Published March 23, 2004
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Journal Article
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Analytic models for mechanotransduction: gating a mechanosensitive channel
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Abstract
Analytic estimates for the forces and free energy generated by bilayer deformation reveal a compelling and intuitive model for MscL channel gating analogous to the nucleation of a second phase. We argue that the competition between hydrophobic mismatch and tension results in a surprisingly rich story that can provide both a quantitative comparison with measurements of opening tension for MscL when reconstituted in bilayers of different thickness, and qualitative insights into the function of the MscL channel and other transmembrane proteins.
Additional Information
© 2004 by the National Academy of Sciences. Edited by Douglas C. Rees, California Institute of Technology, Pasadena, CA, and approved January 22, 2004 (received for review November 24, 2003). Published online before print March 15, 2004, 10.1073/pnas.0307804101 We thank Doug Rees, Tom Powers, Jane Kondev, Klaus Schulten, Evan Evans, Sergei Sukharev, Eduardo Perozo, Olaf Andersen, Sylvio May, Ben Freund, Mandar Inamdar, and an anonymous referee for useful discussions, suggestions, and corrections. This work was supported by the Keck Foundation, National Science Foundation Grant CMS-0301657, and the National Science Foundation-funded Center for Integrative Multiscale Modeling and Simulation. P.W. received support through a National Science Foundation fellowship. This paper was submitted directly (Track II) to the PNAS office.Attached Files
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Identifiers
- PMCID
- PMC384697
- Eprint ID
- 1363
- Resolver ID
- CaltechAUTHORS:WIGpnas04
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2006-01-12Created from EPrint's datestamp field
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2023-06-01Created from EPrint's last_modified field