Activation of apoptosis signal regulating kinase 1 (ASK1) by the adapter protein Daxx

被引:514
作者
Chang, HY
Nishitoh, H
Yang, XL
Ichijo, H
Baltimore, D
机构
[1] Tokyo Med & Dent Univ, Fac Dent, Dept Biomat Sci, Bunkyo Ku, Tokyo 1138549, Japan
[2] MIT, Dept Biol, Cambridge, MA 02138 USA
[3] Japanese Fdn Canc Res, Inst Canc, Dept Biochem, Toshima Ku, Tokyo 170, Japan
[4] CALTECH, Pasadena, CA 91125 USA
关键词
D O I
10.1126/science.281.5384.1860
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The Fas death receptor can activate the Jun NH2-terminal kinase (JNK) pathway through the receptor-associated protein Daxx. Daxx was found to activate the JNK kinase kinase ASK1, and overexpression of a kinase-deficient ASK1 mutant inhibited Fas- and Daxx-induced apoptosis and JNK activation. Fas activation induced Daxx to interact with ASK1, which consequently relieved an inhibitory intramolecular interaction between the amino- and carboxyl-termini of ASK1, activating its kinase activity. The Daxx-ASK1 connection completes a signaling pathway from a cell surface death receptor to kinase cascades that modulate nuclear transcription factors.
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收藏
页码:1860 / 1863
页数:4
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