Citation: Hyuck Joon Kwon, Kazuhiro Shikinaka, Akira Kakugo, Hidemitsu Furukawa, Yoshihito Osada, Jian Ping Gong. GROWTH AND MORPHOLOGY OF POLYMER-ACTIN COMPLEXES[J]. Chinese Journal of Polymer Science, ;2007, 25(1): 47-55. shu

GROWTH AND MORPHOLOGY OF POLYMER-ACTIN COMPLEXES

Received Date: 29 June 2006
Revised Date: 1 January 1900

F-actins are semi-flexible polyelectrolytes and can be assembled into large polymer-actin complex with polymorphism through electrostatic interaction with polycations. This study investigates the structural phase behavior and the growth of polymer-actin complexes in terms of its longitudinal and lateral sizes. Our results show that formation of polymer-actin complexes is cooperative, and morphology and growth of polymer-actin complexes depend on polycation species and concentrations of polycation and salt in a constant actin concentration. We found that the longitudinal growth and lateral growth of polymer-actin complexes are dominated by different factors. This induces the structural polymorphism of polymer-actin complexes. Major factors to influence the polymorphism of polymer-actin complexes in polyelectrolyte system have been discussed. Our results indicate that the semi-flexible polyelectrolyte nature of F-actins is important for controlling the morphology and growth of actin architectures in cell.
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