聚赖氨酸诱导的肌动蛋白副晶体的多态性
Polymorphism of actin paracrystals induced by polylysine.
作者信息
Fowler W E, Aebi U
出版信息
J Cell Biol. 1982 May;93(2):452-8. doi: 10.1083/jcb.93.2.452.
Abstract
We describe a method for the induction of different polymorphic forms of actin filament paracrystals. This polymorphism is probably based on differences in the stagger and/or polarity of adjacent filaments in single-layered paracrystals and by superposition of different layers in multilayered paracrystals. The helical parameters defining the filament geometry are indistinguishable for the different polymorphic forms observed and for the four different actins used. Analysis of these paracrystals, some of which are ordered to better than 2.5 nm, should provide a reference structure suitable for alignment and orientation within the actin filament of high resolution models of the actin monomer obtained from crystal data.
摘要
我们描述了一种诱导肌动蛋白丝副晶体不同多晶型的方法。这种多态性可能基于单层副晶体中相邻丝的交错和/或极性差异，以及多层副晶体中不同层的叠加。对于观察到的不同多晶型和所使用的四种不同肌动蛋白，定义丝几何形状的螺旋参数是无法区分的。对这些副晶体（其中一些的有序度优于2.5纳米）的分析，应该能提供一个适合于从晶体数据获得的肌动蛋白单体高分辨率模型在肌动蛋白丝内进行排列和定向的参考结构。
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本文引用的文献
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Structure of actin paracrystals induced by nerve growth factor.神经生长因子诱导的肌动蛋白副晶体结构
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