Monte Carlo simulation for statistical mechanics model of ion channel cooperativity in cell membranes

Details Monte Carlo simulation for statistical mechanics model of ion channel cooperativity in cell membranes Monte Carlo simulation for statistical mechanics model of ion channel cooperativity in cell membranes

2008-09-10

arxiv.org/abs/0809.1729v2

Physics

Biological Physics

Paper has been revised

Scientific paper

10.1103/PhysRevE.79.031919

Voltage-gated ion channels are key molecules for the generation and propagation of electrical signals in excitable cell membranes. The voltage-dependent switching of these channels between conducting and nonconducting states is a major factor in controlling the transmembrane voltage. In this study, a statistical mechanics model of these molecules has been discussed on the basis of a two-dimensional spin model. A new Hamiltonian and a new Monte Carlo simulation algorithm are introduced to simulate such a model. It was shown that the results well match the experimental data obtained from batrachotoxin-modified sodium channels in the squid giant axon using the cut-open axon technique.

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