---
_id: '15084'
abstract:
- lang: eng
text: "GABAB receptor (GBR) activation inhibits neurotransmitter release in axon
terminals in the brain, except in medial habenula (MHb) terminals, which show
robust potentiation. However, mechanisms underlying this enigmatic potentiation
remain elusive. Here, we report that GBR activation on MHb terminals induces an
activity-dependent transition from a facilitating, tonic to a depressing, phasic
neurotransmitter release mode. This transition is accompanied by a 4.1-fold increase
in readily releasable vesicle pool (RRP) size and a 3.5-fold increase of docked
synaptic vesicles (SVs) at the presynaptic active zone (AZ). Strikingly, the depressing
phasic release exhibits looser coupling distance than the tonic release. Furthermore,
the tonic and phasic release are selectively affected by deletion of synaptoporin
(SPO) and Ca\r\n 2+\r\n -dependent
activator protein for secretion 2 (CAPS2), respectively. SPO modulates augmentation,
the short-term plasticity associated with tonic release, and CAPS2 retains the
increased RRP for initial responses in phasic response trains. The cytosolic protein
CAPS2 showed a SV-associated distribution similar to the vesicular transmembrane
protein SPO, and they were colocalized in the same terminals. We developed the
“Flash and Freeze-fracture” method, and revealed the release of SPO-associated
vesicles in both tonic and phasic modes and activity-dependent recruitment of
CAPS2 to the AZ during phasic release, which lasted several minutes. Overall,
these results indicate that GBR activation translocates CAPS2 to the AZ along
with the fusion of CAPS2-associated SVs, contributing to persistency of the RRP
increase. Thus, we identified structural and molecular mechanisms underlying tonic
and phasic neurotransmitter release and their transition by GBR activation in
MHb terminals."
acknowledged_ssus:
- _id: M-Shop
- _id: PreCl
- _id: EM-Fac
acknowledgement: We thank Erwin Neher and Ipe Ninan for critical comments on the manuscript.
This project has received funding from the European Research Council (ERC) and European
Commission, under the European Union’s Horizon 2020 research and innovation program
(ERC grant agreement no. 694539 to R.S. and the Marie Skłodowska-Curie grant agreement
no. 665385 to C.Ö.). This study was supported by the Cooperative Study Program of
Center for Animal Resources and Collaborative Study of NINS. We thank Kohgaku Eguchi
for statistical analysis, Yu Kasugai for additional EM imaging, Robert Beattie for
the design of the slice recovery chamber for Flash and Freeze experiments, Todor
Asenov from the ISTA machine shop for custom part preparations for high-pressure
freezing, the ISTA preclinical facility for animal caretaking, and the ISTA EM facilities
for technical support.
article_number: e2301449121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Peter
full_name: Koppensteiner, Peter
id: 3B8B25A8-F248-11E8-B48F-1D18A9856A87
last_name: Koppensteiner
orcid: 0000-0002-3509-1948
- first_name: Pradeep
full_name: Bhandari, Pradeep
id: 45EDD1BC-F248-11E8-B48F-1D18A9856A87
last_name: Bhandari
orcid: 0000-0003-0863-4481
- first_name: Hüseyin C
full_name: Önal, Hüseyin C
id: 4659D740-F248-11E8-B48F-1D18A9856A87
last_name: Önal
orcid: 0000-0002-2771-2011
- first_name: Carolina
full_name: Borges Merjane, Carolina
id: 4305C450-F248-11E8-B48F-1D18A9856A87
last_name: Borges Merjane
orcid: 0000-0003-0005-401X
- first_name: Elodie
full_name: Le Monnier, Elodie
id: 3B59276A-F248-11E8-B48F-1D18A9856A87
last_name: Le Monnier
- first_name: Utsa
full_name: Roy, Utsa
id: 4d26cf11-5355-11ee-ae5a-eb05e255b9b2
last_name: Roy
- first_name: Yukihiro
full_name: Nakamura, Yukihiro
last_name: Nakamura
- first_name: Tetsushi
full_name: Sadakata, Tetsushi
last_name: Sadakata
- first_name: Makoto
full_name: Sanbo, Makoto
last_name: Sanbo
- first_name: Masumi
full_name: Hirabayashi, Masumi
last_name: Hirabayashi
- first_name: JeongSeop
full_name: Rhee, JeongSeop
last_name: Rhee
- first_name: Nils
full_name: Brose, Nils
last_name: Brose
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
- first_name: Ryuichi
full_name: Shigemoto, Ryuichi
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
citation:
ama: Koppensteiner P, Bhandari P, Önal C, et al. GABAB receptors induce phasic release
from medial habenula terminals through activity-dependent recruitment of release-ready
vesicles. Proceedings of the National Academy of Sciences. 2024;121(8).
doi:10.1073/pnas.2301449121
apa: Koppensteiner, P., Bhandari, P., Önal, C., Borges Merjane, C., Le Monnier,
E., Roy, U., … Shigemoto, R. (2024). GABAB receptors induce phasic release from
medial habenula terminals through activity-dependent recruitment of release-ready
vesicles. Proceedings of the National Academy of Sciences. Proceedings
of the National Academy of Sciences. https://doi.org/10.1073/pnas.2301449121
chicago: Koppensteiner, Peter, Pradeep Bhandari, Cihan Önal, Carolina Borges Merjane,
Elodie Le Monnier, Utsa Roy, Yukihiro Nakamura, et al. “GABAB Receptors Induce
Phasic Release from Medial Habenula Terminals through Activity-Dependent Recruitment
of Release-Ready Vesicles.” Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences, 2024. https://doi.org/10.1073/pnas.2301449121.
ieee: P. Koppensteiner et al., “GABAB receptors induce phasic release from
medial habenula terminals through activity-dependent recruitment of release-ready
vesicles,” Proceedings of the National Academy of Sciences, vol. 121, no.
8. Proceedings of the National Academy of Sciences, 2024.
ista: Koppensteiner P, Bhandari P, Önal C, Borges Merjane C, Le Monnier E, Roy U,
Nakamura Y, Sadakata T, Sanbo M, Hirabayashi M, Rhee J, Brose N, Jonas PM, Shigemoto
R. 2024. GABAB receptors induce phasic release from medial habenula terminals
through activity-dependent recruitment of release-ready vesicles. Proceedings
of the National Academy of Sciences. 121(8), e2301449121.
mla: Koppensteiner, Peter, et al. “GABAB Receptors Induce Phasic Release from Medial
Habenula Terminals through Activity-Dependent Recruitment of Release-Ready Vesicles.”
Proceedings of the National Academy of Sciences, vol. 121, no. 8, e2301449121,
Proceedings of the National Academy of Sciences, 2024, doi:10.1073/pnas.2301449121.
short: P. Koppensteiner, P. Bhandari, C. Önal, C. Borges Merjane, E. Le Monnier,
U. Roy, Y. Nakamura, T. Sadakata, M. Sanbo, M. Hirabayashi, J. Rhee, N. Brose,
P.M. Jonas, R. Shigemoto, Proceedings of the National Academy of Sciences 121
(2024).
date_created: 2024-03-05T09:23:55Z
date_published: 2024-02-20T00:00:00Z
date_updated: 2024-03-12T13:44:18Z
day: '20'
ddc:
- '570'
department:
- _id: RySh
- _id: PeJo
doi: 10.1073/pnas.2301449121
ec_funded: 1
external_id:
pmid:
- '38346189'
file:
- access_level: open_access
checksum: b25b2a057c266ff317a48b0d54d6fc8a
content_type: application/pdf
creator: dernst
date_created: 2024-03-12T13:42:42Z
date_updated: 2024-03-12T13:42:42Z
file_id: '15110'
file_name: 2024_PNAS_Koppensteiner.pdf
file_size: 13648221
relation: main_file
success: 1
file_date_updated: 2024-03-12T13:42:42Z
has_accepted_license: '1'
intvolume: ' 121'
issue: '8'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25CA28EA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '694539'
name: 'In situ analysis of single channel subunit composition in neurons: physiological
implication in synaptic plasticity and behaviour'
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/neuronal-insights-flash-and-freeze-fracture/
record:
- id: '13173'
relation: research_data
status: public
status: public
title: GABAB receptors induce phasic release from medial habenula terminals through
activity-dependent recruitment of release-ready vesicles
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
_id: '15083'
abstract:
- lang: eng
text: 'Direct reciprocity is a powerful mechanism for cooperation in social
dilemmas. The very logic of reciprocity, however, seems to require that individuals
are symmetric, and that everyone has the same means to influence each others’
payoffs. Yet in many applications, individuals are asymmetric. Herein, we study
the effect of asymmetry in linear public good games. Individuals may differ in
their endowments (their ability to contribute to a public good) and in their productivities
(how effective their contributions are). Given the individuals’ productivities,
we ask which allocation of endowments is optimal for cooperation. To this end,
we consider two notions of optimality. The first notion focuses on the resilience
of cooperation. The respective endowment distribution ensures that full cooperation
is feasible even under the most adverse conditions. The second notion focuses
on efficiency. The corresponding endowment distribution maximizes group welfare.
Using analytical methods, we fully characterize these two endowment distributions.
This analysis reveals that both optimality notions favor some endowment inequality:
More productive players ought to get higher endowments. Yet the two notions disagree
on how unequal endowments are supposed to be. A focus on resilience results in
less inequality. With additional simulations, we show that the optimal endowment
allocation needs to account for both the resilience and the efficiency of cooperation.'
acknowledgement: 'This work was supported by the European Research Council CoG 863818
(ForM-SMArt) (to K.C.) and the European Research Council Starting Grant 850529:
E-DIRECT (to C.H.), the European Union’s Horizon 2020 research and innovation program
under the Marie Skłodowska-Curie Grant Agreement #754411 and the French Agence Nationale
de la Recherche (under the Investissement d’Avenir Programme, ANR-17-EURE-0010)
(to M.K.).'
article_number: e2315558121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Valentin
full_name: Hübner, Valentin
id: 2c8aa207-dc7d-11ea-9b2f-f22972ecd910
last_name: Hübner
- first_name: Manuel
full_name: Staab, Manuel
last_name: Staab
- first_name: Christian
full_name: Hilbe, Christian
id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87
last_name: Hilbe
orcid: 0000-0001-5116-955X
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Maria
full_name: Kleshnina, Maria
last_name: Kleshnina
citation:
ama: Hübner V, Staab M, Hilbe C, Chatterjee K, Kleshnina M. Efficiency and resilience
of cooperation in asymmetric social dilemmas. Proceedings of the National Academy
of Sciences. 2024;121(10). doi:10.1073/pnas.2315558121
apa: Hübner, V., Staab, M., Hilbe, C., Chatterjee, K., & Kleshnina, M. (2024).
Efficiency and resilience of cooperation in asymmetric social dilemmas. Proceedings
of the National Academy of Sciences. Proceedings of the National Academy of
Sciences. https://doi.org/10.1073/pnas.2315558121
chicago: Hübner, Valentin, Manuel Staab, Christian Hilbe, Krishnendu Chatterjee,
and Maria Kleshnina. “Efficiency and Resilience of Cooperation in Asymmetric Social
Dilemmas.” Proceedings of the National Academy of Sciences. Proceedings
of the National Academy of Sciences, 2024. https://doi.org/10.1073/pnas.2315558121.
ieee: V. Hübner, M. Staab, C. Hilbe, K. Chatterjee, and M. Kleshnina, “Efficiency
and resilience of cooperation in asymmetric social dilemmas,” Proceedings of
the National Academy of Sciences, vol. 121, no. 10. Proceedings of the National
Academy of Sciences, 2024.
ista: Hübner V, Staab M, Hilbe C, Chatterjee K, Kleshnina M. 2024. Efficiency and
resilience of cooperation in asymmetric social dilemmas. Proceedings of the National
Academy of Sciences. 121(10), e2315558121.
mla: Hübner, Valentin, et al. “Efficiency and Resilience of Cooperation in Asymmetric
Social Dilemmas.” Proceedings of the National Academy of Sciences, vol.
121, no. 10, e2315558121, Proceedings of the National Academy of Sciences, 2024,
doi:10.1073/pnas.2315558121.
short: V. Hübner, M. Staab, C. Hilbe, K. Chatterjee, M. Kleshnina, Proceedings of
the National Academy of Sciences 121 (2024).
date_created: 2024-03-05T09:18:49Z
date_published: 2024-03-05T00:00:00Z
date_updated: 2024-03-12T13:29:25Z
day: '05'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1073/pnas.2315558121
ec_funded: 1
external_id:
pmid:
- '38408249'
file:
- access_level: open_access
checksum: 068520e3efd4d008bb9177e8aedb7d22
content_type: application/pdf
creator: dernst
date_created: 2024-03-12T13:12:22Z
date_updated: 2024-03-12T13:12:22Z
file_id: '15109'
file_name: 2024_PNAS_Huebner.pdf
file_size: 2203220
relation: main_file
success: 1
file_date_updated: 2024-03-12T13:12:22Z
has_accepted_license: '1'
intvolume: ' 121'
issue: '10'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
call_identifier: H2020
grant_number: '863818'
name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/what-math-tells-us-about-social-dilemmas/
record:
- id: '15108'
relation: research_data
status: public
status: public
title: Efficiency and resilience of cooperation in asymmetric social dilemmas
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
_id: '14478'
abstract:
- lang: eng
text: Entire chromosomes are typically only transmitted vertically from one generation
to the next. The horizontal transfer of such chromosomes has long been considered
improbable, yet gained recent support in several pathogenic fungi where it may
affect the fitness or host specificity. To date, it is unknown how these transfers
occur, how common they are and whether they can occur between different species.
In this study, we show multiple independent instances of horizontal transfers
of the same accessory chromosome between two distinct strains of the asexual entomopathogenic
fungusMetarhizium robertsiiduring experimental co-infection
of its insect host, the Argentine ant. Notably, only the one chromosome – but
no other – was transferred from the donor to the recipient strain. The recipient
strain, now harboring the accessory chromosome, exhibited a competitive advantage
under certain host conditions. By phylogenetic analysis we further demonstrate
that the same accessory chromosome was horizontally transferred in a natural environment
betweenM. robertsiiand another congeneric insect pathogen,M.
guizhouense. Hence horizontal chromosome transfer is not limited
to the observed frequent events within species during experimental infections
but also occurs naturally across species. The transferred accessory chromosome
contains genes that might be involved in its preferential horizontal transfer,
encoding putative histones and histone-modifying enzymes, but also putative virulence
factors that may support its establishment. Our study reveals that both intra-
and interspecies horizontal transfer of entire chromosomes is more frequent than
previously assumed, likely representing a not uncommon mechanism for gene exchange.Significance
StatementThe enormous success of bacterial pathogens has
been attributed to their ability to exchange genetic material between one another.
Similarly, in eukaryotes, horizontal transfer of genetic material allowed the
spread of virulence factors across species. The horizontal transfer of whole chromosomes
could be an important pathway for such exchange of genetic material, but little
is known about the origin of transferable chromosomes and how frequently they
are exchanged. Here, we show that the transfer of accessory chromosomes - chromosomes
that are non-essential but may provide fitness benefits - is common during fungal
co-infections and is even possible between distant pathogenic species, highlighting
the importance of horizontal gene transfer via chromosome transfer also for the
evolution and function of eukaryotic pathogens.
acknowledgement: We thank Bernhardt Steinwender, Jorgen Eilenberg, and Nicolai V.
Meyling for the fungal strains. We further thank Chengshu Wang for providing the
short sequencing reads for M. guizhouense ARESF977 he used for his published genome
assembly, and Kristian Ullrich for help in the bioinformatics analysis for methylation
pattern in Nanopore reads, and the VBC and the Max Planck Society for the use of
their sequencing centers. We thank Barbara Milutinović and Hinrich Schulenburg for
discussion, and Tal Dagan and Jens Rolff for comments on a previous version of the
manuscript. Fig. 1A was created with BioRender.com. This study received funding
by the European Research Council under the European Union’s Horizon 2020 Research
and Innovation Programme (No. 771402; EPIDEMICSonCHIP) to S.C. and by the German
Research Foundation (DFG grant HA9263/1-1) to M.H.
article_number: e2316284121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Michael
full_name: Habig, Michael
last_name: Habig
- first_name: Anna V
full_name: Grasse, Anna V
id: 406F989C-F248-11E8-B48F-1D18A9856A87
last_name: Grasse
- first_name: Judith
full_name: Müller, Judith
last_name: Müller
- first_name: Eva H.
full_name: Stukenbrock, Eva H.
last_name: Stukenbrock
- first_name: Hanna
full_name: Leitner, Hanna
id: 8fc5c6f6-5903-11ec-abad-c83f046253e7
last_name: Leitner
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
citation:
ama: Habig M, Grasse AV, Müller J, Stukenbrock EH, Leitner H, Cremer S. Frequent
horizontal chromosome transfer between asexual fungal insect pathogens. Proceedings
of the National Academy of Sciences of the United States of America. 2024;121(11).
doi:10.1073/pnas.2316284121
apa: Habig, M., Grasse, A. V., Müller, J., Stukenbrock, E. H., Leitner, H., &
Cremer, S. (2024). Frequent horizontal chromosome transfer between asexual fungal
insect pathogens. Proceedings of the National Academy of Sciences of the United
States of America. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2316284121
chicago: Habig, Michael, Anna V Grasse, Judith Müller, Eva H. Stukenbrock, Hanna
Leitner, and Sylvia Cremer. “Frequent Horizontal Chromosome Transfer between Asexual
Fungal Insect Pathogens.” Proceedings of the National Academy of Sciences of
the United States of America. Proceedings of the National Academy of Sciences,
2024. https://doi.org/10.1073/pnas.2316284121.
ieee: M. Habig, A. V. Grasse, J. Müller, E. H. Stukenbrock, H. Leitner, and S. Cremer,
“Frequent horizontal chromosome transfer between asexual fungal insect pathogens,”
Proceedings of the National Academy of Sciences of the United States of America,
vol. 121, no. 11. Proceedings of the National Academy of Sciences, 2024.
ista: Habig M, Grasse AV, Müller J, Stukenbrock EH, Leitner H, Cremer S. 2024. Frequent
horizontal chromosome transfer between asexual fungal insect pathogens. Proceedings
of the National Academy of Sciences of the United States of America. 121(11),
e2316284121.
mla: Habig, Michael, et al. “Frequent Horizontal Chromosome Transfer between Asexual
Fungal Insect Pathogens.” Proceedings of the National Academy of Sciences of
the United States of America, vol. 121, no. 11, e2316284121, Proceedings of
the National Academy of Sciences, 2024, doi:10.1073/pnas.2316284121.
short: M. Habig, A.V. Grasse, J. Müller, E.H. Stukenbrock, H. Leitner, S. Cremer,
Proceedings of the National Academy of Sciences of the United States of America
121 (2024).
date_created: 2023-10-31T13:30:00Z
date_published: 2024-03-12T00:00:00Z
date_updated: 2024-03-19T09:07:20Z
day: '12'
ddc:
- '570'
department:
- _id: SyCr
doi: 10.1073/pnas.2316284121
ec_funded: 1
external_id:
pmid:
- '38442176'
file:
- access_level: open_access
checksum: f5e871db617b682edc71fcd08670dc81
content_type: application/pdf
creator: dernst
date_created: 2024-03-19T09:02:57Z
date_updated: 2024-03-19T09:02:57Z
file_id: '15124'
file_name: 2024_PNAS_Habig.pdf
file_size: 5750361
relation: main_file
success: 1
file_date_updated: 2024-03-19T09:02:57Z
has_accepted_license: '1'
intvolume: ' 121'
issue: '11'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2649B4DE-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '771402'
name: Epidemics in ant societies on a chip
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Frequent horizontal chromosome transfer between asexual fungal insect pathogens
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
_id: '15116'
abstract:
- lang: eng
text: Water is known to play an important role in collagen self-assembly, but it
is still largely unclear how water–collagen interactions influence the assembly
process and determine the fibril network properties. Here, we use the H2O/D2O
isotope effect on the hydrogen-bond strength in water to investigate the role
of hydration in collagen self-assembly. We dissolve collagen in H2O and D2O and
compare the growth kinetics and the structure of the collagen assemblies formed
in these water isotopomers. Surprisingly, collagen assembly occurs ten times faster
in D2O than in H2O, and collagen in D2O self-assembles into much thinner fibrils,
that form a more inhomogeneous and softer network, with a fourfold reduction in
elastic modulus when compared to H2O. Combining spectroscopic measurements with
atomistic simulations, we show that collagen in D2O is less hydrated than in H2O.
This partial dehydration lowers the enthalpic penalty for water removal and reorganization
at the collagen–water interface, increasing the self-assembly rate and the number
of nucleation centers, leading to thinner fibrils and a softer network. Coarse-grained
simulations show that the acceleration in the initial nucleation rate can be reproduced
by the enhancement of electrostatic interactions. These results show that water
acts as a mediator between collagen monomers, by modulating their interactions
so as to optimize the assembly process and, thus, the final network properties.
We believe that isotopically modulating the hydration of proteins can be a valuable
method to investigate the role of water in protein structural dynamics and protein
self-assembly.
acknowledgement: We thank Dr. Steven Roeters (Aarhus University), Dr. Federica Burla,
and Prof. Dr. Mischa Bonn (Institute for Polymer Research, Mainz, Germany) for the
useful discussions. We thank Dr. Wim Roeterdink and Michiel Hilberts for technical
support. G.H.K. acknowledges financial support by the “BaSyC Building a Synthetic
Cell” Gravitation grant (024.003.019) of The Netherlands Ministry of Education,
Culture and Science (OCW) and The Netherlands Organization for Scientific Research
and from NWO grant OCENW.GROOT.2019.022. This work has received support from the
National Research Foundation of Korea (NRF), funded by the Ministry of Science and
ICT, under Grant No. 2022K1A3A1A04062969. This publication is part of the project
(with Project Number VI.Veni.212.240) of the research programme NWO Talent Programme
Veni 2021, which is financed by the Dutch Research Council (NWO). I.M.I. acknowledges
support from the Sectorplan Bèta & Techniek of the Dutch Government and the Dementia
Research - Synapsis Foundation Switzerland. A.Š. and K.K. acknowledge support from
Royal Society and European Research Council Starting Grant. G. Giubertoni kindly
thanks to the Care4Bones community and the Collagen Café community for reminding
that we do not own the knowledge we create, but it is, rather, a collective resource
intended for the advancement of human progress.
article_number: e2313162121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Giulia
full_name: Giubertoni, Giulia
last_name: Giubertoni
- first_name: Liru
full_name: Feng, Liru
last_name: Feng
- first_name: Kevin
full_name: Klein, Kevin
last_name: Klein
- first_name: Guido
full_name: Giannetti, Guido
last_name: Giannetti
- first_name: Luco
full_name: Rutten, Luco
last_name: Rutten
- first_name: Yeji
full_name: Choi, Yeji
last_name: Choi
- first_name: Anouk
full_name: Van Der Net, Anouk
last_name: Van Der Net
- first_name: Gerard
full_name: Castro-Linares, Gerard
last_name: Castro-Linares
- first_name: Federico
full_name: Caporaletti, Federico
last_name: Caporaletti
- first_name: Dimitra
full_name: Micha, Dimitra
last_name: Micha
- first_name: Johannes
full_name: Hunger, Johannes
last_name: Hunger
- first_name: Antoine
full_name: Deblais, Antoine
last_name: Deblais
- first_name: Daniel
full_name: Bonn, Daniel
last_name: Bonn
- first_name: Nico
full_name: Sommerdijk, Nico
last_name: Sommerdijk
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
- first_name: Ioana M.
full_name: Ilie, Ioana M.
last_name: Ilie
- first_name: Gijsje H.
full_name: Koenderink, Gijsje H.
last_name: Koenderink
- first_name: Sander
full_name: Woutersen, Sander
last_name: Woutersen
citation:
ama: Giubertoni G, Feng L, Klein K, et al. Elucidating the role of water in collagen
self-assembly by isotopically modulating collagen hydration. Proceedings of
the National Academy of Sciences of the United States of America. 2024;121(11).
doi:10.1073/pnas.2313162121
apa: Giubertoni, G., Feng, L., Klein, K., Giannetti, G., Rutten, L., Choi, Y., …
Woutersen, S. (2024). Elucidating the role of water in collagen self-assembly
by isotopically modulating collagen hydration. Proceedings of the National
Academy of Sciences of the United States of America. Proceedings of the National
Academy of Sciences. https://doi.org/10.1073/pnas.2313162121
chicago: Giubertoni, Giulia, Liru Feng, Kevin Klein, Guido Giannetti, Luco Rutten,
Yeji Choi, Anouk Van Der Net, et al. “Elucidating the Role of Water in Collagen
Self-Assembly by Isotopically Modulating Collagen Hydration.” Proceedings of
the National Academy of Sciences of the United States of America. Proceedings
of the National Academy of Sciences, 2024. https://doi.org/10.1073/pnas.2313162121.
ieee: G. Giubertoni et al., “Elucidating the role of water in collagen self-assembly
by isotopically modulating collagen hydration,” Proceedings of the National
Academy of Sciences of the United States of America, vol. 121, no. 11. Proceedings
of the National Academy of Sciences, 2024.
ista: Giubertoni G, Feng L, Klein K, Giannetti G, Rutten L, Choi Y, Van Der Net
A, Castro-Linares G, Caporaletti F, Micha D, Hunger J, Deblais A, Bonn D, Sommerdijk
N, Šarić A, Ilie IM, Koenderink GH, Woutersen S. 2024. Elucidating the role of
water in collagen self-assembly by isotopically modulating collagen hydration.
Proceedings of the National Academy of Sciences of the United States of America.
121(11), e2313162121.
mla: Giubertoni, Giulia, et al. “Elucidating the Role of Water in Collagen Self-Assembly
by Isotopically Modulating Collagen Hydration.” Proceedings of the National
Academy of Sciences of the United States of America, vol. 121, no. 11, e2313162121,
Proceedings of the National Academy of Sciences, 2024, doi:10.1073/pnas.2313162121.
short: G. Giubertoni, L. Feng, K. Klein, G. Giannetti, L. Rutten, Y. Choi, A. Van
Der Net, G. Castro-Linares, F. Caporaletti, D. Micha, J. Hunger, A. Deblais, D.
Bonn, N. Sommerdijk, A. Šarić, I.M. Ilie, G.H. Koenderink, S. Woutersen, Proceedings
of the National Academy of Sciences of the United States of America 121 (2024).
date_created: 2024-03-17T23:00:57Z
date_published: 2024-03-12T00:00:00Z
date_updated: 2024-03-19T11:41:32Z
day: '12'
ddc:
- '550'
department:
- _id: AnSa
doi: 10.1073/pnas.2313162121
external_id:
pmid:
- '38451946'
file:
- access_level: open_access
checksum: a3f7fdc29dd9f0a38952ab4e322b3a05
content_type: application/pdf
creator: dernst
date_created: 2024-03-19T10:22:42Z
date_updated: 2024-03-19T10:22:42Z
file_id: '15125'
file_name: 2024_PNAS_Giubertoni.pdf
file_size: 12952586
relation: main_file
success: 1
file_date_updated: 2024-03-19T10:22:42Z
has_accepted_license: '1'
intvolume: ' 121'
issue: '11'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
related_material:
record:
- id: '15126'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Elucidating the role of water in collagen self-assembly by isotopically modulating
collagen hydration
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: 121
year: '2024'
...
---
_id: '14666'
abstract:
- lang: eng
text: So-called spontaneous activity is a central hallmark of most nervous systems.
Such non-causal firing is contrary to the tenet of spikes as a means of communication,
and its purpose remains unclear. We propose that self-initiated firing can serve
as a release valve to protect neurons from the toxic conditions arising in mitochondria
from lower-than-baseline energy consumption. To demonstrate the viability of our
hypothesis, we built a set of models that incorporate recent experimental results
indicating homeostatic control of metabolic products—Adenosine triphosphate (ATP),
adenosine diphosphate (ADP), and reactive oxygen species (ROS)—by changes in firing.
We explore the relationship of metabolic cost of spiking with its effect on the
temporal patterning of spikes and reproduce experimentally observed changes in
intrinsic firing in the fruitfly dorsal fan-shaped body neuron in a model with
ROS-modulated potassium channels. We also show that metabolic spiking homeostasis
can produce indefinitely sustained avalanche dynamics in cortical circuits. Our
theory can account for key features of neuronal activity observed in many studies
ranging from ion channel function all the way to resting state dynamics. We finish
with a set of experimental predictions that would confirm an integrated, crucial
role for metabolically regulated spiking and firmly link metabolic homeostasis
and neuronal function.
acknowledgement: We thank Prof. C. Nazaret and Prof. J.-P. Mazat for sharing the code
of their mitochondrial model. We also thank G. Miesenböck, E. Marder, L. Abbott,
A. Kempf, P. Hasenhuetl, W. Podlaski, F. Zenke, E. Agnes, P. Bozelos, J. Watson,
B. Confavreux, and G. Christodoulou, and the rest of the Vogels Lab for their feedback.
This work was funded by Wellcome Trust and Royal Society Sir Henry Dale Research
Fellowship (WT100000), a Wellcome Trust Senior Research Fellowship (214316/Z/18/Z),
and a UK Research and Innovation, Biotechnology and Biological Sciences Research
Council grant (UKRI-BBSRC BB/N019512/1).
article_number: e2306525120
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Chaitanya
full_name: Chintaluri, Chaitanya
id: E4EDB536-3485-11EA-98D2-20AF3DDC885E
last_name: Chintaluri
- first_name: Tim P
full_name: Vogels, Tim P
id: CB6FF8D2-008F-11EA-8E08-2637E6697425
last_name: Vogels
orcid: 0000-0003-3295-6181
citation:
ama: Chintaluri C, Vogels TP. Metabolically regulated spiking could serve neuronal
energy homeostasis and protect from reactive oxygen species. Proceedings of
the National Academy of Sciences of the United States of America. 2023;120(48).
doi:10.1073/pnas.2306525120
apa: Chintaluri, C., & Vogels, T. P. (2023). Metabolically regulated spiking
could serve neuronal energy homeostasis and protect from reactive oxygen species.
Proceedings of the National Academy of Sciences of the United States of America.
National Academy of Sciences. https://doi.org/10.1073/pnas.2306525120
chicago: Chintaluri, Chaitanya, and Tim P Vogels. “Metabolically Regulated Spiking
Could Serve Neuronal Energy Homeostasis and Protect from Reactive Oxygen Species.”
Proceedings of the National Academy of Sciences of the United States of America.
National Academy of Sciences, 2023. https://doi.org/10.1073/pnas.2306525120.
ieee: C. Chintaluri and T. P. Vogels, “Metabolically regulated spiking could serve
neuronal energy homeostasis and protect from reactive oxygen species,” Proceedings
of the National Academy of Sciences of the United States of America, vol.
120, no. 48. National Academy of Sciences, 2023.
ista: Chintaluri C, Vogels TP. 2023. Metabolically regulated spiking could serve
neuronal energy homeostasis and protect from reactive oxygen species. Proceedings
of the National Academy of Sciences of the United States of America. 120(48),
e2306525120.
mla: Chintaluri, Chaitanya, and Tim P. Vogels. “Metabolically Regulated Spiking
Could Serve Neuronal Energy Homeostasis and Protect from Reactive Oxygen Species.”
Proceedings of the National Academy of Sciences of the United States of America,
vol. 120, no. 48, e2306525120, National Academy of Sciences, 2023, doi:10.1073/pnas.2306525120.
short: C. Chintaluri, T.P. Vogels, Proceedings of the National Academy of Sciences
of the United States of America 120 (2023).
date_created: 2023-12-10T23:01:00Z
date_published: 2023-11-21T00:00:00Z
date_updated: 2023-12-11T12:47:41Z
day: '21'
ddc:
- '570'
department:
- _id: TiVo
doi: 10.1073/pnas.2306525120
external_id:
pmid:
- '37988463'
file:
- access_level: open_access
checksum: bf4ec38602a70dae4338077a5a4d497f
content_type: application/pdf
creator: dernst
date_created: 2023-12-11T12:45:12Z
date_updated: 2023-12-11T12:45:12Z
file_id: '14678'
file_name: 2023_PNAS_Chintaluri.pdf
file_size: 16891602
relation: main_file
success: 1
file_date_updated: 2023-12-11T12:45:12Z
has_accepted_license: '1'
intvolume: ' 120'
issue: '48'
language:
- iso: eng
month: '11'
oa: 1
oa_version: None
pmid: 1
project:
- _id: c084a126-5a5b-11eb-8a69-d75314a70a87
grant_number: 214316/Z/18/Z
name: What’s in a memory? Spatiotemporal dynamics in strongly coupled recurrent
neuronal networks.
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/ccluri/metabolic_spiking
scopus_import: '1'
status: public
title: Metabolically regulated spiking could serve neuronal energy homeostasis and
protect from reactive oxygen species
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: 120
year: '2023'
...
---
_id: '13201'
abstract:
- lang: eng
text: As a crucial nitrogen source, nitrate (NO3−) is a key nutrient for plants.
Accordingly, root systems adapt to maximize NO3− availability, a developmental
regulation also involving the phytohormone auxin. Nonetheless, the molecular mechanisms
underlying this regulation remain poorly understood. Here, we identify low-nitrate-resistant
mutant (lonr) in Arabidopsis (Arabidopsis thaliana), whose root growth fails to
adapt to low-NO3− conditions. lonr2 is defective in the high-affinity NO3− transporter
NRT2.1. lonr2 (nrt2.1) mutants exhibit defects in polar auxin transport, and their
low-NO3−-induced root phenotype depends on the PIN7 auxin exporter activity. NRT2.1
directly associates with PIN7 and antagonizes PIN7-mediated auxin efflux depending
on NO3− levels. These results reveal a mechanism by which NRT2.1 in response to
NO3− limitation directly regulates auxin transport activity and, thus, root growth.
This adaptive mechanism contributes to the root developmental plasticity to help
plants cope with changes in NO3− availability.
acknowledgement: We are grateful to Caifu Jiang for providing ethyl metha-nesulfonate-
mutagenized population, Yi Wang for providing Xenopus oocytes, Jun Fan and Zhaosheng
Kong for providing tobacco BY- 2 cells, and Claus Schwechheimer, Alain Gojon, and
Shutang Tan for helpful discussions. This work was supported by the National Key
Research and Development Program of China (2021YFF1000500), the National Natural Science Foundation of China (32170265 and 32022007), Hainan Provincial Natural Science Foundation of China (323CXTD379), Chinese Universities Scientific Fund (2023TC019), Beijing Municipal Natural Science Foundation (5192011), Beijing Outstanding University Discipline Program, and China
Postdoctoral Science Foundation (BH2020259460).
article_number: e2221313120
article_processing_charge: No
article_type: original
author:
- first_name: Yalu
full_name: Wang, Yalu
last_name: Wang
- first_name: Zhi
full_name: Yuan, Zhi
last_name: Yuan
- first_name: Jinyi
full_name: Wang, Jinyi
last_name: Wang
- first_name: Huixin
full_name: Xiao, Huixin
last_name: Xiao
- first_name: Lu
full_name: Wan, Lu
last_name: Wan
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: Yan
full_name: Guo, Yan
last_name: Guo
- first_name: Zhizhong
full_name: Gong, Zhizhong
last_name: Gong
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Jing
full_name: Zhang, Jing
last_name: Zhang
citation:
ama: Wang Y, Yuan Z, Wang J, et al. The nitrate transporter NRT2.1 directly antagonizes
PIN7-mediated auxin transport for root growth adaptation. Proceedings of the
National Academy of Sciences of the United States of America. 2023;120(25).
doi:10.1073/pnas.2221313120
apa: Wang, Y., Yuan, Z., Wang, J., Xiao, H., Wan, L., Li, L., … Zhang, J. (2023).
The nitrate transporter NRT2.1 directly antagonizes PIN7-mediated auxin transport
for root growth adaptation. Proceedings of the National Academy of Sciences
of the United States of America. National Academy of Sciences. https://doi.org/10.1073/pnas.2221313120
chicago: Wang, Yalu, Zhi Yuan, Jinyi Wang, Huixin Xiao, Lu Wan, Lanxin Li, Yan Guo,
Zhizhong Gong, Jiří Friml, and Jing Zhang. “The Nitrate Transporter NRT2.1 Directly
Antagonizes PIN7-Mediated Auxin Transport for Root Growth Adaptation.” Proceedings
of the National Academy of Sciences of the United States of America. National
Academy of Sciences, 2023. https://doi.org/10.1073/pnas.2221313120.
ieee: Y. Wang et al., “The nitrate transporter NRT2.1 directly antagonizes
PIN7-mediated auxin transport for root growth adaptation,” Proceedings of the
National Academy of Sciences of the United States of America, vol. 120, no.
25. National Academy of Sciences, 2023.
ista: Wang Y, Yuan Z, Wang J, Xiao H, Wan L, Li L, Guo Y, Gong Z, Friml J, Zhang
J. 2023. The nitrate transporter NRT2.1 directly antagonizes PIN7-mediated auxin
transport for root growth adaptation. Proceedings of the National Academy of Sciences
of the United States of America. 120(25), e2221313120.
mla: Wang, Yalu, et al. “The Nitrate Transporter NRT2.1 Directly Antagonizes PIN7-Mediated
Auxin Transport for Root Growth Adaptation.” Proceedings of the National Academy
of Sciences of the United States of America, vol. 120, no. 25, e2221313120,
National Academy of Sciences, 2023, doi:10.1073/pnas.2221313120.
short: Y. Wang, Z. Yuan, J. Wang, H. Xiao, L. Wan, L. Li, Y. Guo, Z. Gong, J. Friml,
J. Zhang, Proceedings of the National Academy of Sciences of the United States
of America 120 (2023).
date_created: 2023-07-09T22:01:12Z
date_published: 2023-06-12T00:00:00Z
date_updated: 2023-12-13T23:30:04Z
day: '12'
ddc:
- '570'
department:
- _id: JiFr
doi: 10.1073/pnas.2221313120
external_id:
isi:
- '001030689600003'
pmid:
- '37307446'
file:
- access_level: open_access
checksum: d800e06252eaefba28531fa9440f23f0
content_type: application/pdf
creator: alisjak
date_created: 2023-07-10T08:48:40Z
date_updated: 2023-12-13T23:30:03Z
embargo: 2023-12-12
file_id: '13204'
file_name: 2023_PNAS_Wang.pdf
file_size: 5244581
relation: main_file
file_date_updated: 2023-12-13T23:30:03Z
has_accepted_license: '1'
intvolume: ' 120'
isi: 1
issue: '25'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The nitrate transporter NRT2.1 directly antagonizes PIN7-mediated auxin transport
for root growth adaptation
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 120
year: '2023'
...
---
_id: '11702'
abstract:
- lang: eng
text: When Mendel’s work was rediscovered in 1900, and extended to establish classical
genetics, it was initially seen in opposition to Darwin’s theory of evolution
by natural selection on continuous variation, as represented by the biometric
research program that was the foundation of quantitative genetics. As Fisher,
Haldane, and Wright established a century ago, Mendelian inheritance is exactly
what is needed for natural selection to work efficiently. Yet, the synthesis remains
unfinished. We do not understand why sexual reproduction and a fair meiosis predominate
in eukaryotes, or how far these are responsible for their diversity and complexity.
Moreover, although quantitative geneticists have long known that adaptive variation
is highly polygenic, and that this is essential for efficient selection, this
is only now becoming appreciated by molecular biologists—and we still do not have
a good framework for understanding polygenic variation or diffuse function.
acknowledgement: I thank Laura Hayward, Jitka Polechova, and Anja Westram for discussions
and comments.
article_number: e2122147119
article_processing_charge: No
article_type: original
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Barton NH. The “New Synthesis.” Proceedings of the National Academy of Sciences
of the United States of America. 2022;119(30). doi:10.1073/pnas.2122147119
apa: Barton, N. H. (2022). The “New Synthesis.” Proceedings of the National Academy
of Sciences of the United States of America. Proceedings of the National Academy
of Sciences. https://doi.org/10.1073/pnas.2122147119
chicago: Barton, Nicholas H. “The ‘New Synthesis.’” Proceedings of the National
Academy of Sciences of the United States of America. Proceedings of the National
Academy of Sciences, 2022. https://doi.org/10.1073/pnas.2122147119.
ieee: N. H. Barton, “The ‘New Synthesis,’” Proceedings of the National Academy
of Sciences of the United States of America, vol. 119, no. 30. Proceedings
of the National Academy of Sciences, 2022.
ista: Barton NH. 2022. The ‘New Synthesis’. Proceedings of the National Academy
of Sciences of the United States of America. 119(30), e2122147119.
mla: Barton, Nicholas H. “The ‘New Synthesis.’” Proceedings of the National Academy
of Sciences of the United States of America, vol. 119, no. 30, e2122147119,
Proceedings of the National Academy of Sciences, 2022, doi:10.1073/pnas.2122147119.
short: N.H. Barton, Proceedings of the National Academy of Sciences of the United
States of America 119 (2022).
date_created: 2022-07-31T22:01:47Z
date_published: 2022-07-18T00:00:00Z
date_updated: 2022-08-01T11:00:25Z
day: '18'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1073/pnas.2122147119
external_id:
pmid:
- '35858408'
file:
- access_level: open_access
checksum: 06c866196a8957f0c37b8a121771c885
content_type: application/pdf
creator: dernst
date_created: 2022-08-01T10:58:28Z
date_updated: 2022-08-01T10:58:28Z
file_id: '11716'
file_name: 2022_PNAS_Barton.pdf
file_size: 848511
relation: main_file
success: 1
file_date_updated: 2022-08-01T10:58:28Z
has_accepted_license: '1'
intvolume: ' 119'
issue: '30'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The "New Synthesis"
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: 119
year: '2022'
...
---
_id: '12577'
abstract:
- lang: eng
text: Glaciers are key components of the mountain water towers of Asia and are vital
for downstream domestic, agricultural, and industrial uses. The glacier mass loss
rate over the southeastern Tibetan Plateau is among the highest in Asia and has
accelerated in recent decades. This acceleration has been attributed to increased
warming, but the mechanisms behind these glaciers’ high sensitivity to warming
remain unclear, while the influence of changes in precipitation over the past
decades is poorly quantified. Here, we reconstruct glacier mass changes and catchment
runoff since 1975 at a benchmark glacier, Parlung No. 4, to shed light on the
drivers of recent mass losses for the monsoonal, spring-accumulation glaciers
of the Tibetan Plateau. Our modeling demonstrates how a temperature increase (mean
of 0.39∘C ⋅dec−1since 1990) has accelerated
mass loss rates by altering both the ablation and accumulation regimes in a complex
manner. The majority of the post-2000 mass loss occurred during the monsoon months,
caused by simultaneous decreases in the solid precipitation ratio (from 0.70 to
0.56) and precipitation amount (–10%), leading to reduced monsoon accumulation
(–26%). Higher solid precipitation in spring (+18%) during the last two decades
was increasingly important in mitigating glacier mass loss by providing mass to
the glacier and protecting it from melting in the early monsoon. With bare ice
exposed to warmer temperatures for longer periods, icemelt and catchment discharge
have unsustainably intensified since the start of the 21st century, raising concerns
for long-term water supply and hazard occurrence in the region.
article_number: e2109796119
article_processing_charge: No
article_type: original
author:
- first_name: Achille
full_name: Jouberton, Achille
last_name: Jouberton
- first_name: Thomas E.
full_name: Shaw, Thomas E.
last_name: Shaw
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Michael
full_name: McCarthy, Michael
last_name: McCarthy
- first_name: Stefan
full_name: Fugger, Stefan
last_name: Fugger
- first_name: Shaoting
full_name: Ren, Shaoting
last_name: Ren
- first_name: Amaury
full_name: Dehecq, Amaury
last_name: Dehecq
- first_name: Wei
full_name: Yang, Wei
last_name: Yang
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Jouberton A, Shaw TE, Miles E, et al. Warming-induced monsoon precipitation
phase change intensifies glacier mass loss in the southeastern Tibetan Plateau.
PNAS. 2022;119(37). doi:10.1073/pnas.2109796119
apa: Jouberton, A., Shaw, T. E., Miles, E., McCarthy, M., Fugger, S., Ren, S., …
Pellicciotti, F. (2022). Warming-induced monsoon precipitation phase change intensifies
glacier mass loss in the southeastern Tibetan Plateau. PNAS. Proceedings
of the National Academy of Sciences. https://doi.org/10.1073/pnas.2109796119
chicago: Jouberton, Achille, Thomas E. Shaw, Evan Miles, Michael McCarthy, Stefan
Fugger, Shaoting Ren, Amaury Dehecq, Wei Yang, and Francesca Pellicciotti. “Warming-Induced
Monsoon Precipitation Phase Change Intensifies Glacier Mass Loss in the Southeastern
Tibetan Plateau.” PNAS. Proceedings of the National Academy of Sciences,
2022. https://doi.org/10.1073/pnas.2109796119.
ieee: A. Jouberton et al., “Warming-induced monsoon precipitation phase change
intensifies glacier mass loss in the southeastern Tibetan Plateau,” PNAS,
vol. 119, no. 37. Proceedings of the National Academy of Sciences, 2022.
ista: Jouberton A, Shaw TE, Miles E, McCarthy M, Fugger S, Ren S, Dehecq A, Yang
W, Pellicciotti F. 2022. Warming-induced monsoon precipitation phase change intensifies
glacier mass loss in the southeastern Tibetan Plateau. PNAS. 119(37), e2109796119.
mla: Jouberton, Achille, et al. “Warming-Induced Monsoon Precipitation Phase Change
Intensifies Glacier Mass Loss in the Southeastern Tibetan Plateau.” PNAS,
vol. 119, no. 37, e2109796119, Proceedings of the National Academy of Sciences,
2022, doi:10.1073/pnas.2109796119.
short: A. Jouberton, T.E. Shaw, E. Miles, M. McCarthy, S. Fugger, S. Ren, A. Dehecq,
W. Yang, F. Pellicciotti, PNAS 119 (2022).
date_created: 2023-02-20T08:10:02Z
date_published: 2022-09-06T00:00:00Z
date_updated: 2023-02-28T13:50:37Z
day: '06'
doi: 10.1073/pnas.2109796119
extern: '1'
intvolume: ' 119'
issue: '37'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '09'
oa_version: None
publication: PNAS
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Warming-induced monsoon precipitation phase change intensifies glacier mass
loss in the southeastern Tibetan Plateau
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 119
year: '2022'
...
---
_id: '11723'
abstract:
- lang: eng
text: Plant cell growth responds rapidly to various stimuli, adapting architecture
to environmental changes. Two major endogenous signals regulating growth are the
phytohormone auxin and the secreted peptides rapid alkalinization factors (RALFs).
Both trigger very rapid cellular responses and also exert long-term effects [Du
et al., Annu. Rev. Plant Biol. 71, 379–402 (2020); Blackburn et al., Plant Physiol.
182, 1657–1666 (2020)]. However, the way, in which these distinct signaling pathways
converge to regulate growth, remains unknown. Here, using vertical confocal microscopy
combined with a microfluidic chip, we addressed the mechanism of RALF action on
growth. We observed correlation between RALF1-induced rapid Arabidopsis thaliana
root growth inhibition and apoplast alkalinization during the initial phase of
the response, and revealed that RALF1 reversibly inhibits primary root growth
through apoplast alkalinization faster than within 1 min. This rapid apoplast
alkalinization was the result of RALF1-induced net H+ influx and was mediated
by the receptor FERONIA (FER). Furthermore, we investigated the cross-talk between
RALF1 and the auxin signaling pathways during root growth regulation. The results
showed that RALF-FER signaling triggered auxin signaling with a delay of approximately
1 h by up-regulating auxin biosynthesis, thus contributing to sustained RALF1-induced
growth inhibition. This biphasic RALF1 action on growth allows plants to respond
rapidly to environmental stimuli and also reprogram growth and development in
the long term.
acknowledgement: We thank Sarah M. Assmann, Kris Vissenberg, and Nadine Paris for
kindly sharing seeds; Matyáš Fendrych for initiating this project and providing
constant support; Lukas Fiedler for revising the manuscript; and Huibin Han and
Arseny Savin for contributing to genotyping. This work was supported by the Austrian
Science Fund (FWF) I 3630-B25 (to J.F.) and the Doctoral Fellowship Progrmme of
the Austrian Academy of Sciences (to L.L.) We also acknowledge Taif University Researchers
Supporting Project TURSP-HC2021/02 and funding “Plants as a tool for sustainable
global development (no. CZ.02.1.01/0.0/0.0/16_019/0000827).”
article_number: e2121058119
article_processing_charge: No
article_type: original
author:
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: Huihuang
full_name: Chen, Huihuang
id: 83c96512-15b2-11ec-abd3-b7eede36184f
last_name: Chen
- first_name: Saqer S.
full_name: Alotaibi, Saqer S.
last_name: Alotaibi
- first_name: Aleš
full_name: Pěnčík, Aleš
last_name: Pěnčík
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
- first_name: Ondřej
full_name: Novák, Ondřej
last_name: Novák
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Li L, Chen H, Alotaibi SS, et al. RALF1 peptide triggers biphasic root growth
inhibition upstream of auxin biosynthesis. Proceedings of the National Academy
of Sciences. 2022;119(31). doi:10.1073/pnas.2121058119
apa: Li, L., Chen, H., Alotaibi, S. S., Pěnčík, A., Adamowski, M., Novák, O., &
Friml, J. (2022). RALF1 peptide triggers biphasic root growth inhibition upstream
of auxin biosynthesis. Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2121058119
chicago: Li, Lanxin, Huihuang Chen, Saqer S. Alotaibi, Aleš Pěnčík, Maciek Adamowski,
Ondřej Novák, and Jiří Friml. “RALF1 Peptide Triggers Biphasic Root Growth Inhibition
Upstream of Auxin Biosynthesis.” Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences, 2022. https://doi.org/10.1073/pnas.2121058119.
ieee: L. Li et al., “RALF1 peptide triggers biphasic root growth inhibition
upstream of auxin biosynthesis,” Proceedings of the National Academy of Sciences,
vol. 119, no. 31. Proceedings of the National Academy of Sciences, 2022.
ista: Li L, Chen H, Alotaibi SS, Pěnčík A, Adamowski M, Novák O, Friml J. 2022.
RALF1 peptide triggers biphasic root growth inhibition upstream of auxin biosynthesis.
Proceedings of the National Academy of Sciences. 119(31), e2121058119.
mla: Li, Lanxin, et al. “RALF1 Peptide Triggers Biphasic Root Growth Inhibition
Upstream of Auxin Biosynthesis.” Proceedings of the National Academy of Sciences,
vol. 119, no. 31, e2121058119, Proceedings of the National Academy of Sciences,
2022, doi:10.1073/pnas.2121058119.
short: L. Li, H. Chen, S.S. Alotaibi, A. Pěnčík, M. Adamowski, O. Novák, J. Friml,
Proceedings of the National Academy of Sciences 119 (2022).
date_created: 2022-08-04T20:06:49Z
date_published: 2022-07-25T00:00:00Z
date_updated: 2023-08-03T12:43:53Z
day: '25'
ddc:
- '580'
department:
- _id: GradSch
- _id: JiFr
doi: 10.1073/pnas.2121058119
external_id:
isi:
- '000881496900002'
pmid:
- '35878023'
file:
- access_level: open_access
checksum: ae6f19b0d9efba6687f9e4dc1bab1d6e
content_type: application/pdf
creator: dernst
date_created: 2022-08-08T07:42:09Z
date_updated: 2022-08-08T07:42:09Z
file_id: '11747'
file_name: 2022_PNAS_Li.pdf
file_size: 2506262
relation: main_file
success: 1
file_date_updated: 2022-08-08T07:42:09Z
has_accepted_license: '1'
intvolume: ' 119'
isi: 1
issue: '31'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 26B4D67E-B435-11E9-9278-68D0E5697425
grant_number: '25351'
name: 'A Case Study of Plant Growth Regulation: Molecular Mechanism of Auxin-mediated
Rapid Growth Inhibition in Arabidopsis Root'
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: RALF1 peptide triggers biphasic root growth inhibition upstream of auxin biosynthesis
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 119
year: '2022'
...
---
_id: '11841'
abstract:
- lang: eng
text: Primary nucleation is the fundamental event that initiates the conversion
of proteins from their normal physiological forms into pathological amyloid aggregates
associated with the onset and development of disorders including systemic amyloidosis,
as well as the neurodegenerative conditions Alzheimer’s and Parkinson’s diseases.
It has become apparent that the presence of surfaces can dramatically modulate
nucleation. However, the underlying physicochemical parameters governing this
process have been challenging to elucidate, with interfaces in some cases having
been found to accelerate aggregation, while in others they can inhibit the kinetics
of this process. Here we show through kinetic analysis that for three different
fibril-forming proteins, interfaces affect the aggregation reaction mainly through
modulating the primary nucleation step. Moreover, we show through direct measurements
of the Gibbs free energy of adsorption, combined with theory and coarse-grained
computer simulations, that overall nucleation rates are suppressed at high and
at low surface interaction strengths but significantly enhanced at intermediate
strengths, and we verify these regimes experimentally. Taken together, these results
provide a quantitative description of the fundamental process which triggers amyloid
formation and shed light on the key factors that control this process.
acknowledgement: "The research leading to these results has received funding from
the European Research Council (ERC) under the European Union’s Seventh Framework
Programme (FP7/2007-2013) through the ERC grant PhysProt\r\n(agreement 337969).
We are grateful for financial support from the Biotechnology and Biological Sciences
Research Council (BBSRC) (T.P.J.K.), the Newman\r\nFoundation (T.P.J.K.), the Wellcome
Trust (T.P.J.K. and M.V.), Peterhouse College\r\nCambridge (T.C.T.M.), the ERC Starting
Grant (StG) Non-Equilibrium Protein Assembly (NEPA) (A.S.), the Royal Society (A.S.),
the Academy of Medical Sciences\r\n(A.S. and J.K.), and the Cambridge Centre for
Misfolding Diseases (CMD)."
article_number: e2109718119
article_processing_charge: No
article_type: original
author:
- first_name: Zenon
full_name: Toprakcioglu, Zenon
last_name: Toprakcioglu
- first_name: Ayaka
full_name: Kamada, Ayaka
last_name: Kamada
- first_name: Thomas C.T.
full_name: Michaels, Thomas C.T.
last_name: Michaels
- first_name: Mengqi
full_name: Xie, Mengqi
last_name: Xie
- first_name: Johannes
full_name: Krausser, Johannes
last_name: Krausser
- first_name: Jiapeng
full_name: Wei, Jiapeng
last_name: Wei
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
- first_name: Michele
full_name: Vendruscolo, Michele
last_name: Vendruscolo
- first_name: Tuomas P.J.
full_name: Knowles, Tuomas P.J.
last_name: Knowles
citation:
ama: Toprakcioglu Z, Kamada A, Michaels TCT, et al. Adsorption free energy predicts
amyloid protein nucleation rates. Proceedings of the National Academy of Sciences
of the United States of America. 2022;119(31). doi:10.1073/pnas.2109718119
apa: Toprakcioglu, Z., Kamada, A., Michaels, T. C. T., Xie, M., Krausser, J., Wei,
J., … Knowles, T. P. J. (2022). Adsorption free energy predicts amyloid protein
nucleation rates. Proceedings of the National Academy of Sciences of the United
States of America. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2109718119
chicago: Toprakcioglu, Zenon, Ayaka Kamada, Thomas C.T. Michaels, Mengqi Xie, Johannes
Krausser, Jiapeng Wei, Anđela Šarić, Michele Vendruscolo, and Tuomas P.J. Knowles.
“Adsorption Free Energy Predicts Amyloid Protein Nucleation Rates.” Proceedings
of the National Academy of Sciences of the United States of America. Proceedings
of the National Academy of Sciences, 2022. https://doi.org/10.1073/pnas.2109718119.
ieee: Z. Toprakcioglu et al., “Adsorption free energy predicts amyloid protein
nucleation rates,” Proceedings of the National Academy of Sciences of the United
States of America, vol. 119, no. 31. Proceedings of the National Academy of
Sciences, 2022.
ista: Toprakcioglu Z, Kamada A, Michaels TCT, Xie M, Krausser J, Wei J, Šarić A,
Vendruscolo M, Knowles TPJ. 2022. Adsorption free energy predicts amyloid protein
nucleation rates. Proceedings of the National Academy of Sciences of the United
States of America. 119(31), e2109718119.
mla: Toprakcioglu, Zenon, et al. “Adsorption Free Energy Predicts Amyloid Protein
Nucleation Rates.” Proceedings of the National Academy of Sciences of the United
States of America, vol. 119, no. 31, e2109718119, Proceedings of the National
Academy of Sciences, 2022, doi:10.1073/pnas.2109718119.
short: Z. Toprakcioglu, A. Kamada, T.C.T. Michaels, M. Xie, J. Krausser, J. Wei,
A. Šarić, M. Vendruscolo, T.P.J. Knowles, Proceedings of the National Academy
of Sciences of the United States of America 119 (2022).
date_created: 2022-08-14T22:01:45Z
date_published: 2022-07-28T00:00:00Z
date_updated: 2023-10-04T09:06:52Z
day: '28'
ddc:
- '570'
department:
- _id: AnSa
doi: 10.1073/pnas.2109718119
ec_funded: 1
external_id:
isi:
- '000903753500002'
file:
- access_level: open_access
checksum: 0fe3878896cbeb6c44e29222ec2f336a
content_type: application/pdf
creator: dernst
date_created: 2023-10-04T09:05:44Z
date_updated: 2023-10-04T09:05:44Z
file_id: '14386'
file_name: 2022_PNAS_Toprakcioglu.pdf
file_size: 2476021
relation: main_file
success: 1
file_date_updated: 2023-10-04T09:05:44Z
has_accepted_license: '1'
intvolume: ' 119'
isi: 1
issue: '31'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: eba2549b-77a9-11ec-83b8-a81e493eae4e
call_identifier: H2020
grant_number: '802960'
name: 'Non-Equilibrium Protein Assembly: from Building Blocks to Biological Machines'
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Adsorption free energy predicts amyloid protein nucleation rates
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 119
year: '2022'
...
---
_id: '12081'
abstract:
- lang: eng
text: 'Selection accumulates information in the genome—it guides stochastically
evolving populations toward states (genotype frequencies) that would be unlikely
under neutrality. This can be quantified as the Kullback–Leibler (KL) divergence
between the actual distribution of genotype frequencies and the corresponding
neutral distribution. First, we show that this population-level information sets
an upper bound on the information at the level of genotype and phenotype, limiting
how precisely they can be specified by selection. Next, we study how the accumulation
and maintenance of information is limited by the cost of selection, measured as
the genetic load or the relative fitness variance, both of which we connect to
the control-theoretic KL cost of control. The information accumulation rate is
upper bounded by the population size times the cost of selection. This bound is
very general, and applies across models (Wright–Fisher, Moran, diffusion) and
to arbitrary forms of selection, mutation, and recombination. Finally, the cost
of maintaining information depends on how it is encoded: Specifying a single allele
out of two is expensive, but one bit encoded among many weakly specified loci
(as in a polygenic trait) is cheap.'
acknowledgement: We thank Ksenia Khudiakova, Wiktor Młynarski, Sean Stankowski, and
two anonymous reviewers for discussions and comments on the manuscript. G.T. and
M.H. acknowledge funding from the Human Frontier Science Program Grant RGP0032/2018.
N.B. acknowledges funding from ERC Grant 250152 “Information and Evolution.”
article_number: e2123152119
article_processing_charge: No
article_type: original
author:
- first_name: Michal
full_name: Hledik, Michal
id: 4171253A-F248-11E8-B48F-1D18A9856A87
last_name: Hledik
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Gašper
full_name: Tkačik, Gašper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkačik
orcid: '1'
citation:
ama: Hledik M, Barton NH, Tkačik G. Accumulation and maintenance of information
in evolution. Proceedings of the National Academy of Sciences. 2022;119(36).
doi:10.1073/pnas.2123152119
apa: Hledik, M., Barton, N. H., & Tkačik, G. (2022). Accumulation and maintenance
of information in evolution. Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2123152119
chicago: Hledik, Michal, Nicholas H Barton, and Gašper Tkačik. “Accumulation and
Maintenance of Information in Evolution.” Proceedings of the National Academy
of Sciences. Proceedings of the National Academy of Sciences, 2022. https://doi.org/10.1073/pnas.2123152119.
ieee: M. Hledik, N. H. Barton, and G. Tkačik, “Accumulation and maintenance of information
in evolution,” Proceedings of the National Academy of Sciences, vol. 119,
no. 36. Proceedings of the National Academy of Sciences, 2022.
ista: Hledik M, Barton NH, Tkačik G. 2022. Accumulation and maintenance of information
in evolution. Proceedings of the National Academy of Sciences. 119(36), e2123152119.
mla: Hledik, Michal, et al. “Accumulation and Maintenance of Information in Evolution.”
Proceedings of the National Academy of Sciences, vol. 119, no. 36, e2123152119,
Proceedings of the National Academy of Sciences, 2022, doi:10.1073/pnas.2123152119.
short: M. Hledik, N.H. Barton, G. Tkačik, Proceedings of the National Academy of
Sciences 119 (2022).
date_created: 2022-09-11T22:01:55Z
date_published: 2022-08-29T00:00:00Z
date_updated: 2024-03-06T14:22:51Z
day: '29'
ddc:
- '570'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1073/pnas.2123152119
ec_funded: 1
external_id:
isi:
- '000889278400014'
pmid:
- '36037343'
file:
- access_level: open_access
checksum: 6dec51f6567da9039982a571508a8e4d
content_type: application/pdf
creator: dernst
date_created: 2022-09-12T08:08:12Z
date_updated: 2022-09-12T08:08:12Z
file_id: '12091'
file_name: 2022_PNAS_Hledik.pdf
file_size: 2165752
relation: main_file
success: 1
file_date_updated: 2022-09-12T08:08:12Z
has_accepted_license: '1'
intvolume: ' 119'
isi: 1
issue: '36'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
- _id: 2665AAFE-B435-11E9-9278-68D0E5697425
grant_number: RGP0034/2018
name: Can evolution minimize spurious signaling crosstalk to reach optimal performance?
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
related_material:
record:
- id: '15020'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Accumulation and maintenance of information in evolution
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: 119
year: '2022'
...
---
_id: '12667'
abstract:
- lang: eng
text: Unlike crystalline atomic and ionic solids, texture development due to crystallographically
preferred growth in colloidal crystals is less studied. Here we investigate the
underlying mechanisms of the texture evolution in an evaporation-induced colloidal
assembly process through experiments, modeling, and theoretical analysis. In this
widely used approach to obtain large-area colloidal crystals, the colloidal particles
are driven to the meniscus via the evaporation of a solvent or matrix precursor
solution where they close-pack to form a face-centered cubic colloidal assembly.
Via two-dimensional large-area crystallographic mapping, we show that the initial
crystal orientation is dominated by the interaction of particles with the meniscus,
resulting in the expected coalignment of the close-packed direction with the local
meniscus geometry. By combining with crystal structure analysis at a single-particle
level, we further reveal that, at the later stage of self-assembly, however, the
colloidal crystal undergoes a gradual rotation facilitated by geometrically necessary
dislocations (GNDs) and achieves a large-area uniform crystallographic orientation
with the close-packed direction perpendicular to the meniscus and parallel to
the growth direction. Classical slip analysis, finite element-based mechanical
simulation, computational colloidal assembly modeling, and continuum theory unequivocally
show that these GNDs result from the tensile stress field along the meniscus direction
due to the constrained shrinkage of the colloidal crystal during drying. The generation
of GNDs with specific slip systems within individual grains leads to crystallographic
rotation to accommodate the mechanical stress. The mechanistic understanding reported
here can be utilized to control crystallographic features of colloidal assemblies,
and may provide further insights into crystallographically preferred growth in
synthetic, biological, and geological crystals.
article_number: e2107588118
article_processing_charge: No
article_type: original
author:
- first_name: Ling
full_name: Li, Ling
last_name: Li
- first_name: Carl Peter
full_name: Goodrich, Carl Peter
id: EB352CD2-F68A-11E9-89C5-A432E6697425
last_name: Goodrich
orcid: 0000-0002-1307-5074
- first_name: Haizhao
full_name: Yang, Haizhao
last_name: Yang
- first_name: Katherine R.
full_name: Phillips, Katherine R.
last_name: Phillips
- first_name: Zian
full_name: Jia, Zian
last_name: Jia
- first_name: Hongshun
full_name: Chen, Hongshun
last_name: Chen
- first_name: Lifeng
full_name: Wang, Lifeng
last_name: Wang
- first_name: Jinjin
full_name: Zhong, Jinjin
last_name: Zhong
- first_name: Anhua
full_name: Liu, Anhua
last_name: Liu
- first_name: Jianfeng
full_name: Lu, Jianfeng
last_name: Lu
- first_name: Jianwei
full_name: Shuai, Jianwei
last_name: Shuai
- first_name: Michael P.
full_name: Brenner, Michael P.
last_name: Brenner
- first_name: Frans
full_name: Spaepen, Frans
last_name: Spaepen
- first_name: Joanna
full_name: Aizenberg, Joanna
last_name: Aizenberg
citation:
ama: Li L, Goodrich CP, Yang H, et al. Microscopic origins of the crystallographically
preferred growth in evaporation-induced colloidal crystals. PNAS. 2021;118(32).
doi:10.1073/pnas.2107588118
apa: Li, L., Goodrich, C. P., Yang, H., Phillips, K. R., Jia, Z., Chen, H., … Aizenberg,
J. (2021). Microscopic origins of the crystallographically preferred growth in
evaporation-induced colloidal crystals. PNAS. Proceedings of the National
Academy of Sciences. https://doi.org/10.1073/pnas.2107588118
chicago: Li, Ling, Carl Peter Goodrich, Haizhao Yang, Katherine R. Phillips, Zian
Jia, Hongshun Chen, Lifeng Wang, et al. “Microscopic Origins of the Crystallographically
Preferred Growth in Evaporation-Induced Colloidal Crystals.” PNAS. Proceedings
of the National Academy of Sciences, 2021. https://doi.org/10.1073/pnas.2107588118.
ieee: L. Li et al., “Microscopic origins of the crystallographically preferred
growth in evaporation-induced colloidal crystals,” PNAS, vol. 118, no.
32. Proceedings of the National Academy of Sciences, 2021.
ista: Li L, Goodrich CP, Yang H, Phillips KR, Jia Z, Chen H, Wang L, Zhong J, Liu
A, Lu J, Shuai J, Brenner MP, Spaepen F, Aizenberg J. 2021. Microscopic origins
of the crystallographically preferred growth in evaporation-induced colloidal
crystals. PNAS. 118(32), e2107588118.
mla: Li, Ling, et al. “Microscopic Origins of the Crystallographically Preferred
Growth in Evaporation-Induced Colloidal Crystals.” PNAS, vol. 118, no.
32, e2107588118, Proceedings of the National Academy of Sciences, 2021, doi:10.1073/pnas.2107588118.
short: L. Li, C.P. Goodrich, H. Yang, K.R. Phillips, Z. Jia, H. Chen, L. Wang, J.
Zhong, A. Liu, J. Lu, J. Shuai, M.P. Brenner, F. Spaepen, J. Aizenberg, PNAS 118
(2021).
date_created: 2023-02-21T08:51:04Z
date_published: 2021-08-10T00:00:00Z
date_updated: 2023-02-23T10:45:44Z
day: '10'
ddc:
- '570'
doi: 10.1073/pnas.2107588118
extern: '1'
external_id:
pmid:
- '34341109'
file:
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checksum: 702f7ec60ce6f2815104ab649dc661a4
content_type: application/pdf
creator: dernst
date_created: 2023-02-23T10:42:07Z
date_updated: 2023-02-23T10:42:07Z
file_id: '12674'
file_name: 2021_PNAS_Li.pdf
file_size: 3275944
relation: main_file
success: 1
file_date_updated: 2023-02-23T10:42:07Z
has_accepted_license: '1'
intvolume: ' 118'
issue: '32'
language:
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month: '08'
oa: 1
oa_version: Published Version
pmid: 1
publication: PNAS
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Microscopic origins of the crystallographically preferred growth in evaporation-induced
colloidal crystals
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 118
year: '2021'
...
---
_id: '9257'
abstract:
- lang: eng
text: 'The inverse problem of designing component interactions to target emergent
structure is fundamental to numerous applications in biotechnology, materials
science, and statistical physics. Equally important is the inverse problem of
designing emergent kinetics, but this has received considerably less attention.
Using recent advances in automatic differentiation, we show how kinetic pathways
can be precisely designed by directly differentiating through statistical physics
models, namely free energy calculations and molecular dynamics simulations. We
consider two systems that are crucial to our understanding of structural self-assembly:
bulk crystallization and small nanoclusters. In each case, we are able to assemble
precise dynamical features. Using gradient information, we manipulate interactions
among constituent particles to tune the rate at which these systems yield specific
structures of interest. Moreover, we use this approach to learn nontrivial features
about the high-dimensional design space, allowing us to accurately predict when
multiple kinetic features can be simultaneously and independently controlled.
These results provide a concrete and generalizable foundation for studying nonstructural
self-assembly, including kinetic properties as well as other complex emergent
properties, in a vast array of systems.'
acknowledgement: We thank Agnese Curatolo, Megan Engel, Ofer Kimchi, Seong Ho Pahng,
and Roy Frostig for helpful discussions. This material is based on work supported
by NSF Graduate Research Fellowship Grant DGE1745303. This research was funded by
NSF Grant DMS-1715477, Materials Research Science and Engineering Centers Grant
DMR-1420570, and Office of Naval Research Grant N00014-17-1-3029. M.P.B. is an investigator
of the Simons Foundation.
article_number: e2024083118
article_processing_charge: No
article_type: original
author:
- first_name: Carl Peter
full_name: Goodrich, Carl Peter
id: EB352CD2-F68A-11E9-89C5-A432E6697425
last_name: Goodrich
orcid: 0000-0002-1307-5074
- first_name: Ella M.
full_name: King, Ella M.
last_name: King
- first_name: Samuel S.
full_name: Schoenholz, Samuel S.
last_name: Schoenholz
- first_name: Ekin D.
full_name: Cubuk, Ekin D.
last_name: Cubuk
- first_name: Michael P.
full_name: Brenner, Michael P.
last_name: Brenner
citation:
ama: Goodrich CP, King EM, Schoenholz SS, Cubuk ED, Brenner MP. Designing self-assembling
kinetics with differentiable statistical physics models. Proceedings of the
National Academy of Sciences. 2021;118(10). doi:10.1073/pnas.2024083118
apa: Goodrich, C. P., King, E. M., Schoenholz, S. S., Cubuk, E. D., & Brenner,
M. P. (2021). Designing self-assembling kinetics with differentiable statistical
physics models. Proceedings of the National Academy of Sciences. National
Academy of Sciences. https://doi.org/10.1073/pnas.2024083118
chicago: Goodrich, Carl Peter, Ella M. King, Samuel S. Schoenholz, Ekin D. Cubuk,
and Michael P. Brenner. “Designing Self-Assembling Kinetics with Differentiable
Statistical Physics Models.” Proceedings of the National Academy of Sciences.
National Academy of Sciences, 2021. https://doi.org/10.1073/pnas.2024083118.
ieee: C. P. Goodrich, E. M. King, S. S. Schoenholz, E. D. Cubuk, and M. P. Brenner,
“Designing self-assembling kinetics with differentiable statistical physics models,”
Proceedings of the National Academy of Sciences, vol. 118, no. 10. National
Academy of Sciences, 2021.
ista: Goodrich CP, King EM, Schoenholz SS, Cubuk ED, Brenner MP. 2021. Designing
self-assembling kinetics with differentiable statistical physics models. Proceedings
of the National Academy of Sciences. 118(10), e2024083118.
mla: Goodrich, Carl Peter, et al. “Designing Self-Assembling Kinetics with Differentiable
Statistical Physics Models.” Proceedings of the National Academy of Sciences,
vol. 118, no. 10, e2024083118, National Academy of Sciences, 2021, doi:10.1073/pnas.2024083118.
short: C.P. Goodrich, E.M. King, S.S. Schoenholz, E.D. Cubuk, M.P. Brenner, Proceedings
of the National Academy of Sciences 118 (2021).
date_created: 2021-03-21T23:01:20Z
date_published: 2021-03-09T00:00:00Z
date_updated: 2023-08-07T14:19:34Z
day: '09'
ddc:
- '530'
department:
- _id: CaGo
doi: 10.1073/pnas.2024083118
external_id:
isi:
- '000627429100097'
pmid:
- '33653960'
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checksum: 5be8da2b1c0757feb1057f1a515cf9e0
content_type: application/pdf
creator: dernst
date_created: 2021-03-22T12:23:54Z
date_updated: 2021-03-22T12:23:54Z
file_id: '9278'
file_name: 2021_PNAS_Goodrich.pdf
file_size: 1047954
relation: main_file
success: 1
file_date_updated: 2021-03-22T12:23:54Z
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intvolume: ' 118'
isi: 1
issue: '10'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Designing self-assembling kinetics with differentiable statistical physics
models
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 118
year: '2021'
...
---
_id: '9877'
abstract:
- lang: eng
text: 'Parent-of-origin–dependent gene expression in mammals and flowering plants
results from differing chromatin imprints (genomic imprinting) between maternally
and paternally inherited alleles. Imprinted gene expression in the endosperm of
seeds is associated with localized hypomethylation of maternally but not paternally
inherited DNA, with certain small RNAs also displaying parent-of-origin–specific
expression. To understand the evolution of imprinting mechanisms in Oryza sativa
(rice), we analyzed imprinting divergence among four cultivars that span both
japonica and indica subspecies: Nipponbare, Kitaake, 93-11, and IR64. Most imprinted
genes are imprinted across cultivars and enriched for functions in chromatin and
transcriptional regulation, development, and signaling. However, 4 to 11% of imprinted
genes display divergent imprinting. Analyses of DNA methylation and small RNAs
revealed that endosperm-specific 24-nt small RNA–producing loci show weak RNA-directed
DNA methylation, frequently overlap genes, and are imprinted four times more often
than genes. However, imprinting divergence most often correlated with local DNA
methylation epimutations (9 of 17 assessable loci), which were largely stable
within subspecies. Small insertion/deletion events and transposable element insertions
accompanied 4 of the 9 locally epimutated loci and associated with imprinting
divergence at another 4 of the remaining 8 loci. Correlating epigenetic and genetic
variation occurred at key regulatory regions—the promoter and transcription start
site of maternally biased genes, and the promoter and gene body of paternally
biased genes. Our results reinforce models for the role of maternal-specific DNA
hypomethylation in imprinting of both maternally and paternally biased genes,
and highlight the role of transposition and epimutation in rice imprinting evolution.'
acknowledgement: We thank W. Schackwitz, M. Joel, and the Joint Genome Institute sequencing
team for generating the IR64 genome sequence and initial analysis; L. Bartley and
E. Marvinney for genomic DNA preparation for IR64 resequencing; and the University
of California (UC), Berkeley Sanger sequencing team for technical advice and service.
This work was partially funded by NSF Grant IOS-1025890 (to R.L.F. and D.Z.), NIH
Grant GM69415 (to R.L.F. and D.Z.), NIH Grant GM122968 (to P.C.R.), a Young Investigator
Grant from the Arnold and Mabel Beckman Foundation (to D.Z.), an International Fulbright
Science and Technology Award (to J.A.R.), and a Taiwan Ministry of Education Studying
Abroad Scholarship (to P.-H.H.). This work used the Vincent J. Coates Genomics Sequencing
Laboratory at UC Berkeley, supported by NIH Instrumentation Grant S10 OD018174.
article_number: e2104445118
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Jessica A.
full_name: Rodrigues, Jessica A.
last_name: Rodrigues
- first_name: Ping-Hung
full_name: Hsieh, Ping-Hung
last_name: Hsieh
- first_name: Deling
full_name: Ruan, Deling
last_name: Ruan
- first_name: Toshiro
full_name: Nishimura, Toshiro
last_name: Nishimura
- first_name: Manoj K.
full_name: Sharma, Manoj K.
last_name: Sharma
- first_name: Rita
full_name: Sharma, Rita
last_name: Sharma
- first_name: XinYi
full_name: Ye, XinYi
last_name: Ye
- first_name: Nicholas D.
full_name: Nguyen, Nicholas D.
last_name: Nguyen
- first_name: Sukhranjan
full_name: Nijjar, Sukhranjan
last_name: Nijjar
- first_name: Pamela C.
full_name: Ronald, Pamela C.
last_name: Ronald
- first_name: Robert L.
full_name: Fischer, Robert L.
last_name: Fischer
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Rodrigues JA, Hsieh P-H, Ruan D, et al. Divergence among rice cultivars reveals
roles for transposition and epimutation in ongoing evolution of genomic imprinting.
Proceedings of the National Academy of Sciences. 2021;118(29). doi:10.1073/pnas.2104445118
apa: Rodrigues, J. A., Hsieh, P.-H., Ruan, D., Nishimura, T., Sharma, M. K., Sharma,
R., … Zilberman, D. (2021). Divergence among rice cultivars reveals roles for
transposition and epimutation in ongoing evolution of genomic imprinting. Proceedings
of the National Academy of Sciences. National Academy of Sciences. https://doi.org/10.1073/pnas.2104445118
chicago: Rodrigues, Jessica A., Ping-Hung Hsieh, Deling Ruan, Toshiro Nishimura,
Manoj K. Sharma, Rita Sharma, XinYi Ye, et al. “Divergence among Rice Cultivars
Reveals Roles for Transposition and Epimutation in Ongoing Evolution of Genomic
Imprinting.” Proceedings of the National Academy of Sciences. National
Academy of Sciences, 2021. https://doi.org/10.1073/pnas.2104445118.
ieee: J. A. Rodrigues et al., “Divergence among rice cultivars reveals roles
for transposition and epimutation in ongoing evolution of genomic imprinting,”
Proceedings of the National Academy of Sciences, vol. 118, no. 29. National
Academy of Sciences, 2021.
ista: Rodrigues JA, Hsieh P-H, Ruan D, Nishimura T, Sharma MK, Sharma R, Ye X, Nguyen
ND, Nijjar S, Ronald PC, Fischer RL, Zilberman D. 2021. Divergence among rice
cultivars reveals roles for transposition and epimutation in ongoing evolution
of genomic imprinting. Proceedings of the National Academy of Sciences. 118(29),
e2104445118.
mla: Rodrigues, Jessica A., et al. “Divergence among Rice Cultivars Reveals Roles
for Transposition and Epimutation in Ongoing Evolution of Genomic Imprinting.”
Proceedings of the National Academy of Sciences, vol. 118, no. 29, e2104445118,
National Academy of Sciences, 2021, doi:10.1073/pnas.2104445118.
short: J.A. Rodrigues, P.-H. Hsieh, D. Ruan, T. Nishimura, M.K. Sharma, R. Sharma,
X. Ye, N.D. Nguyen, S. Nijjar, P.C. Ronald, R.L. Fischer, D. Zilberman, Proceedings
of the National Academy of Sciences 118 (2021).
date_created: 2021-08-10T19:30:41Z
date_published: 2021-07-16T00:00:00Z
date_updated: 2023-08-11T10:28:10Z
day: '16'
ddc:
- '580'
- '570'
department:
- _id: DaZi
doi: 10.1073/pnas.2104445118
external_id:
isi:
- '000685037700012'
pmid:
- '34272287'
file:
- access_level: open_access
checksum: 19e84ad8c03c60222744ee8e16cd6998
content_type: application/pdf
creator: asandaue
date_created: 2021-08-11T09:31:41Z
date_updated: 2021-08-11T09:31:41Z
file_id: '9879'
file_name: 2021_ProceedingsOfTheNationalAcademyOfSciences_Rodrigues.pdf
file_size: 1898360
relation: main_file
success: 1
file_date_updated: 2021-08-11T09:31:41Z
has_accepted_license: '1'
intvolume: ' 118'
isi: 1
issue: '29'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Divergence among rice cultivars reveals roles for transposition and epimutation
in ongoing evolution of genomic imprinting
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 118
year: '2021'
...
---
_id: '10299'
abstract:
- lang: eng
text: Turbulence generally arises in shear flows if velocities and hence, inertial
forces are sufficiently large. In striking contrast, viscoelastic fluids can exhibit
disordered motion even at vanishing inertia. Intermediate between these cases,
a state of chaotic motion, “elastoinertial turbulence” (EIT), has been observed
in a narrow Reynolds number interval. We here determine the origin of EIT in experiments
and show that characteristic EIT structures can be detected across an unexpectedly
wide range of parameters. Close to onset, a pattern of chevron-shaped streaks
emerges in qualitative agreement with linear and weakly nonlinear theory. However,
in experiments, the dynamics remain weakly chaotic, and the instability can be
traced to far lower Reynolds numbers than permitted by theory. For increasing
inertia, the flow undergoes a transformation to a wall mode composed of inclined
near-wall streaks and shear layers. This mode persists to what is known as the
“maximum drag reduction limit,” and overall EIT is found to dominate viscoelastic
flows across more than three orders of magnitude in Reynolds number.
acknowledgement: We thank Y. Dubief, R. Kerswell, E. Marensi, V. Shankar, V. Steinberg,
and V. Terrapon for discussions and helpful comments. A.V. and B.H. acknowledge
funding from the Austrian Science Fund, grant I4188-N30, within the Deutsche Forschungsgemeinschaft
research unit FOR 2688.
article_number: e2102350118
article_processing_charge: No
article_type: original
author:
- first_name: George H
full_name: Choueiri, George H
id: 448BD5BC-F248-11E8-B48F-1D18A9856A87
last_name: Choueiri
- first_name: Jose M
full_name: Lopez Alonso, Jose M
id: 40770848-F248-11E8-B48F-1D18A9856A87
last_name: Lopez Alonso
orcid: 0000-0002-0384-2022
- first_name: Atul
full_name: Varshney, Atul
id: 2A2006B2-F248-11E8-B48F-1D18A9856A87
last_name: Varshney
orcid: 0000-0002-3072-5999
- first_name: Sarath
full_name: Sankar, Sarath
last_name: Sankar
- first_name: Björn
full_name: Hof, Björn
id: 3A374330-F248-11E8-B48F-1D18A9856A87
last_name: Hof
orcid: 0000-0003-2057-2754
citation:
ama: Choueiri GH, Lopez Alonso JM, Varshney A, Sankar S, Hof B. Experimental observation
of the origin and structure of elastoinertial turbulence. Proceedings of the
National Academy of Sciences. 2021;118(45). doi:10.1073/pnas.2102350118
apa: Choueiri, G. H., Lopez Alonso, J. M., Varshney, A., Sankar, S., & Hof,
B. (2021). Experimental observation of the origin and structure of elastoinertial
turbulence. Proceedings of the National Academy of Sciences. National Academy
of Sciences. https://doi.org/10.1073/pnas.2102350118
chicago: Choueiri, George H, Jose M Lopez Alonso, Atul Varshney, Sarath Sankar,
and Björn Hof. “Experimental Observation of the Origin and Structure of Elastoinertial
Turbulence.” Proceedings of the National Academy of Sciences. National
Academy of Sciences, 2021. https://doi.org/10.1073/pnas.2102350118.
ieee: G. H. Choueiri, J. M. Lopez Alonso, A. Varshney, S. Sankar, and B. Hof, “Experimental
observation of the origin and structure of elastoinertial turbulence,” Proceedings
of the National Academy of Sciences, vol. 118, no. 45. National Academy of
Sciences, 2021.
ista: Choueiri GH, Lopez Alonso JM, Varshney A, Sankar S, Hof B. 2021. Experimental
observation of the origin and structure of elastoinertial turbulence. Proceedings
of the National Academy of Sciences. 118(45), e2102350118.
mla: Choueiri, George H., et al. “Experimental Observation of the Origin and Structure
of Elastoinertial Turbulence.” Proceedings of the National Academy of Sciences,
vol. 118, no. 45, e2102350118, National Academy of Sciences, 2021, doi:10.1073/pnas.2102350118.
short: G.H. Choueiri, J.M. Lopez Alonso, A. Varshney, S. Sankar, B. Hof, Proceedings
of the National Academy of Sciences 118 (2021).
date_created: 2021-11-17T13:24:24Z
date_published: 2021-11-03T00:00:00Z
date_updated: 2023-08-14T11:50:10Z
day: '03'
department:
- _id: BjHo
doi: 10.1073/pnas.2102350118
external_id:
arxiv:
- '2103.00023'
isi:
- '000720926900019'
pmid:
- ' 34732570'
intvolume: ' 118'
isi: 1
issue: '45'
keyword:
- multidisciplinary
- elastoinertial turbulence
- viscoelastic flows
- elastic instability
- drag reduction
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2103.00023
month: '11'
oa: 1
oa_version: Preprint
pmid: 1
project:
- _id: 238B8092-32DE-11EA-91FC-C7463DDC885E
call_identifier: FWF
grant_number: I04188
name: Instabilities in pulsating pipe flow of Newtonian and complex fluids
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Experimental observation of the origin and structure of elastoinertial turbulence
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 118
year: '2021'
...
---
_id: '9301'
abstract:
- lang: eng
text: Electrodepositing insulating lithium peroxide (Li2O2) is the key process during
discharge of aprotic Li–O2 batteries and determines rate, capacity, and reversibility.
Current understanding states that the partition between surface adsorbed and dissolved
lithium superoxide governs whether Li2O2 grows as a conformal surface film or
larger particles, leading to low or high capacities, respectively. However, better
understanding governing factors for Li2O2 packing density and capacity requires
structural sensitive in situ metrologies. Here, we establish in situ small- and
wide-angle X-ray scattering (SAXS/WAXS) as a suitable method to record the Li2O2
phase evolution with atomic to submicrometer resolution during cycling a custom-built
in situ Li–O2 cell. Combined with sophisticated data analysis, SAXS allows retrieving
rich quantitative structural information from complex multiphase systems. Surprisingly,
we find that features are absent that would point at a Li2O2 surface film formed
via two consecutive electron transfers, even in poorly solvating electrolytes
thought to be prototypical for surface growth. All scattering data can be modeled
by stacks of thin Li2O2 platelets potentially forming large toroidal particles.
Li2O2 solution growth is further justified by rotating ring-disk electrode measurements
and electron microscopy. Higher discharge overpotentials lead to smaller Li2O2
particles, but there is no transition to an electronically passivating, conformal
Li2O2 coating. Hence, mass transport of reactive species rather than electronic
transport through a Li2O2 film limits the discharge capacity. Provided that species
mobilities and carbon surface areas are high, this allows for high discharge capacities
even in weakly solvating electrolytes. The currently accepted Li–O2 reaction mechanism
ought to be reconsidered.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: S.A.F. and C.P. are indebted to the European Research Council under
the European Union's Horizon 2020 research and innovation program (Grant Agreement
No. 636069), the Austrian Federal Ministry of Science, Research and Economy, and
the Austrian Research Promotion Agency (Grant No. 845364). We acknowledge A. Zankel
and H. Schroettner for support with SEM measurements. C.P. thanks N. Kostoglou,
C. Koczwara, M. Hartmann, and M. Burian for discussions on gas sorption analysis,
C++ programming, Monte Carlo modeling, and in situ SAXS experiments, respectively.
We thank S. Stadlbauer for help with Karl Fischer titration, R. Riccò for gas sorption
measurements, and acknowledge Graz University of Technology for support through
the Lead Project LP-03. Likewise, the use of SOMAPP Lab, a core facility supported
by the Austrian Federal Ministry of Education, Science and Research, the Graz University
of Technology, the University of Graz, and Anton Paar GmbH is acknowledged. S.A.F.
is indebted to Institute of Science and Technology Austria (IST Austria) for support.
This research was supported by the Scientific Service Units of IST Austria through
resources provided by the Electron Microscopy Facility.
article_number: e2021893118
article_processing_charge: No
article_type: original
author:
- first_name: Christian
full_name: Prehal, Christian
last_name: Prehal
- first_name: Aleksej
full_name: Samojlov, Aleksej
last_name: Samojlov
- first_name: Manfred
full_name: Nachtnebel, Manfred
last_name: Nachtnebel
- first_name: Ludek
full_name: Lovicar, Ludek
id: 36DB3A20-F248-11E8-B48F-1D18A9856A87
last_name: Lovicar
orcid: 0000-0001-6206-4200
- first_name: Manfred
full_name: Kriechbaum, Manfred
last_name: Kriechbaum
- first_name: Heinz
full_name: Amenitsch, Heinz
last_name: Amenitsch
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
citation:
ama: Prehal C, Samojlov A, Nachtnebel M, et al. In situ small-angle X-ray scattering
reveals solution phase discharge of Li–O2 batteries with weakly solvating electrolytes.
Proceedings of the National Academy of Sciences. 2021;118(14). doi:10.1073/pnas.2021893118
apa: Prehal, C., Samojlov, A., Nachtnebel, M., Lovicar, L., Kriechbaum, M., Amenitsch,
H., & Freunberger, S. A. (2021). In situ small-angle X-ray scattering reveals
solution phase discharge of Li–O2 batteries with weakly solvating electrolytes.
Proceedings of the National Academy of Sciences. National Academy of Sciences.
https://doi.org/10.1073/pnas.2021893118
chicago: Prehal, Christian, Aleksej Samojlov, Manfred Nachtnebel, Ludek Lovicar,
Manfred Kriechbaum, Heinz Amenitsch, and Stefan Alexander Freunberger. “In Situ
Small-Angle X-Ray Scattering Reveals Solution Phase Discharge of Li–O2 Batteries
with Weakly Solvating Electrolytes.” Proceedings of the National Academy of
Sciences. National Academy of Sciences, 2021. https://doi.org/10.1073/pnas.2021893118.
ieee: C. Prehal et al., “In situ small-angle X-ray scattering reveals solution
phase discharge of Li–O2 batteries with weakly solvating electrolytes,” Proceedings
of the National Academy of Sciences, vol. 118, no. 14. National Academy of
Sciences, 2021.
ista: Prehal C, Samojlov A, Nachtnebel M, Lovicar L, Kriechbaum M, Amenitsch H,
Freunberger SA. 2021. In situ small-angle X-ray scattering reveals solution phase
discharge of Li–O2 batteries with weakly solvating electrolytes. Proceedings of
the National Academy of Sciences. 118(14), e2021893118.
mla: Prehal, Christian, et al. “In Situ Small-Angle X-Ray Scattering Reveals Solution
Phase Discharge of Li–O2 Batteries with Weakly Solvating Electrolytes.” Proceedings
of the National Academy of Sciences, vol. 118, no. 14, e2021893118, National
Academy of Sciences, 2021, doi:10.1073/pnas.2021893118.
short: C. Prehal, A. Samojlov, M. Nachtnebel, L. Lovicar, M. Kriechbaum, H. Amenitsch,
S.A. Freunberger, Proceedings of the National Academy of Sciences 118 (2021).
date_created: 2021-03-31T07:00:01Z
date_published: 2021-04-06T00:00:00Z
date_updated: 2023-09-05T13:27:18Z
day: '06'
department:
- _id: StFr
- _id: EM-Fac
doi: 10.1073/pnas.2021893118
external_id:
isi:
- '000637398300050'
intvolume: ' 118'
isi: 1
issue: '14'
keyword:
- small-angle X-ray scattering
- oxygen reduction
- disproportionation
- Li-air battery
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.26434/chemrxiv.11447775
month: '04'
oa: 1
oa_version: Preprint
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
status: public
title: In situ small-angle X-ray scattering reveals solution phase discharge of Li–O2
batteries with weakly solvating electrolytes
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 118
year: '2021'
...
---
_id: '10336'
abstract:
- lang: eng
text: Biological membranes can dramatically accelerate the aggregation of normally
soluble protein molecules into amyloid fibrils and alter the fibril morphologies,
yet the molecular mechanisms through which this accelerated nucleation takes place
are not yet understood. Here, we develop a coarse-grained model to systematically
explore the effect that the structural properties of the lipid membrane and the
nature of protein–membrane interactions have on the nucleation rates of amyloid
fibrils. We identify two physically distinct nucleation pathways—protein-rich
and lipid-rich—and quantify how the membrane fluidity and protein–membrane affinity
control the relative importance of those molecular pathways. We find that the
membrane’s susceptibility to reshaping and being incorporated into the fibrillar
aggregates is a key determinant of its ability to promote protein aggregation.
We then characterize the rates and the free-energy profile associated with this
heterogeneous nucleation process, in which the surface itself participates in
the aggregate structure. Finally, we compare quantitatively our data to experiments
on membrane-catalyzed amyloid aggregation of α-synuclein, a protein implicated
in Parkinson’s disease that predominately nucleates on membranes. More generally,
our results provide a framework for understanding macromolecular aggregation on
lipid membranes in a broad biological and biotechnological context.
acknowledgement: We thank T. C. T. Michaels for reading the manuscript. This work
was supported by the Academy of Medical Science (J.K. and A.Š.), the Cambridge Center
for Misfolding Diseases (T.P.J.K.), the Biotechnology and Biological Sciences Research
Council (T.P.J.K.), the Frances and Augustus Newman Foundation (T.P.J.K.), the European
Research Council Grant PhysProt Agreement 337969, the Wellcome Trust (A.Š. and T.P.J.K.),
the Royal Society (A.Š.), the Medical Research Council (J.K. and A.Š.), and the
UK Materials and Molecular Modeling Hub for computational resources, which is partially
funded by Engineering and Physical Sciences Research Council Grant EP/P020194/1.
article_processing_charge: No
article_type: original
author:
- first_name: Johannes
full_name: Krausser, Johannes
last_name: Krausser
- first_name: Tuomas P. J.
full_name: Knowles, Tuomas P. J.
last_name: Knowles
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
citation:
ama: Krausser J, Knowles TPJ, Šarić A. Physical mechanisms of amyloid nucleation
on fluid membranes. Proceedings of the National Academy of Sciences. 2020;117(52):33090-33098.
doi:10.1073/pnas.2007694117
apa: Krausser, J., Knowles, T. P. J., & Šarić, A. (2020). Physical mechanisms
of amyloid nucleation on fluid membranes. Proceedings of the National Academy
of Sciences. National Academy of Sciences. https://doi.org/10.1073/pnas.2007694117
chicago: Krausser, Johannes, Tuomas P. J. Knowles, and Anđela Šarić. “Physical Mechanisms
of Amyloid Nucleation on Fluid Membranes.” Proceedings of the National Academy
of Sciences. National Academy of Sciences, 2020. https://doi.org/10.1073/pnas.2007694117.
ieee: J. Krausser, T. P. J. Knowles, and A. Šarić, “Physical mechanisms of amyloid
nucleation on fluid membranes,” Proceedings of the National Academy of Sciences,
vol. 117, no. 52. National Academy of Sciences, pp. 33090–33098, 2020.
ista: Krausser J, Knowles TPJ, Šarić A. 2020. Physical mechanisms of amyloid nucleation
on fluid membranes. Proceedings of the National Academy of Sciences. 117(52),
33090–33098.
mla: Krausser, Johannes, et al. “Physical Mechanisms of Amyloid Nucleation on Fluid
Membranes.” Proceedings of the National Academy of Sciences, vol. 117,
no. 52, National Academy of Sciences, 2020, pp. 33090–98, doi:10.1073/pnas.2007694117.
short: J. Krausser, T.P.J. Knowles, A. Šarić, Proceedings of the National Academy
of Sciences 117 (2020) 33090–33098.
date_created: 2021-11-25T15:07:09Z
date_published: 2020-12-16T00:00:00Z
date_updated: 2021-11-25T15:35:58Z
day: '16'
doi: 10.1073/pnas.2007694117
extern: '1'
external_id:
pmid:
- '33328273'
intvolume: ' 117'
issue: '52'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.biorxiv.org/content/10.1101/2019.12.22.886267v2
month: '12'
oa: 1
oa_version: Published Version
page: 33090-33098
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Physical mechanisms of amyloid nucleation on fluid membranes
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 117
year: '2020'
...
---
_id: '10347'
abstract:
- lang: eng
text: Understanding the mechanism of action of compounds capable of inhibiting amyloid-fibril
formation is critical to the development of potential therapeutics against protein-misfolding
diseases. A fundamental challenge for progress is the range of possible target
species and the disparate timescales involved, since the aggregating proteins
are simultaneously the reactants, products, intermediates, and catalysts of the
reaction. It is a complex problem, therefore, to choose the states of the aggregating
proteins that should be bound by the compounds to achieve the most potent inhibition.
We present here a comprehensive kinetic theory of amyloid-aggregation inhibition
that reveals the fundamental thermodynamic and kinetic signatures characterizing
effective inhibitors by identifying quantitative relationships between the aggregation
and binding rate constants. These results provide general physical laws to guide
the design and optimization of inhibitors of amyloid-fibril formation, revealing
in particular the important role of on-rates in the binding of the inhibitors.
acknowledgement: We acknowledge support from Peterhouse, Cambridge (T.C.T.M.); the
Swiss National Science Foundation (T.C.T.M.); the Royal Society (A.S. and S.C.);
the Academy of Medical Sciences (A.S.); Sidney Sussex College, Cambridge (G.M.);
Newnham College, Cambridge (G.T.H.); the Wellcome Trust (T.P.J.K.); the Cambridge
Center for Misfolding Diseases (T.P.J.K. and M.V.); the Biotechnology and Biological
Sciences Research Council (T.P.J.K.); the Frances and Augustus Newman Foundation
(T.P.J.K.); and the Synapsis Foundation for Alzheimer’s disease (P.A.). The research
leading to these results has received funding from the European Research Council
(ERC) under the European Union’s Seventh Framework Program (FP7/2007-2013) through
the ERC Grant PhysProt (Agreement 337969).
article_processing_charge: No
article_type: original
author:
- first_name: Thomas C. T.
full_name: Michaels, Thomas C. T.
last_name: Michaels
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
- first_name: Georg
full_name: Meisl, Georg
last_name: Meisl
- first_name: Gabriella T.
full_name: Heller, Gabriella T.
last_name: Heller
- first_name: Samo
full_name: Curk, Samo
last_name: Curk
- first_name: Paolo
full_name: Arosio, Paolo
last_name: Arosio
- first_name: Sara
full_name: Linse, Sara
last_name: Linse
- first_name: Christopher M.
full_name: Dobson, Christopher M.
last_name: Dobson
- first_name: Michele
full_name: Vendruscolo, Michele
last_name: Vendruscolo
- first_name: Tuomas P. J.
full_name: Knowles, Tuomas P. J.
last_name: Knowles
citation:
ama: Michaels TCT, Šarić A, Meisl G, et al. Thermodynamic and kinetic design principles
for amyloid-aggregation inhibitors. Proceedings of the National Academy of
Sciences. 2020;117(39):24251-24257. doi:10.1073/pnas.2006684117
apa: Michaels, T. C. T., Šarić, A., Meisl, G., Heller, G. T., Curk, S., Arosio,
P., … Knowles, T. P. J. (2020). Thermodynamic and kinetic design principles for
amyloid-aggregation inhibitors. Proceedings of the National Academy of Sciences.
National Academy of Sciences. https://doi.org/10.1073/pnas.2006684117
chicago: Michaels, Thomas C. T., Anđela Šarić, Georg Meisl, Gabriella T. Heller,
Samo Curk, Paolo Arosio, Sara Linse, Christopher M. Dobson, Michele Vendruscolo,
and Tuomas P. J. Knowles. “Thermodynamic and Kinetic Design Principles for Amyloid-Aggregation
Inhibitors.” Proceedings of the National Academy of Sciences. National
Academy of Sciences, 2020. https://doi.org/10.1073/pnas.2006684117.
ieee: T. C. T. Michaels et al., “Thermodynamic and kinetic design principles
for amyloid-aggregation inhibitors,” Proceedings of the National Academy of
Sciences, vol. 117, no. 39. National Academy of Sciences, pp. 24251–24257,
2020.
ista: Michaels TCT, Šarić A, Meisl G, Heller GT, Curk S, Arosio P, Linse S, Dobson
CM, Vendruscolo M, Knowles TPJ. 2020. Thermodynamic and kinetic design principles
for amyloid-aggregation inhibitors. Proceedings of the National Academy of Sciences.
117(39), 24251–24257.
mla: Michaels, Thomas C. T., et al. “Thermodynamic and Kinetic Design Principles
for Amyloid-Aggregation Inhibitors.” Proceedings of the National Academy of
Sciences, vol. 117, no. 39, National Academy of Sciences, 2020, pp. 24251–57,
doi:10.1073/pnas.2006684117.
short: T.C.T. Michaels, A. Šarić, G. Meisl, G.T. Heller, S. Curk, P. Arosio, S.
Linse, C.M. Dobson, M. Vendruscolo, T.P.J. Knowles, Proceedings of the National
Academy of Sciences 117 (2020) 24251–24257.
date_created: 2021-11-26T07:48:27Z
date_published: 2020-09-14T00:00:00Z
date_updated: 2021-11-26T08:59:06Z
day: '14'
doi: 10.1073/pnas.2006684117
extern: '1'
external_id:
pmid:
- '32929030'
intvolume: ' 117'
issue: '39'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.biorxiv.org/content/10.1101/2020.02.22.960716
month: '09'
oa: 1
oa_version: Published Version
page: 24251-24257
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermodynamic and kinetic design principles for amyloid-aggregation inhibitors
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 117
year: '2020'
...
---
_id: '12188'
abstract:
- lang: eng
text: Molecular mechanisms enabling the switching and maintenance of epigenetic
states are not fully understood. Distinct histone modifications are often associated
with ON/OFF epigenetic states, but how these states are stably maintained through
DNA replication, yet in certain situations switch from one to another remains
unclear. Here, we address this problem through identification of Arabidopsis INCURVATA11
(ICU11) as a Polycomb Repressive Complex 2 accessory protein. ICU11 robustly immunoprecipitated
in vivo with PRC2 core components and the accessory proteins, EMBRYONIC FLOWER
1 (EMF1), LIKE HETEROCHROMATIN PROTEIN1 (LHP1), and TELOMERE_REPEAT_BINDING FACTORS
(TRBs). ICU11 encodes a 2-oxoglutarate-dependent dioxygenase, an activity associated
with histone demethylation in other organisms, and mutant plants show defects
in multiple aspects of the Arabidopsis epigenome. To investigate its primary molecular
function we identified the Arabidopsis FLOWERING LOCUS C (FLC) as a direct target
and found icu11 disrupted the cold-induced, Polycomb-mediated silencing underlying
vernalization. icu11 prevented reduction in H3K36me3 levels normally seen during
the early cold phase, supporting a role for ICU11 in H3K36me3 demethylation. This
was coincident with an attenuation of H3K27me3 at the internal nucleation site
in FLC, and reduction in H3K27me3 levels across the body of the gene after plants
were returned to the warm. Thus, ICU11 is required for the cold-induced epigenetic
switching between the mutually exclusive chromatin states at FLC, from the active
H3K36me3 state to the silenced H3K27me3 state. These data support the importance
of physical coupling of histone modification activities to promote epigenetic
switching between opposing chromatin states.
acknowledgement: We would like to thank Scott Berry for help with ICU-GFP nuclear
localization microscopy, Hao Yu and Lisha Shen for assistance with 6mA DNA methylation
analysis, Donna Gibson for graphic design assistance, and members of the C.D. and
Howard laboratories for helpful discussions. This work was funded by the European
Research Council grants to “MEXTIM” (to C.D.) and “SexMeth” (to X. Feng), by the
Biotechnological and Biological Sciences Research Council (BBSRC) Institute Strategic
Programmes GRO (BB/J004588/1), GEN (BB/P013511/1), BBSRC grant (to X. Feng) (BB/S009620/1),
and the Marie Sklodowska–Curie Postdoctoral Fellowships “UNRAVEL” (to R.H.B.) and
"WISDOM" (to X. Fang). Additional funding via the Wellcome Trust through a Senior
Research Fellowship (to J.R.) (103139) and a multiuser equipment grant (108504).
The Wellcome Centre for Cell Biology is supported by core funding from the Wellcome
Trust (203149).
article_processing_charge: No
article_type: original
author:
- first_name: Rebecca H.
full_name: Bloomer, Rebecca H.
last_name: Bloomer
- first_name: Claire E.
full_name: Hutchison, Claire E.
last_name: Hutchison
- first_name: Isabel
full_name: Bäurle, Isabel
last_name: Bäurle
- first_name: James
full_name: Walker, James
last_name: Walker
- first_name: Xiaofeng
full_name: Fang, Xiaofeng
last_name: Fang
- first_name: Pumi
full_name: Perera, Pumi
last_name: Perera
- first_name: Christos N.
full_name: Velanis, Christos N.
last_name: Velanis
- first_name: Serin
full_name: Gümüs, Serin
last_name: Gümüs
- first_name: Christos
full_name: Spanos, Christos
last_name: Spanos
- first_name: Juri
full_name: Rappsilber, Juri
last_name: Rappsilber
- first_name: Xiaoqi
full_name: Feng, Xiaoqi
id: e0164712-22ee-11ed-b12a-d80fcdf35958
last_name: Feng
orcid: 0000-0002-4008-1234
- first_name: Justin
full_name: Goodrich, Justin
last_name: Goodrich
- first_name: Caroline
full_name: Dean, Caroline
last_name: Dean
citation:
ama: Bloomer RH, Hutchison CE, Bäurle I, et al. The Arabidopsis epigenetic regulator
ICU11 as an accessory protein of polycomb repressive complex 2. Proceedings
of the National Academy of Sciences. 2020;117(28):16660-16666. doi:10.1073/pnas.1920621117
apa: Bloomer, R. H., Hutchison, C. E., Bäurle, I., Walker, J., Fang, X., Perera,
P., … Dean, C. (2020). The Arabidopsis epigenetic regulator ICU11 as an accessory
protein of polycomb repressive complex 2. Proceedings of the National Academy
of Sciences. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1920621117
chicago: Bloomer, Rebecca H., Claire E. Hutchison, Isabel Bäurle, James Walker,
Xiaofeng Fang, Pumi Perera, Christos N. Velanis, et al. “The Arabidopsis Epigenetic
Regulator ICU11 as an Accessory Protein of Polycomb Repressive Complex 2.” Proceedings
of the National Academy of Sciences. Proceedings of the National Academy of
Sciences, 2020. https://doi.org/10.1073/pnas.1920621117.
ieee: R. H. Bloomer et al., “The Arabidopsis epigenetic regulator ICU11
as an accessory protein of polycomb repressive complex 2,” Proceedings of the
National Academy of Sciences, vol. 117, no. 28. Proceedings of the National
Academy of Sciences, pp. 16660–16666, 2020.
ista: Bloomer RH, Hutchison CE, Bäurle I, Walker J, Fang X, Perera P, Velanis CN,
Gümüs S, Spanos C, Rappsilber J, Feng X, Goodrich J, Dean C. 2020. The Arabidopsis
epigenetic regulator ICU11 as an accessory protein of polycomb repressive complex
2. Proceedings of the National Academy of Sciences. 117(28), 16660–16666.
mla: Bloomer, Rebecca H., et al. “The Arabidopsis Epigenetic Regulator ICU11 as
an Accessory Protein of Polycomb Repressive Complex 2.” Proceedings of the
National Academy of Sciences, vol. 117, no. 28, Proceedings of the National
Academy of Sciences, 2020, pp. 16660–66, doi:10.1073/pnas.1920621117.
short: R.H. Bloomer, C.E. Hutchison, I. Bäurle, J. Walker, X. Fang, P. Perera, C.N.
Velanis, S. Gümüs, C. Spanos, J. Rappsilber, X. Feng, J. Goodrich, C. Dean, Proceedings
of the National Academy of Sciences 117 (2020) 16660–16666.
date_created: 2023-01-16T09:15:44Z
date_published: 2020-05-22T00:00:00Z
date_updated: 2023-05-08T10:53:55Z
day: '22'
ddc:
- '580'
department:
- _id: XiFe
doi: 10.1073/pnas.1920621117
extern: '1'
external_id:
pmid:
- '32601198'
file:
- access_level: open_access
checksum: cedee184cb12f454f2fba4158ff47db9
content_type: application/pdf
creator: alisjak
date_created: 2023-02-07T11:29:55Z
date_updated: 2023-02-07T11:29:55Z
file_id: '12526'
file_name: 2020_PNAS_Bloomer.pdf
file_size: 1105414
relation: main_file
success: 1
file_date_updated: 2023-02-07T11:29:55Z
has_accepted_license: '1'
intvolume: ' 117'
issue: '28'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7368280/
month: '05'
oa: 1
oa_version: Published Version
page: 16660-16666
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
issn:
- 0027-8424
- 1091-6490
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Arabidopsis epigenetic regulator ICU11 as an accessory protein of polycomb
repressive complex 2
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: 117
year: '2020'
...
---
_id: '7580'
abstract:
- lang: eng
text: The eukaryotic endomembrane system is controlled by small GTPases of the Rab
family, which are activated at defined times and locations in a switch-like manner.
While this switch is well understood for an individual protein, how regulatory
networks produce intracellular activity patterns is currently not known. Here,
we combine in vitro reconstitution experiments with computational modeling to
study a minimal Rab5 activation network. We find that the molecular interactions
in this system give rise to a positive feedback and bistable collective switching
of Rab5. Furthermore, we find that switching near the critical point is intrinsically
stochastic and provide evidence that controlling the inactive population of Rab5
on the membrane can shape the network response. Notably, we demonstrate that collective
switching can spread on the membrane surface as a traveling wave of Rab5 activation.
Together, our findings reveal how biochemical signaling networks control vesicle
trafficking pathways and how their nonequilibrium properties define the spatiotemporal
organization of the cell.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
article_processing_charge: No
article_type: original
author:
- first_name: Urban
full_name: Bezeljak, Urban
id: 2A58201A-F248-11E8-B48F-1D18A9856A87
last_name: Bezeljak
orcid: 0000-0003-1365-5631
- first_name: Hrushikesh
full_name: Loya, Hrushikesh
last_name: Loya
- first_name: Beata M
full_name: Kaczmarek, Beata M
id: 36FA4AFA-F248-11E8-B48F-1D18A9856A87
last_name: Kaczmarek
- first_name: Timothy E.
full_name: Saunders, Timothy E.
last_name: Saunders
- first_name: Martin
full_name: Loose, Martin
id: 462D4284-F248-11E8-B48F-1D18A9856A87
last_name: Loose
orcid: 0000-0001-7309-9724
citation:
ama: Bezeljak U, Loya H, Kaczmarek BM, Saunders TE, Loose M. Stochastic activation
and bistability in a Rab GTPase regulatory network. Proceedings of the National
Academy of Sciences. 2020;117(12):6504-6549. doi:10.1073/pnas.1921027117
apa: Bezeljak, U., Loya, H., Kaczmarek, B. M., Saunders, T. E., & Loose, M.
(2020). Stochastic activation and bistability in a Rab GTPase regulatory network.
Proceedings of the National Academy of Sciences. Proceedings of the National
Academy of Sciences. https://doi.org/10.1073/pnas.1921027117
chicago: Bezeljak, Urban, Hrushikesh Loya, Beata M Kaczmarek, Timothy E. Saunders,
and Martin Loose. “Stochastic Activation and Bistability in a Rab GTPase Regulatory
Network.” Proceedings of the National Academy of Sciences. Proceedings
of the National Academy of Sciences, 2020. https://doi.org/10.1073/pnas.1921027117.
ieee: U. Bezeljak, H. Loya, B. M. Kaczmarek, T. E. Saunders, and M. Loose, “Stochastic
activation and bistability in a Rab GTPase regulatory network,” Proceedings
of the National Academy of Sciences, vol. 117, no. 12. Proceedings of the
National Academy of Sciences, pp. 6504–6549, 2020.
ista: Bezeljak U, Loya H, Kaczmarek BM, Saunders TE, Loose M. 2020. Stochastic activation
and bistability in a Rab GTPase regulatory network. Proceedings of the National
Academy of Sciences. 117(12), 6504–6549.
mla: Bezeljak, Urban, et al. “Stochastic Activation and Bistability in a Rab GTPase
Regulatory Network.” Proceedings of the National Academy of Sciences, vol.
117, no. 12, Proceedings of the National Academy of Sciences, 2020, pp. 6504–49,
doi:10.1073/pnas.1921027117.
short: U. Bezeljak, H. Loya, B.M. Kaczmarek, T.E. Saunders, M. Loose, Proceedings
of the National Academy of Sciences 117 (2020) 6504–6549.
date_created: 2020-03-12T05:32:26Z
date_published: 2020-03-24T00:00:00Z
date_updated: 2023-09-07T13:17:06Z
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doi: 10.1073/pnas.1921027117
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name: Reconstitution of cell polarity and axis determination in a cell-free system
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title: Stochastic activation and bistability in a Rab GTPase regulatory network
type: journal_article
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volume: 117
year: '2020'
...