在带正电的脂质体表面形成的肌动蛋白副晶片

Journal of ultrastructure research Pub Date : 1985-10-01 DOI:10.1016/0889-1605(85)90084-9

Lise Rioux, Claude Gicquaud

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引用次数: 21

摘要

f -肌动蛋白的准晶聚集体自发地聚集在带正电的脂质体表面。这种单层的准晶阵列由平行和并列排列的肌动蛋白丝组成，并显示出典型的36nm周期性，对应于双螺旋链的半节距。纯肌动蛋白的结晶是肌动蛋白与带正电的脂质直接相互作用的结果，而不会发生在带负电或中性的脂质上。

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Actin paracrystalline sheets formed at the surface of positively charged liposomes

Paracrystalline aggregates of F-actin spontaneously assemble at the surface of positively charged liposomes. This single-layered paracrystalline array is made up of parallel and juxtaposed actin filaments aligned in register and showing the typical 36-nm periodicity which corresponds to the half-pitch of the double helix strand. This crystallization of pure actin results from a direct interaction between actin and positively charged lipids and does not occur with negative or neutral lipids.

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Journal of ultrastructure research

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