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Activation of the Protein kinase p38 in the Spindle Assembly Checkpoint and Mitotic Arrest

机译:主轴装配检查点和有丝分裂逮捕中蛋白激酶p38的激活

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摘要

The mitogen-activated protein kinase (MAPK) superfamily comprises classical MAPK (also called ERK), c-Jun amino-terminal or stress-activated protein kinase (JNK or SAPK), and p38. Although MAPK is essential for meiotic processes in Xenopus oocytes and the spindle assembly checkpoint in Xenopus egg extracts, the role of members of the MAPK superfamily inM phase or the spindle assembly checkpoint during somatic cell cycles has not been elucidated. The kinse p38, but not MAPK or JNK, was activated in mammalian cultured cells when the cells were arrested in M phase by disruption of the spindle with nocodazole.
机译:丝裂原激活的蛋白激酶(MAPK)超家族包括经典MAPK(也称为ERK),c-Jun氨基末端或应激激活的蛋白激酶(JNK或SAPK)和p38。尽管MAPK对于非洲爪蟾卵母细胞的减数分裂过程和非洲爪蟾卵提取物中的纺锤体组装检查点至关重要,但尚未阐明MAPK超家族成员在M期或体细胞周期中纺锤体组装检查点的作用。当哺乳动物细胞中的诺考达唑破坏纺锤体使细胞停滞在M期时,激酶p38而不是MAPK或JNK被激活。

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