Overly long centrioles and defective cell division upon excess of the SAS-4-related protein CPAP.
Overly long centrioles and defective cell division upon excess of the SAS-4-related protein CPAP.
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SAS-4 相关蛋白 CPAP 过量时,中心粒过长,细胞分裂有缺陷。
DOI:
10.1016/j.cub.2009.05.018
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发表时间:
2009-06-23
期刊:
影响因子:
9.2
通讯作者:
Goenczy, Pierre
中科院分区:
文献类型:
--
作者:
Kohlmaier, Gregor;Loncarek, Jadranka;Meng, Xing;McEwen, Bruce F.;Mogensen, Mette M.;Spektor, Alexander;Dynlacht, Brian D.;Khodjakov, Alexey;Goenczy, Pierre
The centrosome is the principal microtubule organizing center (MTOC) of animal cells. Accurate centrosome duplication is fundamental for genome integrity and entails the formation of one procentriole next to each existing centriole, once per cell cycle. The procentriole then elongates to eventually reach the same size as that of the centriole. The mechanisms that govern elongation of the centriolar cylinder and their potential relevance for cell division are not known. Here, we show that the SAS-4-related protein CPAP is required for centrosome duplication in cycling human cells. Furthermore, we demonstrate that CPAP overexpression results in the formation of abnormal long centrioles. This also promotes formation of more than one procentriole in the vicinity of such overly long centrioles, eventually resulting in the presence of supernumerary MTOCs. This in turn leads to multipolar spindle assembly and cytokinesis defects. Overall, our findings suggest that centriole length must be carefully regulated to restrict procentriole number and thus ensure accurate cell division.
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影响因子:
3.3
作者:
Keller, Lani C.;Geimer, Stefan;Marshall, Wallace F.
通讯作者:
Marshall, Wallace F.
影响因子:
11.8
作者:
Kleylein-Sohn, Julia;Westendorf, Jens;Nigg, Erich A.
通讯作者:
Nigg, Erich A.
影响因子:
21.3
作者:
Loncarek, Jadranka;Hergert, Polla;Khodjakov, Alexey
通讯作者:
Khodjakov, Alexey
DOI:
10.1083/jcb.141.1.163
发表时间:
1998-04-06
期刊:
The Journal of cell biology
影响因子:
--
作者:
Dictenberg JB;Zimmerman W;Sparks CA;Young A;Vidair C;Zheng Y;Carrington W;Fay FS;Doxsey SJ
通讯作者:
Doxsey SJ
影响因子:
9.2
作者:
Delattre, Marie;Canard, Coralie;Gonczy, Pierre
通讯作者:
Gonczy, Pierre