanchez-Romero, Inmaculada, et al. “Mechanism of Protein Kinetic Stabilization by Engineered Disulfide Crosslinks.” PLoS One, vol. 8, no. 7, e70013, Public Library of Science, 2013, doi:10.1371/journal.pone.0070013. short: I. Sanchez-Romero, A. Ariza, K. Wilson, M. Skjøt, J. Vind, L. De Maria, L. Skov, J. Sánchez Ruiz, PLoS One 8 (2013). date_created: 2018-12-11T11:57:51Z date_published: 2013-07-30T00:00:00Z date_updated: 2021-01-12T06:57:41Z day: '30' ddc: - '570' department: - _id: HaJa doi: 10.1371/journal.pone.0070013 file: - access_level: open_access checksum: c0c96cc76ed7ef0d036a31a7e33c9a37 content_type: application/pdf creator: system date_created: 2018-12-12T10:15:07Z date_updated: 2020-07-14T12:45:41Z file_id: '5124' file_name: IST-2016-414-v1+1_journal.pone.0070013.pdf file_size: 1323666 relation: main_file file_date_updated: 2020-07-14T12:45:41Z has_accepted_license: '1' intvolume: ' 8' issue: '7' language: - iso: eng month: '07' oa: 1 oa_version: Published Version publication: PLoS One publication_status: published publisher: Public Library of Science publist_id: '4430' pubrep_id: '414' quality_controlled: '1' scopus_import: 1 status: public title: Mechanism of protein kinetic stabilization by engineered disulfide crosslinks tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2013' ... --- _id: '2857' abstract: - lang: eng text: In the vibrant field of optogenetics, optics and genetic targeting are combined to commandeer cellular functions, such as the neuronal action potential, by optically stimulating light-sensitive ion channels expressed in the cell membrane. One broadly applicable manifestation of this approach are covalently attached photochromic tethered ligands (PTLs) that allow activating ligand-gated ion channels with outstanding spatial and temporal resolution. Here, we describe all steps towards the successful development and application of PTL-gated ion channels in cell lines and primary cells. The basis for these experiments forms a combination of molecular modeling, genetic engineering, cell culture, and electrophysiology. The light-gated glutamate receptor (LiGluR), which consists of the PTL-functionalized GluK2 receptor, serves as a model. alternative_title: - MIMB author: - first_name: Stephanie full_name: Szobota, Stephanie last_name: Szobota - first_name: Catherine full_name: Mckenzie, Catherine id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87 last_name: Mckenzie - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 citation: ama: Szobota S, Mckenzie C, Janovjak HL. Optical control of ligand-gated ion channels. Methods in Molecular Biology. 2013;998:417-435. doi:10.1007/978-1-62703-351-0_32 apa: Szobota, S., Mckenzie, C., & Janovjak, H. L. (2013). Optical control of ligand-gated ion channels. Methods in Molecular Biology. Springer. https://doi.org/10.1007/978-1-62703-351-0_32 chicago: Szobota, Stephanie, Catherine Mckenzie, and Harald L Janovjak. “Optical Control of Ligand-Gated Ion Channels.” Methods in Molecular Biology. Springer, 2013. https://doi.org/10.1007/978-1-62703-351-0_32. ieee: S. Szobota, C. Mckenzie, and H. L. Janovjak, “Optical control of ligand-gated ion channels,” Methods in Molecular Biology, vol. 998. Springer, pp. 417–435, 2013. ista: Szobota S, Mckenzie C, Janovjak HL. 2013. Optical control of ligand-gated ion channels. Methods in Molecular Biology. 998, 417–435. mla: Szobota, Stephanie, et al. “Optical Control of Ligand-Gated Ion Channels.” Methods in Molecular Biology, vol. 998, Springer, 2013, pp. 417–35, doi:10.1007/978-1-62703-351-0_32. short: S. Szobota, C. Mckenzie, H.L. Janovjak, Methods in Molecular Biology 998 (2013) 417–435. date_created: 2018-12-11T11:59:57Z date_published: 2013-02-22T00:00:00Z date_updated: 2021-01-12T07:00:17Z day: '22' ddc: - '570' department: - _id: HaJa doi: 10.1007/978-1-62703-351-0_32 ec_funded: 1 file: - access_level: open_access checksum: 1701f0d989f27ddac471b19a894ec0d1 content_type: application/pdf creator: system date_created: 2018-12-12T10:12:34Z date_updated: 2020-07-14T12:45:51Z file_id: '4952' file_name: IST-2017-834-v1+1_szobota.pdf file_size: 336734 relation: main_file file_date_updated: 2020-07-14T12:45:51Z has_accepted_license: '1' intvolume: ' 998' language: - iso: eng month: '02' oa: 1 oa_version: Submitted Version page: 417 - 435 project: - _id: 255BFFFA-B435-11E9-9278-68D0E5697425 grant_number: RGY0084/2012 name: In situ real-time imaging of neurotransmitter signaling using designer optical sensors (HFSP Young Investigator) - _id: 25548C20-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '303564' name: Microbial Ion Channels for Synthetic Neurobiology publication: Methods in Molecular Biology publication_status: published publisher: Springer publist_id: '3932' pubrep_id: '834' quality_controlled: '1' scopus_import: 1 status: public title: Optical control of ligand-gated ion channels type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 998 year: '2013' ... --- _id: '2856' abstract: - lang: eng text: 'G protein–coupled receptors (GPCRs), the largest family of membrane signaling proteins, respond to neurotransmitters, hormones and small environmental molecules. The neuronal function of many GPCRs has been difficult to resolve because of an inability to gate them with subtype specificity, spatial precision, speed and reversibility. To address this, we developed an approach for opto-chemical engineering of native GPCRs. We applied this to the metabotropic glutamate receptors (mGluRs) to generate light-agonized and light-antagonized mGluRs (LimGluRs). The light-agonized LimGluR2, on which we focused, was fast, bistable and supported multiple rounds of on/off switching. Light gated two of the primary neuronal functions of mGluR2: suppression of excitability and inhibition of neurotransmitter release. We found that the light-antagonized tool LimGluR2-block was able to manipulate negative feedback of synaptically released glutamate on transmitter release. We generalized the optical control to two additional family members: mGluR3 and mGluR6. This system worked in rodent brain slices and in zebrafish in vivo, where we found that mGluR2 modulated the threshold for escape behavior. These light-gated mGluRs pave the way for determining the roles of mGluRs in synaptic plasticity, memory and disease.' acknowledgement: National Science Foundation grants CHE-0233882 and CHE-0840505 (to the College of Chemistry at the University of California, Berkeley), a postdoctoral fellowship of the European Molecular Biology Organization (H.J.) author: - first_name: Joshua full_name: Levitz, Joshua last_name: Levitz - first_name: Carlos full_name: Pantoja, Carlos last_name: Pantoja - first_name: Benjamin full_name: Gaub, Benjamin last_name: Gaub - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Andreas full_name: Reiner, Andreas last_name: Reiner - first_name: Adam full_name: Hoagland, Adam last_name: Hoagland - first_name: David full_name: Schoppik, David last_name: Schoppik - first_name: Brian full_name: Kane, Brian last_name: Kane - first_name: Philipp full_name: Stawski, Philipp last_name: Stawski - first_name: Alexander full_name: Schier, Alexander last_name: Schier - first_name: Dirk full_name: Trauner, Dirk last_name: Trauner - first_name: Ehud full_name: Isacoff, Ehud last_name: Isacoff citation: ama: Levitz J, Pantoja C, Gaub B, et al. Optical control of metabotropic glutamate receptors. Nature Neuroscience. 2013;16:507-516. doi:10.1038/nn.3346 apa: Levitz, J., Pantoja, C., Gaub, B., Janovjak, H. L., Reiner, A., Hoagland, A., … Isacoff, E. (2013). Optical control of metabotropic glutamate receptors. Nature Neuroscience. Nature Publishing Group. https://doi.org/10.1038/nn.3346 chicago: Levitz, Joshua, Carlos Pantoja, Benjamin Gaub, Harald L Janovjak, Andreas Reiner, Adam Hoagland, David Schoppik, et al. “Optical Control of Metabotropic Glutamate Receptors.” Nature Neuroscience. Nature Publishing Group, 2013. https://doi.org/10.1038/nn.3346. ieee: J. Levitz et al., “Optical control of metabotropic glutamate receptors,” Nature Neuroscience, vol. 16. Nature Publishing Group, pp. 507–516, 2013. ista: Levitz J, Pantoja C, Gaub B, Janovjak HL, Reiner A, Hoagland A, Schoppik D, Kane B, Stawski P, Schier A, Trauner D, Isacoff E. 2013. Optical control of metabotropic glutamate receptors. Nature Neuroscience. 16, 507–516. mla: Levitz, Joshua, et al. “Optical Control of Metabotropic Glutamate Receptors.” Nature Neuroscience, vol. 16, Nature Publishing Group, 2013, pp. 507–16, doi:10.1038/nn.3346. short: J. Levitz, C. Pantoja, B. Gaub, H.L. Janovjak, A. Reiner, A. Hoagland, D. Schoppik, B. Kane, P. Stawski, A. Schier, D. Trauner, E. Isacoff, Nature Neuroscience 16 (2013) 507–516. date_created: 2018-12-11T11:59:57Z date_published: 2013-03-03T00:00:00Z date_updated: 2021-01-12T07:00:16Z day: '03' department: - _id: HaJa doi: 10.1038/nn.3346 external_id: pmid: - '23455609' intvolume: ' 16' language: - iso: eng main_file_link: - open_access: '1' url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3681425/ month: '03' oa: 1 oa_version: Submitted Version page: 507 - 516 pmid: 1 publication: Nature Neuroscience publication_status: published publisher: Nature Publishing Group publist_id: '3936' quality_controlled: '1' scopus_import: 1 status: public title: Optical control of metabotropic glutamate receptors type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 16 year: '2013' ... --- _id: '505' abstract: - lang: eng text: Alkyd resins are polyesters containing unsaturated fatty acids that are used as binding agents in paints and coatings. Chemical drying of these polyesters is based on heavy metal catalyzed cross-linking of the unsaturated fatty acid moieties. Among the heavy-metal catalysts, cobalt complexes are the most effective, yet they have been proven to be carcinogenic. Therefore, strategies to replace the cobalt-based catalyst by environmentally friendlier and less toxic alternatives are under development. Here, we demonstrate for the first time that a laccase-mediator system can effectively replace the heavy-metal catalyst and cross-link alkyd resins. Interestingly, the biocatalytic reaction does not only work in aqueous media, but also in a solid film, where enzyme diffusion is limited. Within the catalytic cycle, the mediator oxidizes the alkyd resin and is regenerated by the laccase, which is uniformly distributed within the drying film as evidenced by confocal laser scanning microscopy. During gradual build-up of molecular weight, there is a concomitant decrease of the oxygen content in the film. A new optical sensor to follow oxygen consumption during the cross-linking reaction was developed and validated with state of the art techniques. A remarkable feature is the low sample amount required, which allows faster screening of new catalysts. acknowledgement: "This study was performed within the Austrian Centre of Indus-\r\ntrial Biotechnology ACIB and the COST Action 868. This work\r\nhas been supported by the Federal Ministry of Economy,\r\nFamily and Youth (BMWFJ), the Federal Ministry of Tra\r\nffi\r\nc,\r\nInnovation and Technology (bmvit), the Styrian Business\r\nPromotion Agency SFG, the Standortagentur Tirol and ZIT\r\n–\r\nTechnology Agency of the \ City of Vienna through the\r\nCOMET-Funding Program managed by the Austrian Research\r\nPromotion Agency FFG. Dr Massimiliano Cardinale (Institute of\r\nEnvironmental Biotechnology, TU Graz) is gratefully acknowl-\r\nedged for technical support with the CLSM measurements." author: - first_name: Katrin full_name: Greimel, Katrin last_name: Greimel - first_name: Veronika full_name: Perz, Veronika last_name: Perz - first_name: Klaus full_name: Koren, Klaus id: 382FBD6A-F248-11E8-B48F-1D18A9856A87 last_name: Koren - first_name: Roland full_name: Feola, Roland last_name: Feola - first_name: Armin full_name: Temel, Armin last_name: Temel - first_name: Christian full_name: Sohar, Christian last_name: Sohar - first_name: Enrique full_name: Herrero Acero, Enrique last_name: Herrero Acero - first_name: Ingo full_name: Klimant, Ingo last_name: Klimant - first_name: Georg full_name: Guebitz, Georg last_name: Guebitz citation: ama: 'Greimel K, Perz V, Koren K, et al. Banning toxic heavy-metal catalysts from paints: Enzymatic cross-linking of alkyd resins. Green Chemistry. 2013;15(2):381-388. doi:10.1039/c2gc36666e' apa: 'Greimel, K., Perz, V., Koren, K., Feola, R., Temel, A., Sohar, C., … Guebitz, G. (2013). Banning toxic heavy-metal catalysts from paints: Enzymatic cross-linking of alkyd resins. Green Chemistry. Royal Society of Chemistry. https://doi.org/10.1039/c2gc36666e' chicago: 'Greimel, Katrin, Veronika Perz, Klaus Koren, Roland Feola, Armin Temel, Christian Sohar, Enrique Herrero Acero, Ingo Klimant, and Georg Guebitz. “Banning Toxic Heavy-Metal Catalysts from Paints: Enzymatic Cross-Linking of Alkyd Resins.” Green Chemistry. Royal Society of Chemistry, 2013. https://doi.org/10.1039/c2gc36666e.' ieee: 'K. Greimel et al., “Banning toxic heavy-metal catalysts from paints: Enzymatic cross-linking of alkyd resins,” Green Chemistry, vol. 15, no. 2. Royal Society of Chemistry, pp. 381–388, 2013.' ista: 'Greimel K, Perz V, Koren K, Feola R, Temel A, Sohar C, Herrero Acero E, Klimant I, Guebitz G. 2013. Banning toxic heavy-metal catalysts from paints: Enzymatic cross-linking of alkyd resins. Green Chemistry. 15(2), 381–388.' mla: 'Greimel, Katrin, et al. “Banning Toxic Heavy-Metal Catalysts from Paints: Enzymatic Cross-Linking of Alkyd Resins.” Green Chemistry, vol. 15, no. 2, Royal Society of Chemistry, 2013, pp. 381–88, doi:10.1039/c2gc36666e.' short: K. Greimel, V. Perz, K. Koren, R. Feola, A. Temel, C. Sohar, E. Herrero Acero, I. Klimant, G. Guebitz, Green Chemistry 15 (2013) 381–388. date_created: 2018-12-11T11:46:51Z date_published: 2013-02-01T00:00:00Z date_updated: 2021-01-12T08:01:11Z day: '01' department: - _id: HaJa doi: 10.1039/c2gc36666e intvolume: ' 15' issue: '2' language: - iso: eng month: '02' oa_version: None page: 381 - 388 publication: Green Chemistry publication_status: published publisher: Royal Society of Chemistry publist_id: '7313' quality_controlled: '1' scopus_import: 1 status: public title: 'Banning toxic heavy-metal catalysts from paints: Enzymatic cross-linking of alkyd resins' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 15 year: '2013' ... --- _id: '10896' abstract: - lang: eng text: Under physiological conditions the brain, via the purine salvage pathway, reuses the preformed purine bases hypoxanthine, derived from ATP degradation, and adenine (Ade), derived from polyamine synthesis, to restore its ATP pool. However, the massive degradation of ATP during ischemia, although providing valuable neuroprotective adenosine, results in the accumulation and loss of diffusible purine metabolites and thereby leads to a protracted reduction in the post-ischemic ATP pool size. In vivo, this may both limit the ability to deploy ATP-dependent reparative mechanisms and reduce the subsequent availability of adenosine, whilst in brain slices results in tissue with substantially lower levels of ATP than in vivo. In the present review, we describe the mechanisms by which brain tissue replenishes its ATP, how this can be improved with the clinically tolerated chemicals D-ribose and adenine, and the functional, and potential therapeutic, implications of doing so. acknowledgement: We are grateful to Research into Ageing/Ageing UK and The Dunhill Trust for funding SzN’s graduate studies, and to Prof Nicholas Dale for his valuable input. article_processing_charge: No author: - first_name: Stephanie full_name: zur Nedden, Stephanie id: 3C77F464-F248-11E8-B48F-1D18A9856A87 last_name: zur Nedden - first_name: Alexander S. full_name: Doney, Alexander S. last_name: Doney - first_name: Bruno G. full_name: Frenguelli, Bruno G. last_name: Frenguelli citation: ama: 'zur Nedden S, Doney AS, Frenguelli BG. The double-edged sword: Gaining Adenosine at the expense of ATP. How to balance the books. In: Masino S, Boison D, eds. Adenosine. 1st ed. New York: Springer; 2012:109-129. doi:10.1007/978-1-4614-3903-5_6' apa: 'zur Nedden, S., Doney, A. S., & Frenguelli, B. G. (2012). The double-edged sword: Gaining Adenosine at the expense of ATP. How to balance the books. In S. Masino & D. Boison (Eds.), Adenosine (1st ed., pp. 109–129). New York: Springer. https://doi.org/10.1007/978-1-4614-3903-5_6' chicago: 'Nedden, Stephanie zur, Alexander S. Doney, and Bruno G. Frenguelli. “The Double-Edged Sword: Gaining Adenosine at the Expense of ATP. How to Balance the Books.” In Adenosine, edited by Susan Masino and Detlev Boison, 1st ed., 109–29. New York: Springer, 2012. https://doi.org/10.1007/978-1-4614-3903-5_6.' ieee: 'S. zur Nedden, A. S. Doney, and B. G. Frenguelli, “The double-edged sword: Gaining Adenosine at the expense of ATP. How to balance the books,” in Adenosine, 1st ed., S. Masino and D. Boison, Eds. New York: Springer, 2012, pp. 109–129.' ista: 'zur Nedden S, Doney AS, Frenguelli BG. 2012.The double-edged sword: Gaining Adenosine at the expense of ATP. How to balance the books. In: Adenosine. , 109–129.' mla: 'zur Nedden, Stephanie, et al. “The Double-Edged Sword: Gaining Adenosine at the Expense of ATP. How to Balance the Books.” Adenosine, edited by Susan Masino and Detlev Boison, 1st ed., Springer, 2012, pp. 109–29, doi:10.1007/978-1-4614-3903-5_6.' short: S. zur Nedden, A.S. Doney, B.G. Frenguelli, in:, S. Masino, D. Boison (Eds.), Adenosine, 1st ed., Springer, New York, 2012, pp. 109–129. date_created: 2022-03-21T07:16:12Z date_published: 2012-07-23T00:00:00Z date_updated: 2022-06-21T11:51:58Z day: '23' department: - _id: HaJa doi: 10.1007/978-1-4614-3903-5_6 edition: '1' editor: - first_name: Susan full_name: Masino, Susan last_name: Masino - first_name: Detlev full_name: Boison, Detlev last_name: Boison language: - iso: eng month: '07' oa_version: None page: 109-129 place: New York publication: Adenosine publication_identifier: eisbn: - '9781461439035' isbn: - '9781461439028' publication_status: published publisher: Springer quality_controlled: '1' scopus_import: '1' status: public title: 'The double-edged sword: Gaining Adenosine at the expense of ATP. How to balance the books' type: book_chapter user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2012' ... --- _id: '3405' abstract: - lang: eng text: Glutamate is the major excitatory neurotransmitter in the mammalian central nervous system and gates non-selective cation channels. The origins of glutamate receptors are not well understood as they differ structurally and functionally from simple bacterial ligand-gated ion channels. Here we report the discovery of an ionotropic glutamate receptor that combines the typical eukaryotic domain architecture with the 'TXVGYG' signature sequence of the selectivity filter found in K+ channels. This receptor exhibits functional properties intermediate between bacterial and eukaryotic glutamate-gated ion channels, suggesting a link in the evolution of ionotropic glutamate receptors. author: - first_name: Harald L full_name: Janovjak, Harald L id: 33BA6C30-F248-11E8-B48F-1D18A9856A87 last_name: Janovjak orcid: 0000-0002-8023-9315 - first_name: Guillaume full_name: Sandoz, Guillaume last_name: Sandoz - first_name: Ehud full_name: Isacoff, Ehud last_name: Isacoff citation: ama: Janovjak HL, Sandoz G, Isacoff E. Modern ionotropic glutamate receptor with a K+ selectivity signature sequence. Nature Communications. 2011;2(232):1-6. doi:10.1038/ncomms1231 apa: Janovjak, H. L., Sandoz, G., & Isacoff, E. (2011). Modern ionotropic glutamate receptor with a K+ selectivity signature sequence. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms1231 chicago: Janovjak, Harald L, Guillaume Sandoz, and Ehud Isacoff. “Modern Ionotropic Glutamate Receptor with a K+ Selectivity Signature Sequence.” Nature Communications. Nature Publishing Group, 2011. https://doi.org/10.1038/ncomms1231. ieee: H. L. Janovjak, G. Sandoz, and E. Isacoff, “Modern ionotropic glutamate receptor with a K+ selectivity signature sequence,” Nature Communications, vol. 2, no. 232. Nature Publishing Group, pp. 1–6, 2011. ista: Janovjak HL, Sandoz G, Isacoff E. 2011. Modern ionotropic glutamate receptor with a K+ selectivity signature sequence. Nature Communications. 2(232), 1–6. mla: Janovjak, Harald L., et al. “Modern Ionotropic Glutamate Receptor with a K+ Selectivity Signature Sequence.” Nature Communications, vol. 2, no. 232, Nature Publishing Group, 2011, pp. 1–6, doi:10.1038/ncomms1231. short: H.L. Janovjak, G. Sandoz, E. Isacoff, Nature Communications 2 (2011) 1–6. date_created: 2018-12-11T12:03:09Z date_published: 2011-03-08T00:00:00Z date_updated: 2021-01-12T07:43:15Z day: '08' ddc: - '570' - '571' department: - _id: HaJa doi: 10.1038/ncomms1231 file: - access_level: open_access checksum: 6b68d65aadd97c18d663eb117a0a9d35 content_type: application/pdf creator: system date_created: 2018-12-12T10:11:36Z date_updated: 2020-07-14T12:46:12Z file_id: '4891' file_name: IST-2017-832-v1+1_janovjak.pdf file_size: 387654 relation: main_file file_date_updated: 2020-07-14T12:46:12Z has_accepted_license: '1' intvolume: ' 2' issue: '232' language: - iso: eng month: '03' oa: 1 oa_version: Submitted Version page: 1 - 6 publication: Nature Communications publication_status: published publisher: Nature Publishing Group publist_id: '2997' pubrep_id: '832' quality_controlled: '1' scopus_import: 1 status: public title: Modern ionotropic glutamate receptor with a K+ selectivity signature sequence type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 2 year: '2011' ...