PATTERN FORMATION BY ELECTROSTATIC SELF-ORGANIZATION OF MEMBRANE PROTEINS

被引:0
|
作者
Boedec, G. [1 ]
Jaeger, M. [1 ]
Homble, F. [2 ]
Leonetti, M. [3 ]
机构
[1] Aix Marseille Univ, M2P2, CNRS, UMR 7340,Cent Marseille, Technopole Chateau Gombert, F-13384 Marseille 13, France
[2] Univ Libre Bruxelles, SFMB, B-1050 Brussels, Belgium
[3] Aix Marseille Univ, IRPHE, CNRS, UMR 7342,Cent Marseille, F-13384 Marseille 13, France
关键词
Bioelectric activity; Biophysics; Pattern formation; instability; heteroclinic cycle; SYMMETRY-BREAKING; BIOMEMBRANES;
D O I
暂无
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The electric activity of biological cells and organs such as heart for example is at the origin of various phenomena of pattern formation. The electric membrane potential appears as the order parameter to characterize these spatiotemporal dynamics. A kind of patterns is characterized by a stationary spatial modulation of membrane potential along the cell, breaking a symmetry of the system. They are associated to transcellular currents. A mechanism proposed in literature is based on the coupling of the electric current produced by membrane proteins and their electrophoretic mobilities. Beyond its classical linear stability analysis, the numerical and theoretical analysis of this model offers a variety of spatiotemporal dynamics. Firstly, the background in the modelization of electric phenomena is recalled. Secondly, the analysis is focused on two nonlinear dynamics.
引用
收藏
页码:94 / 102
页数:9
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