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Japanese

Myosin Takamitsu SEKINE 1 1Department of Biochemistry, School of Medicine, Juntendo University pp.786-790
Published Date 1975/8/10
DOI https://doi.org/10.11477/mf.1431903772
  • Abstract
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 The rod-like myosin molecule of 500,000 daltons composed of two main subunits (heavy chain) has two heads, each of which contains two light chains and has distinct ATPase activity, possessing E ・ ADP ・ Pi and E ・ ATP as enzyme-substrate complex, respectively.

 Actin greatly accelerates the decomposition of the reactive E ・ ADP ・ Pi complex (actomyosin type ATPase) and induces a marked conformational change around the region containing specific sulfhydryl groups, S1) and S2). These changes are assumed to be related to the development of a driving force for sliding of myosin-filament along actin-filament.


Copyright © 1975, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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