LATERAL DIFFUSION IN A MIXTURE OF MOBILE AND IMMOBILE PARTICLES - A MONTE-CARLO STUDY

被引:60
作者
SAXTON, MJ [1 ]
机构
[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,CHEM BIODYNAM LAB,BERKELEY,CA 94720
关键词
D O I
10.1016/S0006-3495(90)82470-X
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
The lateral diffusion coefficient for mixtures of mobile and immobile particles is obtained from Monte Carlo calculations of random walks by mobile tracers in the presence of immobile obstacles on a triangular lattice. The diffusion coefficient of the mobile species is obtained as a function of the area fractions of mobile and immobile species. The results are applied to diffusion of band 3 in the erythrocyte membrane, and indicate that obstruction of diffusion of mobile band 3 by band 3 and glycophorin attached to the membrane skeleton is not sufficient to explain the observed diffusion coefficient. © 1990, The Biophysical Society. All rights reserved.
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页码:1303 / 1306
页数:4
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