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Proc Natl Acad Sci U S A. 1988 Sep;85(18):6964-7.

Primary structure, synthesis, and biological activity of rat endothelin, an endothelium-derived vasoconstrictor peptide.

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  • 1Institute of Basic Medical Sciences, University of Tsukuba, Ibaraki, Japan.

Abstract

Endothelin is a potent vasoconstrictor/pressor peptide, which we recently characterized from the conditioned culture medium of porcine aortic endothelial cells. We report here the cloning and partial sequencing of the rat endothelin gene. The nucleotide sequence predicted a 21-residue peptide similar to, but distinct from, porcine endothelin; 15 residues of rat endothelin were identical and 3 residues were substitutions by chemically similar amino acid residues to those in the porcine peptide. Synthetic rat endothelin was then prepared according to its deduced amino acid sequence. This synthetic peptide had (i) potent vasoconstrictor activity in the rat aortic strip and in perfused rat heart and (ii) a characteristically long-lasting in vivo pressor activity by intraaortic bolus injection in the conscious rat.

PMID:
3045827
PMCID:
PMC282099
[PubMed - indexed for MEDLINE]
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