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Biochem Biophys Res Commun. 1983 Oct 31;116(2):696-703.

Rat atrial natriuretic factor. Purification and vasorelaxant activity.

Abstract

The atrial natriuretic activity of rat heart has been found to exist in multiple forms. One of these factors has been purified to apparent homogeneity by a combination of gel filtration and high pressure liquid chromatography in two different systems and its amino acid composition determined. The purified active peptide is shown to have a molecular weight of approximately 3800. In addition, the vasorelaxant activity of rat atrium has been purified and found to co-chromatograph with the natriuretic activity in all chromatographic systems employed. Thus, the vasorelaxant activity resides in the natriuretic factor. The existence of this new multifunctional peptide implies a higher level of complexity for cardiovascular control of blood volume and pressure.

PMID:
6651832
[PubMed - indexed for MEDLINE]
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