Calponin phosphorylation does not accompany contraction of various smooth muscles.
Calponin phosphorylation does not accompany contraction of various smooth muscles.
复制标题
钙调蛋白磷酸化不伴随各种平滑肌的收缩。
DOI：
10.1016/0167-4889(93)90146-g
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Bárány,K
中科院分区：
文献类型：
--
作者：
Bárány,M;Bárány,K
用~（32）P标记猪动脉、子宫、气管、胃和膀胱平滑肌，定量测定钙调蛋白磷酸化。在肌球蛋白轻链磷酸化增加几倍的条件下，静息肌肉中0.003-0.008 mol [32 P]磷酸盐/mol钙调蛋白的可忽略量在各种试剂诱导的收缩后没有增加。结果表明，平滑肌收缩不涉及钙调蛋白磷酸化。
Calponin phosphorylation was quantitated in32P-labeled porcine arterial, uterine, tracheal, stomach and bladder smooth muscles. The negligible amount of 0.003–0.008 mol [32P]phosphate/mol calponin in resting muscles did not increase upon contraction induced by various agents, under conditions when myosin light-chain phosphorylation increased several-fold. The results indicate no involvement of calponin phosphorylation in smooth-muscle contraction.