In-vivo phosphorylation of the cardiac L-type calcium channel beta-subunit in response to catecholamines
In-vivo phosphorylation of the cardiac L-type calcium channel beta-subunit in response to catecholamines
复制标题
心脏 L 型钙通道 β 亚基响应儿茶酚胺的体内磷酸化
DOI:
--
复制
发表时间:
1996
影响因子:
4.3
通讯作者:
E. Krause
中科院分区:
文献类型:
--
作者:
H. Haase;S. Bartel;P. Karczewski;I. Morano;E. Krause
In canine myocardium, the β-subunit of the L-type Ca2+ channel is phosphorylated by cAMP dependent protein kinase in vitro as well as in vivo (Haase et al. FEBS Lett 335: 217–222, 1993). We have assessed the identity of the β-subunit as well as its in vivo phosphorylation in representative experimental groups of catecholamine-challenged canine hearts. Adrenergic stimulation by high doses of both noradrenaline and isoprenaline induced rapid (within 20 sec) and nearly complete phosphorylation of the Ca2+ channel β-subunit. Phosphorylation in vivo was about 4-fold higher as compared to untreated controls. When related to catecholamine-depleted (reserpine-treated) hearts noradrenaline and isoprenaline increased the in vivo phosphorylation of the β-subunit even 8-fold. This phosphorylation correlated positively with tissue levels of cAMP, endogenous particulated cAMP-dependent protein kinase (PKA) and the rate of contractile force development dP/dtmax. The results imply the involvement of a PKA-mediated phosphorylation of the Ca2+ channel β-subunit in the adrenergic stimulation of intact canine myocardium.
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DOI:
10.1073/pnas.88.23.10778
发表时间:
1991-12-01
影响因子:
11.1
作者:
DEJONGH, KS;WARNER, C;CATTERALL, WA
通讯作者:
CATTERALL, WA
DOI:
--
发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lai,Y;Seagar,MJ;Takahashi,M;Catterall,WA
通讯作者:
Catterall,WA
DOI:
10.1016/s0021-9258(17)44447-4
发表时间:
1983-09
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
I. Buxton;L. Brunton
通讯作者:
I. Buxton;L. Brunton
DOI:
--
发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Mundiña-Weilenmann,C;Chang,CF;Gutierrez,LM;Hosey,MM
通讯作者:
Hosey,MM
DOI:
10.1073/pnas.90.21.10135
发表时间:
1993-11-01
影响因子:
11.1
作者:
SCULPTOREANU, A;ROTMAN, E;CATTERALL, WA
通讯作者:
CATTERALL, WA