Bridging the myoplasmic gap II: more recent advances in skeletal muscle excitation-contraction coupling

被引:26
作者
Bannister, Roger A. [1 ]
机构
[1] Univ Colorado, Dept Med, Div Cardiol, Denver Anschutz Med Campus,12700 East 19th Ave,Ro, Aurora, CO 80045 USA
关键词
1,4-dihydropyridine receptor; DHPR; Ca(V)1.1; alpha S-1; L-type; Excitation-contraction coupling; Skeletal muscle; RECEPTOR BETA-1A SUBUNIT; CALCIUM-RELEASE CHANNEL; C-TERMINAL TAIL; DIHYDROPYRIDINE-RECEPTOR; CA2+ CHANNEL; RYANODINE RECEPTORS; BETA(1A) SUBUNIT; CRYSTAL-STRUCTURES; CHARGE MOVEMENT; CARBOXYL-TERMINUS;
D O I
10.1242/jeb.124123
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
In skeletal muscle, excitation-contraction (EC) coupling relies on the transmission of an intermolecular signal from the voltage-sensing regions of the L-type Ca2+ channel (Ca(V)1.1) in the plasma membrane to the channel pore of the type 1 ryanodine receptor (RyR1) nearly 10 nm away in the membrane of the sarcoplasmic reticulum (SR). Even though the roles of Ca(V)1.1 and RyR1 as voltage sensor and SR Ca2+ release channel, respectively, have been established for nearly 25 years, the mechanism underlying communication between these two channels remains undefined. In the course of this article, I will review current viewpoints on this topic with particular emphasis on recent studies.
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页码:175 / 182
页数:8
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