...
首页> 外文期刊>cell and tissue research >Polarity of myofilaments in molluscan smooth muscle
【24h】

Polarity of myofilaments in molluscan smooth muscle

机译:Polarity of myofilaments in molluscan smooth muscle

获取原文
           

摘要

Myofilaments were isolated by gently homogenizing smooth muscle cells isolated from the pedal retractor muscle (PRM) ofMytilus edulis, and observed by electron microscopy. The thick filaments isolated in the presence of ATP (10–20 mM) had projections of myosin heads except near their centre (central bare zone). After extraction of myosin, the paramyosin core of the thick filaments showed a Bear-Selby net or a striated pattern with a main periodicity of 14.5 nm. Both the Bear-Selby net and the striated patterns had a polarity that reversed at the centre of the filament where the patterns were obscured. The thin filaments were attached to dense bodies. Decoration of the thin filaments with heavy meromyosin showed that they have opposite polarity on opposing sides of the dense body. The results indicate that the thick filaments are bipolar and also that the dense bodies are functionally analogous to the Z-disk of the striated muscl

著录项

  • 来源
    《cell and tissue research》 |1983年第3期|533-545|共页
  • 作者

    N.Ishii; Dr.K.Takahashi;

  • 作者单位

    Zoological Institute, Faculty of Science, University of Tokyo;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类
  • 关键词

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号