Rootletin prevents Cep68 from VHL-mediated proteasomal degradation to maintain centrosome cohesion.
Rootletin prevents Cep68 from VHL-mediated proteasomal degradation to maintain centrosome cohesion.
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Rootletin 可防止 Cep68 受到 VHL 介导的蛋白酶体降解,以维持中心体凝聚力。
DOI:
10.1016/j.bbamcr.2017.01.007
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发表时间:
2017-04
期刊:
影响因子:
--
通讯作者:
Li Yuan
中科院分区:
文献类型:
--
作者:
Weixiao Liu;Dachuan Zhang;Wei Li;Li Yuan
Centrosome cohesion, mostly regarded as a proteinaceous linker between parental centrioles, ensures the interphase centrosome(s) to function as a single microtubule-organizing center. Maintenance of centrosome cohesion counts on a number of centrosomal linker proteins because depletion of any of those leads to premature centrosome separation in interphase, termed centrosome splitting. However, the underlying mechanisms of the dependence are unknown. Here, we show that absence of Rootletin triggers the von Hippel-Lindau tumour suppressor protein (VHL)-mediated proteasomal degradation of Cep68 and, in turn, results in centrosome splitting. The VHL E3 ligase complex ubiquitinates Cep68in vitroandin vivo. Co-silencing of Rootletin and VHL reverts Cep68 loss and centrosome splitting. Expression of a stable mutant of Cep68, either diminishing its polyubiquitylation or eliminating binding to β-domain of VHL, also suppresses centrosome splitting provoked by Rootletin depletion. We propose that the archetypal linker protein Rootletin maintains centrosome cohesion in part through inhibition of VHL-mediated Cep68 degradation.
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影响因子:
64.8
作者:
Diao, Jiajie;Liu, Rong;Rong, Yueguang;Zhao, Minglei;Zhang, Jing;Lai, Ying;Zhou, Qiangjun;Wilz, Livia M.;Li, Jianxu;Vivona, Sandro;Pfuetzner, Richard A.;Brunger, Axel T.;Zhong, Qing
通讯作者:
Zhong, Qing
DOI:
10.1073/pnas.1608783113
发表时间:
2016-08-16
影响因子:
11.1
作者:
Cervenka, Igor;Valnohova, Jana;Bryja, Vitezslav
通讯作者:
Bryja, Vitezslav
影响因子:
21.3
作者:
Mardin, Balca R.;Lange, Cornelia;Baxter, Joanne E.;Hardy, Tara;Scholz, Sebastian R.;Fry, Andrew M.;Schiebel, Elmar
通讯作者:
Schiebel, Elmar
影响因子:
4.4
作者:
Hou X;Zhang W;Xiao Z;Gan H;Lin X;Liao S;Han C
通讯作者:
Han C
影响因子:
56.9
作者:
Kamura, T;Koepp, DM;Conway, JW
通讯作者:
Conway, JW