Membrane curvature and its generation by BAR proteins

Carsten Mim, Vinzenz M. Unger*

*Corresponding author for this work

Research output: Contribution to journalReview article

151 Scopus citations

Abstract

Membranes are flexible barriers that surround the cell and its compartments. To execute vital functions such as locomotion or receptor turnover, cells need to control the shapes of their membranes. In part, this control is achieved through membrane-bending proteins, such as the Bin/amphiphysin/Rvs (BAR) domain proteins. Many open questions remain about the mechanisms by which membrane-bending proteins function. Addressing this shortfall, recent structures of BAR protein:membrane complexes support existing mechanistic models, but also produced novel insights into how BAR domain proteins sense, stabilize, and generate curvature. Here we review these recent findings, focusing on how BAR proteins interact with the membrane, and how the resulting scaffold structures might aid the recruitment of other proteins to the sites where membranes are bent.

Original languageEnglish (US)
Pages (from-to)526-533
Number of pages8
JournalTrends in Biochemical Sciences
Volume37
Issue number12
DOIs
StatePublished - Dec 2012

Keywords

  • Amphipathic wedge
  • BAR domain
  • CryoEM
  • Membrane curvature
  • Membrane remodeling
  • Scaffold

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology

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