Statistical mechanics of lipid membranes. Protein correlation functions and lipid ordering.
Statistical mechanics of lipid membranes. Protein correlation functions and lipid ordering.
复制标题
脂质膜的统计力学。
DOI:
10.1016/s0006-3495(84)84232-0
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发表时间:
1984
影响因子:
3.4
通讯作者:
Chan,SI
中科院分区:
文献类型:
--
作者:
Pearson,LT;Edelman,J;Chan,SI
An expression is derived for the lipid-mediated intermolecular interaction between protein molecules embedded in a lipid bilayer. It is assumed that protein particles are accommodated by the bilayer, but they distort the lipids in some manner from their equilibrium protein-free configuration. We treat this situation by expanding the free energy density in the plane of the membrane as a Taylor series in some arbitrary parameter and its gradient. Minimization of the total membrane energy for a given particle configuration yields the interparticle interaction energy for that configuration. A test of the model is provided by measurement of the protein-protein pair distribution function from freeze-fracture micrographs of partially aggregated membranes. The measured functions can be simulated by adjustment of two parameters (a) a lipid correlation length that characterizes the distance over which a distortion of the bilayers is transmitted laterally through the bilayer, and (b) a term quantifying the energy of the protein-lipid interaction at the protein-lipid boundary. Correlation lengths obtained by fitting the calculated particle distribution functions to the data are found to be several nanometers. Protein-lipid interaction energies are of the order of a few kT.
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影响因子:
2.9
作者:
A. Watts;I. Volotovski;D. Marsh
通讯作者:
D. Marsh
影响因子:
5.6
作者:
R. Cherry;U. Müller;R. Henderson;M. P. Heyn
通讯作者:
M. P. Heyn
DOI:
10.1016/0005-2736(72)90037-5
发表时间:
1972
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
V. Speth;D. Wallach;E. Weidekamm;H. Knüfermann
通讯作者:
H. Knüfermann
DOI:
--
发表时间:
1979
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
R. P. Pearson;S. Hui;T. P. Stewart
通讯作者:
T. P. Stewart
DOI:
10.1016/s0022-5320(76)80076-7
发表时间:
1976
期刊:
Journal of ultrastructure research
影响因子:
--
作者:
T. P. Copps;W. S. Chelack;A. Petkau
通讯作者:
A. Petkau