| Literature DB >> 1738154 |
Abstract
The structure of the actin-myosin head complex during the ATPase cycle has been studied by electron microscopy of negatively stained acto-heavy-meromyosin. In the absence of ATP, heavy meromyosin molecules generally showed a regular, angled appearance, with both heads attached to the actin filament. In the presence of ATP, attached molecules showed a less ordered structure, often with only one head attached. We conclude that configurations other than the rigor structure occur during the actomyosin cross-bridge cycle.Entities:
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Year: 1992 PMID： 1738154 DOI： 10.1016/0022-2836(92)90659-8
Source DB: PubMed Journal: J Mol Biol ISSN： 0022-2836 Impact factor: 5.469