Phosphorylation in vitro of vimentin by protein kinases A and C is restricted to the head domain. Identification of the phosphoserine sites and their influence on filament formation.
Phosphorylation in vitro of vimentin by protein kinases A and C is restricted to the head domain. Identification of the phosphoserine sites and their influence on filament formation.
复制标题
蛋白激酶 A 和 C 对波形蛋白的体外磷酸化仅限于头部结构域。
DOI:
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发表时间:
1989
期刊:
影响因子:
--
通讯作者:
K. Weber
中科院分区:
文献类型:
--
作者:
N. Geisler;M. Hatzfeld;K. Weber
The in vitro phosphorylation of vimentin, the intermediate filament protein of mesenchymal cells, by kinases A and C is serine-specific and involves only the N-terminal head domain. In oligomeric protofilament units each kinase recognizes five sites, which have been identified by sequence analysis. Kinase C introduces 1.5 mol phosphate/mol vimentin, while kinase A treatment results in 4 mol phosphate/mol. Kinase-A-treated oligomers do not polymerize in standard assays whereas kinase C treatment has no inhibitory effect. Filaments exposed to kinase A remain stable and incorporate only 1.7 mol phosphate/mol vimentin. These phosphates are essentially restricted to two of the five kinase A sites found in protofilament units. Thus the head domain, previously related to in vitro assembly competence and filament stability, changes in accessibility between the oligomeric and polymeric state. We discuss the possibility that in vivo phosphorylation of vimentin filaments by kinase A may not necessarily be accompanied by an extensive depolymerization. It could instead involve a dynamic change of the filament surfaces, which could alter the interaction of the filaments with other cellular structures.
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影响因子:
6.6
作者:
Evans,RM
通讯作者:
Evans,RM
DOI:
--
发表时间:
1987
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Zehner,ZE;Li,Y;Roe,BA;Paterson,BM;Sax,CM
通讯作者:
Sax,CM
DOI:
10.1073/pnas.80.3.760
发表时间:
1983-02
影响因子:
11.1
作者:
W. A. Spruill;J. Zysk;L. Tres;A. Kierszenbaum
通讯作者:
W. A. Spruill;J. Zysk;L. Tres;A. Kierszenbaum
DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Coca-Prados,M
通讯作者:
Coca-Prados,M
DOI:
10.1016/0006-291x(88)90728-0
发表时间:
1988
影响因子:
3.1
作者:
Huang,CK;Devanney,JF;Kennedy,SP
通讯作者:
Kennedy,SP