兔中耳肌肉的同工肌球蛋白

The isomyosins of rabbit middle ear muscles.

作者信息

Moraru I, Beckers-Bleukx G, Maréchal G

出版信息

Arch Int Physiol Biochim. 1984 Dec;92(5):385-90. doi: 10.3109/13813458409080615.

Abstract

Isomyosins of the two middle ear muscles of rabbit have been separated by electrophoresis in non-dissociating conditions. Tensor tympani has four isomyosins called MM1 to MM4 by order of decreasing mobility. Stapedius has two isomyosins, similar to MM1 and MM4. MM1 and MM2 have the same mobility than FM2 and FM3, fast isomyosins observed in psoas. MM4 has the same mobility than IM, a slow isomyosin observed in extensor digitorum longus. MM3 is absent in soleus, psoas or extensor digitorum longus. Slow myosin (SM) of soleus and fast myosin (FM1) of psoas are not observed in middle ear muscles.

摘要

兔中耳两块肌肉的同工肌球蛋白已在非解离条件下通过电泳分离。鼓膜张肌有四种同工肌球蛋白，按照迁移率递减顺序称为MM1至MM4。镫骨肌有两种同工肌球蛋白，与MM1和MM4相似。MM1和MM2与FM2和FM3具有相同的迁移率，FM2和FM3是在腰大肌中观察到的快速同工肌球蛋白。MM4与IM具有相同的迁移率，IM是在趾长伸肌中观察到的慢速同工肌球蛋白。比目鱼肌、腰大肌或趾长伸肌中不存在MM3。比目鱼肌的慢速肌球蛋白（SM）和腰大肌的快速肌球蛋白（FM1）在中耳肌肉中未观察到。