Calmodulin-activated protein kinase activity in rat pancreatic islet cell membranes.
Calmodulin-activated protein kinase activity in rat pancreatic islet cell membranes.
复制标题
大鼠胰岛细胞膜中钙调蛋白激活的蛋白激酶活性。
DOI:
10.1016/0003-9861(82)90449-0
复制
发表时间:
1982
影响因子:
3.9
通讯作者:
McDonald,JM
中科院分区:
文献类型:
--
作者:
Landt,M;McDaniel,ML;Bry,CG;Kotagal,N;Colca,JR;Lacy,PE;McDonald,JM
A calmodulin-activated protein kinase activity was identified in pancreatic islet cell membranes, which phosphorylated an endogenous protein of molecular weight 57,000 as determined by sodium dodecyl sulfate electrophoresis. Calmodulin activation of the protein kinase activity was dose dependent and saturable, with half-maximal activation occurring at 360 nmcalmodulin. Trifluoperazine inhibited calmodulin activation of the protein kinase but had negligible effects on basal activity. The 50% inhibition occurred at 40 μmtrifluoperazine. Subcellular fractionation of islet cells demonstrated that the calmodulin-activated activity was enriched in a light-particle fraction. This fraction was enriched in endoplasmic reticulum, but there was no correlation between protein kinase activity and endoplasmic reticulum marker enzyme activity among various subcellular fractions. The function of the kinase activity and the identity of the substrate are unknown, but the kinase activity may be involved in pancreatic stimulus-secretion coupling.
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DOI:
--
发表时间:
1980
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Schubart,UK;Fleischer,N;Erlichman,J
通讯作者:
Erlichman,J
影响因子:
3.5
作者:
M. Sugden;M. Christie;S. Ashcroft
通讯作者:
S. Ashcroft
DOI:
10.1016/s0021-9258(17)33231-3
发表时间:
1976
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
D. M. Watterson;W. Harrelson;P. Keller;F. Sharief;T. Vanaman
通讯作者:
T. Vanaman
影响因子:
56.9
作者:
I. Valverde;A. Vandermeers;R. Anjaneyulu;W. Malaisse
通讯作者:
W. Malaisse
影响因子:
4.7
作者:
LEVIN, RM;WEISS, B
通讯作者:
WEISS, B