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Filament of F-actin is formed from a linear array of G-actin and exhibits the characteristics as a negatively charged stiff polyelectrolyte with the persistence length above 1 mum. In living cellular system, F-actins from thick bundles with the help of specific proteins as the mediator. It has been found that bundling of F-actin filaments is generated with various cationic species, such as Fe3+ ,...
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