CALPONIN PHOSPHORYLATION DOES NOT ACCOMPANY CONTRACTION OF VARIOUS SMOOTH MUSCLES

被引：44

作者：

BARANY, M ^{[1
]}

BARANY, K ^{[1
]}

机构：

[1] UNIV ILLINOIS,COLL MED,DEPT PHYSIOL & BIOPHYS,CHICAGO,IL 60612

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1993年 / 1179卷 / 02期

关键词：

CALPONIN PHOSPHORYLATION; CALPONIN ISOFORM; SMOOTH MUSCLE; MUSCLE CONTRACTION;

D O I：

10.1016/0167-4889(93)90146-G

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Calponin phosphorylation was quantitated in P-32-labeled porcine arterial, uterine, tracheal, stomach and bladder smooth muscles. The negligible amount of 0.003-0.008 mol [P-32]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.

引用

页码：229 / 233

页数：5

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