CORRELATION BETWEEN CARDIAC-MUSCLE MYOSIN ATPASE ACTIVITY AND VELOCITY OF MUSCLE SHORTENING

被引:26
作者
CAREY, RA
BOVE, AA
COULSON, RL
SPANN, JF
机构
[1] Cardiology Section, Temple University, Philadelphia
来源
BIOCHEMICAL MEDICINE | 1979年 / 21卷 / 03期
基金
美国国家卫生研究院;
关键词
D O I
10.1016/0006-2944(79)90078-4
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
Although an interrelationship between the maximum velocity of muscle shortening and the maximum rate of ATP hydrolysis of myosin ATPase has been postulated, the only established correlation has been in skeletal and smooth muscle from a variety of animal species. The present study employed conditions known to alter contractile function of the heart and determined that a statistically significant (n = 24, P < 0.01) relationship exists between the maximum rate of ATP hydrolysis and the maximum velocity of papillary muscle shortening in the myocardium of a single species. © 1979.
引用
收藏
页码:235 / 245
页数:11
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