Claspin, a regulator of Chk1 in DNA replication stress pathway

被引:64
作者
Chini, CCS [1 ]
Chen, JJ [1 ]
机构
[1] Mayo Clin & Mayo Fdn, Dept Oncol, Rochester, MN 55902 USA
关键词
claspin; checkpoint kinase; DNA replication;
D O I
10.1016/j.dnarep.2004.03.001
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Regulation of the vertebrate checkpoint kinase Chk1 involves several protein complexes including the recently identified protein Claspin. Claspin associates with Chk1 upon replication stress and DNA damage and is required for Chk1 activation in both Xenopus and human systems. More importantly, Claspin is involved in regulation of cell cycle checkpoints. Here, we discuss the emerging roles of Claspin in the Chk1 pathway and its functions in checkpoint control. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:1033 / 1037
页数:5
相关论文
共 27 条
[1]   Mrc1 transduces signals of DNA replication stress to activate Rad53 [J].
Alcasabas, AA ;
Osborn, AJ ;
Bachant, J ;
Hu, FH ;
Werler, PJH ;
Bousset, K ;
Furuya, K ;
Diffley, JFX ;
Carr, AM ;
Elledge, SJ .
NATURE CELL BIOLOGY, 2001, 3 (11) :958-965
[2]   Chk1 and Chk2 kinases in checkpoint control and cancer [J].
Bartek, J ;
Lukas, J .
CANCER CELL, 2003, 3 (05) :421-429
[3]  
Brown EJ, 2000, GENE DEV, V14, P397
[4]   Human claspin is required for replication checkpoint control [J].
Christiano, C ;
Chini, S ;
Chen, J .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2003, 278 (32) :30057-30062
[5]   Targeted disruption of the cell-cycle checkpoint gene ATR leads to early embryonic lethality in mice [J].
de Klein, A ;
Muijtjens, M ;
van Os, R ;
Verhoeven, Y ;
Smit, B ;
Carr, AM ;
Lehmann, AR ;
Hoeijmakers, JHJ .
CURRENT BIOLOGY, 2000, 10 (08) :479-482
[6]  
Guo N, 2002, CELL GROWTH DIFFER, V13, P77
[7]   An ATR- and Chk1-dependent S checkpoint inhibits replicon initiation following UVC-induced DNA damage [J].
Heffernan, TP ;
Simpson, DA ;
Frank, AR ;
Heinloth, AN ;
Paules, RS ;
Cordeiro-Stone, M ;
Kaufmann, WK .
MOLECULAR AND CELLULAR BIOLOGY, 2002, 22 (24) :8552-8561
[8]   Phosphorylated claspin interacts with a phosphate-binding site in the kinase domain of Chk1 during ATR-mediated activation [J].
Jeong, SY ;
Kumagai, A ;
Lee, J ;
Dunphy, WG .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2003, 278 (47) :46782-46788
[9]   Regulation of Chk1 includes chromatin association and 14-3-3 binding following phosphorylation on Ser-345 [J].
Jiang, KC ;
Pereira, E ;
Maxfield, M ;
Russell, B ;
Goudelock, DM ;
Sanchez, Y .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2003, 278 (27) :25207-25217
[10]   The many substrates and functions of ATM [J].
Kastan, MB ;
Lim, DS .
NATURE REVIEWS MOLECULAR CELL BIOLOGY, 2000, 1 (03) :179-186