The CENP-O complex requirement varies among different cell types.
The CENP-O complex requirement varies among different cell types.
复制标题
CENP-O复合物需求在不同的细胞类型之间各不相同。
DOI:
10.1007/s10577-014-9404-1
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发表时间:
2014-09
影响因子:
2.6
通讯作者:
Fukagawa, Tatsuo
中科院分区:
文献类型:
--
作者:
Kagawa, Naoko;Hori, Tetsuya;Hoki, Yuko;Hosoya, Osamu;Tsutsui, Kimiko;Saga, Yumiko;Sado, Takashi;Fukagawa, Tatsuo
CENP-U (CENP-50) is a component of the CENP-O complex, which includes CENP-O, CENP-P, CENP-Q, CENP-R, and CENP-U and is constitutively localized at kinetochores throughout the cell cycle in vertebrates. Although CENP-U deficiency results in some mitotic defects in chicken DT40 cells, CENP-U-deficient chicken DT40 cells are viable. To examine the functional roles of CENP-U in an organism-dependent context, we generated CENP-U-deficient mice. The CENP-U-deficient mice died during early embryogenesis (approximately E7.5). Thus, conditional CENP-U-deficient mouse ES cells were generated to analyze CENP-U-deficient phenotypes at the cell level. When CENP-U was disrupted in the mouse ES cells, all CENP-O complex proteins disappeared from kinetochores. In contrast, other kinetochore proteins were recruited in CENP-U-deficient mouse ES cells as CENP-U-deficient DT40 cells. However, the CENP-U-deficient ES cells died after exhibiting abnormal mitotic behavior. Although CENP-U was essential for cell viability during mouse early embryogenesis, CENP-U-deficient mouse embryonic fibroblast cells were viable, similar to the DT40 cells. Thus, although both DT40 and ES cells with CENP-U deficiency have similar mitotic defects, cellular responses to mitotic defects vary among different cell types. The online version of this article (doi:10.1007/s10577-014-9404-1) contains supplementary material, which is available to authorized users.
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影响因子:
5.3
作者:
Minoshima, Y;Hori, T;Fukagawa, T
通讯作者:
Fukagawa, T
影响因子:
64.5
作者:
Hori, Tetsuya;Amano, Miho;Fukagawa, Tatsuo
通讯作者:
Fukagawa, Tatsuo
影响因子:
4.8
作者:
Hua, Shasha;Wang, Zhikai;Yao, Xuebiao
通讯作者:
Yao, Xuebiao
影响因子:
12.3
作者:
Meraldi P;McAinsh AD;Rheinbay E;Sorger PK
通讯作者:
Sorger PK
影响因子:
4.8
作者:
Kang, Young H.;Park, Chi-Hoon;Lee, Kyung S.
通讯作者:
Lee, Kyung S.