Cardiolipin-containing lipid membranes attract the bacterial cell division protein diviva

Labajová N, Baranova NS, Jurásek M, Vácha R, Loose M, Barák I. 2021. Cardiolipin-containing lipid membranes attract the bacterial cell division protein diviva. International Journal of Molecular Sciences. 22(15), 8350.

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Author
Labajová, Naďa; Baranova, NataliaISTA ; Jurásek, Miroslav; Vácha, Robert; Loose, MartinISTA ; Barák, Imrich
Department
Abstract
DivIVA is a protein initially identified as a spatial regulator of cell division in the model organism Bacillus subtilis, but its homologues are present in many other Gram-positive bacteria, including Clostridia species. Besides its role as topological regulator of the Min system during bacterial cell division, DivIVA is involved in chromosome segregation during sporulation, genetic competence, and cell wall synthesis. DivIVA localizes to regions of high membrane curvature, such as the cell poles and cell division site, where it recruits distinct binding partners. Previously, it was suggested that negative curvature sensing is the main mechanism by which DivIVA binds to these specific regions. Here, we show that Clostridioides difficile DivIVA binds preferably to membranes containing negatively charged phospholipids, especially cardiolipin. Strikingly, we observed that upon binding, DivIVA modifies the lipid distribution and induces changes to lipid bilayers containing cardiolipin. Our observations indicate that DivIVA might play a more complex and so far unknown active role during the formation of the cell division septal membrane.
Publishing Year
Date Published
2021-08-01
Journal Title
International Journal of Molecular Sciences
Acknowledgement
We thank Daniela Krajˇcíkova, Katarína Muchová, Zuzana Chromíkova and other members of Barák’s laboratory for useful discussions, suggestions and help. Special thanks also to Emília Chovancová for technical support. We are grateful to Juraj Labaj for drawing the model and for help with graphics. Many thanks to all members of Loose’s laboratory: Maria del Mar López, Paulo Caldas, Philipp Radler, and other members of the Loose’s laboratory for sharing their knowledge of SLB preparation and TIRF experiment chambers, for sharing coverslips and for help with the TIRF microscope and data analysis. We also thank the members of the Dept. of Biochemistry of Biomembranes at the Institute of Animal Biochemistry and Genetics, CBs SAS for their help with preparing the lipid mixtures. We thank J. Bauer for critically reading the manuscript.
Volume
22
Issue
15
Article Number
8350
ISSN
eISSN
IST-REx-ID

Cite this

Labajová N, Baranova NS, Jurásek M, Vácha R, Loose M, Barák I. Cardiolipin-containing lipid membranes attract the bacterial cell division protein diviva. International Journal of Molecular Sciences. 2021;22(15). doi:10.3390/ijms22158350
Labajová, N., Baranova, N. S., Jurásek, M., Vácha, R., Loose, M., & Barák, I. (2021). Cardiolipin-containing lipid membranes attract the bacterial cell division protein diviva. International Journal of Molecular Sciences. MDPI. https://doi.org/10.3390/ijms22158350
Labajová, Naďa, Natalia S. Baranova, Miroslav Jurásek, Robert Vácha, Martin Loose, and Imrich Barák. “Cardiolipin-Containing Lipid Membranes Attract the Bacterial Cell Division Protein Diviva.” International Journal of Molecular Sciences. MDPI, 2021. https://doi.org/10.3390/ijms22158350.
N. Labajová, N. S. Baranova, M. Jurásek, R. Vácha, M. Loose, and I. Barák, “Cardiolipin-containing lipid membranes attract the bacterial cell division protein diviva,” International Journal of Molecular Sciences, vol. 22, no. 15. MDPI, 2021.
Labajová N, Baranova NS, Jurásek M, Vácha R, Loose M, Barák I. 2021. Cardiolipin-containing lipid membranes attract the bacterial cell division protein diviva. International Journal of Molecular Sciences. 22(15), 8350.
Labajová, Naďa, et al. “Cardiolipin-Containing Lipid Membranes Attract the Bacterial Cell Division Protein Diviva.” International Journal of Molecular Sciences, vol. 22, no. 15, 8350, MDPI, 2021, doi:10.3390/ijms22158350.
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2021-08-16
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