A human homolog of Drosophila warts tumor suppressor, h-warts, localized to mitotic apparatus and specifically phosphorylated during mitosis

被引:90
作者
Nishiyama, Y
Hirota, T
Morisaki, T
Hara, T
Marumoto, T
Iida, S
Makino, K
Yamamoto, H
Hiraoka, T
Kitamura, N
Saya, H
机构
[1] Kumamoto Univ, Sch Med, Dept Tumor Genet & Biol, Kumamoto 8600811, Japan
[2] Kumamoto Univ, Dept Surg 1, Kumamoto 8600811, Japan
[3] Kumamoto Univ, Sch Med, Dept Pharmacol, Kumamoto 8600811, Japan
关键词
centrosome; mitotic spindle; Cdc2; midbody; nocodazole; chromosome; 6q;
D O I
10.1016/S0014-5793(99)01224-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Ne identified a human homolog of Drosophila warts tumor suppressor gene, termed h-warts, which was mapped at chromosome 6q24-25.1, The h-warts protein has a serine/threonine kinase domain and is localized to centrosomes in interphase cells. However, it becomes localized to the mitotic apparatus, including spindle pole bodies, mitotic spindle, and midbody, in a highly dynamic manner during mitosis, Furthermore, h-warts is specifically phosphorylated in cells at mitotic phase, most likely by Cdc2 kinase, These findings suggest that h-warts functions as a component of the mitotic apparatus and is involved in proper progression of mitosis.
引用
收藏
页码:159 / 165
页数:7
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