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Issue 1, 2007
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Curvature and spatial organization in biological membranes

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Abstract

Cellular membranes bend and curve into a multitude of shapes as they perform various functions. These deformations make use of the remarkable material properties of biological membranes inherent in their nature as two-dimensional fluids. The curvature of membranes is controlled by the constituent proteins and lipids, but conversely, curvature itself provides mechanisms for organizing mobile membrane molecules. In this article we survey recent experiments that have uncovered intriguing connections between mechanics and biochemistry at membranes, focusing on the influence of molecular shape on curvature, links between phase separation and curvature, and membrane bending at inter-cellular contacts. We describe the concepts that emerge from these studies, especially the existence of long-range, curvature-mediated mechanisms for spatial organization in membranes, and highlight open areas for future research.

Graphical abstract: Curvature and spatial organization in biological membranes

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Article information


Submitted
19 Jun 2006
Accepted
11 Sep 2006
First published
05 Oct 2006

Soft Matter, 2007,3, 24-33
Article type
Emerging Area

Curvature and spatial organization in biological membranes

R. Parthasarathy and J. T. Groves, Soft Matter, 2007, 3, 24
DOI: 10.1039/B608631D

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