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PMID: 7225522 Published · ppublish English Journal Article Research Support, U.S. Gov't, P.H.S.

Cross-bridge behavior in rigor muscle.

Biophysics of structure and mechanism ·Vol. 7 ·No. 1 ·1980-00-00 ·Pages 51-63

Pate EF, Brokaw CJ

Abstract

Properties of the rigor state in muscle can be explained by a simple cross-bridge model, of the type which has been suggested for active muscle, in which detachment of cross-bridges by ATP is excluded. Two attached cross-bridge states, with distinct force vs. distortion relationships, are required, in addition to a detached state, but the attached cross-bridge states in rigor muscle appear to differ significantly from the attached cross-bridge states in active muscle. The stability of the rigor force maintained in muscle under isometric conditions does not require exceptional stability of the attached cross-bridges, if the positions in which attachment of cross-bridges is allowed are limited so that the attachment of cross-bridges in positions which have minimum free energy is excluded. This explanation of the stability of the rigor state may also be applicable to the maintenance of stable rigor waves on flagella.

MeSH Terms
Adenosine Triphosphate/metabolism Animals Hemiptera Kinetics Mathematics Models, Biological Muscle Rigidity/metabolism Muscles/metabolism
Chemicals
Adenosine Triphosphate
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Pate E F
Brokaw C J
References (22)
22 references, click to expand
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Article Info
Journal
Biophysics of structure and mechanism
Abbr.
Biophys Struct Mech
ISSN
0340-1057
DOI
10.1007/BF00538158
Published
1980-00-00
Pages
51-63
Language
English
Region
Germany
NLM ID
7502020
Subset
IM
Grants
NIGMS NIH HHS · GM 21831 · United States
External Links
PubMed source DOI: 10.1007/BF00538158
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