肌球蛋白在牛心肌心房区域的表达。

Expression of myosin in atrial areas of the bovine myocardium.

Syrový I

Institute of Physiology, Czechoslovak Academy of Sciences, Prague.

Comp Biochem Physiol A Comp Physiol. 1989;92(3):441-3. doi: 10.1016/0300-9629(89)90589-6.

Abstract

A comparison of myosins from defined areas of the bovine atrial myocardium was performed by measuring Ca2+-ATPase activity and electrophoretic separation of myosin light chains. 2. Some areas of atrial myocardium contained myosin with slightly higher ATPase activity than others. 3. There were also clear differences in the amount of one ventricular light chain of myosin in defined regions of atrial myocardium. 4. No close relationship existed between the expression of ventricular and atrial myosin light chains and myosin ATPase activity.

摘要

通过测量钙离子 - ATP 酶活性和肌球蛋白轻链的电泳分离，对牛心房心肌特定区域的肌球蛋白进行了比较。2. 心房心肌的某些区域所含肌球蛋白的 ATP 酶活性略高于其他区域。3. 在心房心肌的特定区域，肌球蛋白的一种心室轻链的量也存在明显差异。4. 心室和心房肌球蛋白轻链的表达与肌球蛋白 ATP 酶活性之间不存在密切关系。