Wdr47, Camsaps, and Katanin cooperate to generate ciliary central microtubules.
Wdr47, Camsaps, and Katanin cooperate to generate ciliary central microtubules.
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Wdr47、Camsaps 和 Katanin 合作生成睫状中央微管
DOI:
10.1038/s41467-021-26058-5
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发表时间:
2021-10-04
影响因子:
16.6
通讯作者:
Yan X
中科院分区:
文献类型:
--
作者:
Liu H;Zheng J;Zhu L;Xie L;Chen Y;Zhang Y;Zhang W;Yin Y;Peng C;Zhou J;Zhu X;Yan X
The axonemal central pair (CP) are non-centrosomal microtubules critical for planar ciliary beat. How they form, however, is poorly understood. Here, we show that mammalian CP formation requires Wdr47, Camsaps, and microtubule-severing activity of Katanin. Katanin severs peripheral microtubules to produce central microtubule seeds in nascent cilia. Camsaps stabilize minus ends of the seeds to facilitate microtubule outgrowth, whereas Wdr47 concentrates Camsaps into the axonemal central lumen to properly position central microtubules.Wdr47deficiency in mouse multicilia results in complete loss of CP, rotatory beat, and primary ciliary dyskinesia. Overexpression of Camsaps or their microtubule-binding regions induces central microtubules inWdr47−/−ependymal cells but at the expense of low efficiency, abnormal numbers, and wrong location. Katanin levels and activity also impact the central microtubule number. We propose that Wdr47, Camsaps, and Katanin function together for the generation of non-centrosomal microtubule arrays in polarized subcellular compartments.
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影响因子:
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