Paramyosin and contraction of catch muscles.

Science (New York, N.Y.) ·Vol. 130 ·No. 3368 ·1959-07-17 ·Pages 160-1

JOHNSON WH, KAHN JS, SZENTGYORGYI AG

Abstract

The isotonic shortening of glycerol-extracted preparations of molluscan catch muscles is inhibited at pH's and ionic strengths at which extracted paramyosin crystallizes. The isometric tension development is hardly altered under the same conditions. Consequently, the "catch mechanism" is explained on the basis of the crystallization of paramyosin.

Keywords

MUSCLE PROTEINS

MeSH Terms

Animals Crystallization Mollusca Muscle Proteins Muscles Osmolar Concentration Tropomyosin

Chemicals

Muscle Proteins Tropomyosin

Authors & Affiliations

3 authors, click to expand affiliations / ORCID

JOHNSON W H

KAHN J S

SZENTGYORGYI A G

Article Info

Journal

Science (New York, N.Y.)

Abbr.

Science

ISSN

0036-8075

DOI

10.1126/science.130.3368.160

Published

1959-07-17

Pages

160-1

Language

English

Region

United States

NLM ID

0404511

Subset

External Links

PubMed source DOI: 10.1126/science.130.3368.160 View journal details

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