Phase separation in biological membranes: integration of theory and experiment.
Phase separation in biological membranes: integration of theory and experiment.
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DOI:
10.1146/annurev.biophys.093008.131238
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发表时间:
2010
影响因子:
12.4
通讯作者:
Genin GM
中科院分区:
文献类型:
--
作者:
Elson EL;Fried E;Dolbow JE;Genin GM
Lipid bilayer model membranes can undergo transitions between ordered and disordered phases, and membranes that contain a mixture of lipid species can undergo phase separations. Studies of these transformations are of interest for what they can tell us about the interaction energies of lipid molecules of different species and conformations. Nanoscopic phases can provide a model for membrane rafts, which have important biological functions in cell membranes. Important questions are whether lipid nanodomains can exist in stable equilibrium in membranes and what is the distribution of their sizes in membranes of different composition. It is also important to know the lifetimes of nanodomains. Theoretical methods have supplied much important information on these questions, but better experimental methods are needed to detect and characterize nanodomains under normal membrane conditions. This review summarizes linkages between theoretical and experimental studies of phase separation in lipid bilayer model membranes.
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