TPA-INDUCED ACTIVATION OF MAP KINASE

被引:69
|
作者
ADAMS, PD [1 ]
PARKER, PJ [1 ]
机构
[1] IMPERIAL CANC RES FUND,PROT PHOSPHORYLAT LAB,44 LINCOLNS INN FIELDS,LONDON WC2A 3PX,ENGLAND
关键词
MAP KINASE; PROTEIN KINASE-C; PHORBOL ESTER;
D O I
10.1016/0014-5793(91)81230-6
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
Threonine and tyrosine residue phosphorylation of a 42 kDa protein identified as mitogen-activated protein kinase (MAP kinase) was stimulated in extracts from TPA-pretreated cells. It is further shown that TPA pretreatment leads to the enhancement of an activity that will induce reactivation of dephosphorylated/inactivated MAP kinase. This TPA-induced activity induces the threonine and tyrosine phosphorylation of p42 in extracts from unstimulated cells.
引用
收藏
页码:77 / 82
页数:6
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