甘油化肌纤维和肌动球蛋白悬浮液的酶学及收缩特性的比较研究。
Comparative studies on the enzymological and contractile properties of glycerinated muscle fibers and actomyosin suspensions.
作者信息
Kaldor G, DiBattista W, Nuler L
出版信息
Physiol Chem Phys. 1982;14(2):125-8.
PMID:6223326
Abstract
Kinetic parameters of enzymatic reactions and contractile responses induced by adenosine triphosphate were studied using actomyosin suspensions or glycerinated muscle fibers. The results showed excellent correlations between the enzymatic and contractile events in both muscle models. Based on comparison of the kinetic constants of the two models, it is proposed that superprecipitation and supercontraction are similar expressions of an ATP-induced contractile response in muscle models of various levels of organization.
摘要
使用肌动球蛋白悬浮液或甘油处理的肌纤维，研究了三磷酸腺苷诱导的酶促反应和收缩反应的动力学参数。结果表明，在两种肌肉模型中，酶促事件和收缩事件之间存在极好的相关性。基于对两种模型动力学常数的比较，有人提出，在不同组织水平的肌肉模型中，超沉淀和超收缩是三磷酸腺苷诱导的收缩反应的相似表现形式。
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