Syrový I, Gutmann E
Physiol Bohemoslov. 1975;24(4):325-34.
The ATPase activity of myosin and contraction time in extensor digitorum longus muscle, soleus muscle and cardiac muscle was compared in mammals differing in size. It was shown that the myosin ATPase activity of homologous muscles decreases and contraction time increases with increasing size of animals. The rate of tryptic digestion of myosin, the electrophoretic pattern of light chains of myosin and the effect of p-chloromercuribenzoate on ATPase activity of myosin were also studied. All these three myosin properties are very characteristic when the myosin from a fast muscle is compared with the myosin from a slow muscle of the same animal, but no relationship between these three myosin properties and ATPase activity of myosin was found, when homologous muscles of various mammals were compared.
在不同体型的哺乳动物中，比较了趾长伸肌、比目鱼肌和心肌中肌球蛋白的ATP酶活性以及收缩时间。结果表明，同源肌肉的肌球蛋白ATP酶活性随动物体型增大而降低，收缩时间随动物体型增大而增加。还研究了肌球蛋白的胰蛋白酶消化速率、肌球蛋白轻链的电泳图谱以及对氯汞苯甲酸对肌球蛋白ATP酶活性的影响。当比较同一动物的快肌肌球蛋白和慢肌肌球蛋白时，这三种肌球蛋白特性非常具有特征性，但当比较不同哺乳动物的同源肌肉时，未发现这三种肌球蛋白特性与肌球蛋白ATP酶活性之间存在关联。
