Structure of the radial spoke head and insights into its role in mechanoregulation of ciliary beating.
Structure of the radial spoke head and insights into its role in mechanoregulation of ciliary beating.
复制标题
径向辐条头的结构及其在纤毛跳动机械调节中的作用的见解。
DOI:
10.1038/s41594-020-00519-9
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发表时间:
2021-01
影响因子:
16.8
通讯作者:
Vale RD
中科院分区:
文献类型:
--
作者:
Grossman-Haham I;Coudray N;Yu Z;Wang F;Zhang N;Bhabha G;Vale RD
Motile cilia power cell locomotion and drive extracellular fluid flow by propagating bending waves from their base to tip. The coordinated bending of cilia requires mechanoregulation by the radial spoke (RS) protein complexes and the microtubule central pair (CP). Despite their importance for ciliary motility across eukaryotes, the molecular function of the RSs is unknown. Here, we reconstituted the Chlamydomonas reinhardtii RS head that abuts the CP and determined its structure using single-particle cryo-EM to 3.1 Å resolution, revealing a flat, negatively-charged surface supported by a rigid core of tightly intertwined proteins. Mutations in this core, corresponding to those involved in human ciliopathies, compromised stability of the recombinant complex, providing a molecular basis for disease. Partially reversing the negative charge on the RS surface impaired motility in C. reinhardtii. We propose that the RS head architecture is well-suited for mechanoregulation of ciliary beating through physical collisions with the CP.
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DOI:
10.1083/jcb.201111041
发表时间:
2012-07-09
期刊:
The Journal of cell biology
影响因子:
--
作者:
Gupta A;Diener DR;Sivadas P;Rosenbaum JL;Yang P
通讯作者:
Yang P
影响因子:
14.8
作者:
Kelley LA;Mezulis S;Yates CM;Wass MN;Sternberg MJ
通讯作者:
Sternberg MJ
影响因子:
2.9
作者:
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通讯作者:
Kamiya, Ritsu
DOI:
10.1165/rcmb.2014-0483oc
发表时间:
2015-10-01
影响因子:
6.4
作者:
Frommer, Adrien;Hjeij, Rim;Omran, Heymut
通讯作者:
Omran, Heymut
影响因子:
9.8
作者:
El Khouri, Elma;Thomas, Lucie;Amselem, Serge
通讯作者:
Amselem, Serge