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. 1980 Dec 15;192(3):967–970. doi: 10.1042/bj1920967

Contraction in intact pig aortic strips is not always associated with phosphorylation of myosin light chains.

K J Murray, P J England
PMCID: PMC1162427  PMID: 7236251

Abstract

Intact pig aortic strips were incubated in medium containing [32P]P1 and various Ca2+ concentrations. The 32P content of the myosin P-light chain was determined by radioautography after electrophoresis in the presence of sodium dodecyl sulphate. Although treatment of the strips with noradrenaline always caused a rise in tension, this was not necessarily accompanied by increased phosphorylation of the P-light chain. These results indicate that, in aortic smooth muscle, phosphorylation of the P-light chain is not obligatory for contraction.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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