衣藻鞭毛的近端部分包含一组独特的内动力蛋白臂。
The proximal portion of Chlamydomonas flagella contains a distinct set of inner dynein arms.
作者信息
Piperno G, Ramanis Z
机构信息
Rockefeller University, New York, New York 10021.
出版信息
J Cell Biol. 1991 Feb;112(4):701-9. doi: 10.1083/jcb.112.4.701.
Abstract
A specific type of inner dynein arm is located primarily or exclusively in the proximal portion of Chlamydomonas flagella. This dynein is absent from flagella less than 6 microns long, is assembled during the second half of flagellar regeneration time and is resistant to extraction under conditions causing complete solubilization of two inner arm heavy chains and partial solubilization of three other heavy chains. This and other evidence described in this report suggest that the inner arm row is composed of five distinct types of dynein arms. Therefore, the units of three inner arms that repeat every 96 nm along the axoneme are composed of different dyneins in the proximal and distal portions of flagella.
摘要
一种特定类型的内动力蛋白臂主要或仅位于衣藻鞭毛的近端部分。长度小于6微米的鞭毛中不存在这种动力蛋白，它在鞭毛再生的后半段时间组装而成，并且在能使两条内臂重链完全溶解以及另外三条重链部分溶解的条件下仍能抵抗提取。本报告中描述的这一情况及其他证据表明，内臂排由五种不同类型的动力蛋白臂组成。因此，沿着轴丝每96纳米重复一次的三个内臂单元在鞭毛的近端和远端部分由不同的动力蛋白组成。
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