Mechanism on Polarity Sorting of Actin Bundles Formed with Polycations

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• 作者：Kazuhiro Shikinaka ; Akira Kakugo ; Yoshihito Osada ; Jian Ping Gong
• 刊名：Langmuir
• 出版年：2009
• 出版时间：February 3, 2009
• 年：2009
• 卷：25
• 期：3
• 页码：1554-1557
• 全文大小：163K
• 年卷期：v.25,no.3(February 3, 2009)
• ISSN：1520-5827

文摘

In this paper we explored factors that determine the polarity of an Actin bundle formed with polycation through electrostatic interaction. We found that the polarity decreases with an increase in the polycation concentration while it hardly depends on the KCl salt concentration. Additionally, the polarity of the Actin bundle increases with an increase in the degree of polymerization of the polycation at a constant polymer concentration. From these results we proposed that the kinetics of nuclei formation determines the polarity of the Actin bundle.