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Article Dans Une Revue Soft Matter Année : 2021

Comparing physical mechanisms for membrane curvature-driven sorting of BAR-domain proteins

Résumé

Protein enrichment at specific membrane locations in cells is crucial for many cellular functions. It is well-recognized that the ability of some proteins to sense membrane curvature contributes partly to their enrichment in highly curved cellular membranes. In the past, different theoretical models have been developed to reveal the physical mechanisms underlying curvature-driven protein sorting. This review aims to provide a detailed discussion of the two continuous models that are based on the Helfrich elasticity energy, (1) the spontaneous curvature model and (2) the curvature mismatch model. These two models are commonly applied to describe experimental observations of protein sorting. We discuss how they can be used to explain the curvature-induced sorting data of two BAR proteins, amphiphysin and centaurin. We further discuss how membrane rigidity, and consequently the membrane curvature generated by BAR proteins, could influence protein organization on the curved membranes. Finally, we address future directions in extending these models to describe some cellular phenomena involving protein sorting.
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Dates et versions

hal-03206494 , version 1 (23-04-2021)

Identifiants

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Feng-Ching Tsai, Mijo Simunovic, Benoit Sorre, Aurélie Bertin, John Manzi, et al.. Comparing physical mechanisms for membrane curvature-driven sorting of BAR-domain proteins. Soft Matter, 2021, 17 (16), pp.4254-4265. ⟨10.1039/d0sm01573c⟩. ⟨hal-03206494⟩
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