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Shear-driven instabilities of membrane tubes and dynamin-induced scission
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Al-Izzi, Sami C., Sens, Pierre and Turner, Matthew S. (2020) Shear-driven instabilities of membrane tubes and dynamin-induced scission. Physical Review Letters, 125 (1). 018101. doi:10.1103/PhysRevLett.125.018101 ISSN 0031-9007.
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Official URL: https://doi.org/10.1103/PhysRevLett.125.018101
Abstract
Motivated by the mechanics of dynamin-mediated membrane tube fission, we analyze the stability of fluid membrane tubes subjected to shear flow in azimuthal direction. We find a novel helical instability driven by the membrane shear flow which results in a nonequilibrium steady state for the tube fluctuations. This instability has its onset at shear rates that may be physiologically accessible under the action of dynamin and could also be probed using in vitro experiments on membrane nanotubes, e.g., using magnetic tweezers. We discuss how such an instability may play a role in the mechanism for dynamin-mediated membrane tube fission.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
SWORD Depositor: | Library Publications Router | ||||||||
Journal or Publication Title: | Physical Review Letters | ||||||||
Publisher: | American Physical Society | ||||||||
ISSN: | 0031-9007 | ||||||||
Official Date: | July 2020 | ||||||||
Dates: |
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Volume: | 125 | ||||||||
Number: | 1 | ||||||||
Article Number: | 018101 | ||||||||
DOI: | 10.1103/PhysRevLett.125.018101 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Open Access Version: |
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