Disruption of the mitotic kinesin Eg5 gene (Knsl1) results in early embryonic lethality

被引:37
作者
Chauviere, Muriel [1 ]
Kress, Chantal [2 ]
Kress, Michel [1 ]
机构
[1] Inst Andre Lwoff, CNRS, FRE Genet Mol & Integrat Fonct Cellulaires 2937, F-94801 Villejuif, France
[2] Inst Pasteur, CNRS, URA 2578, F-75724 Paris 15, France
关键词
mitotic kinesin-5; gene targeting; knockout; mouse preimplantation lethality;
D O I
10.1016/j.bbrc.2008.04.177
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
Eg5, a member of the widely conserved kinesin-5 family, is a plus-end-directed motor involved in separation of centrosomes, and in bipolar spindle formation and maintenance during mitosis in vertebrates. To investigate the requirement for Eg5 in mammalian development, we have generated Eg5 deficient mice by gene targeting. Heterozygous mice are healthy, fertile, and show no detectable phenotype, whereas Eg5(-/-) embryos die during early embryogenesis, prior to the implantation stage. This result shows that Eg5 is essential during early mouse development and cannot be compensated by another molecular motor. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:513 / 519
页数:7
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