Cloning and functional expression of human cDNA for the ETB endothelin receptor

Aiji Sakamoto, Masashi Yanagisawa, Takeshi Sakurai, Yoh Takuwa, Hiromi Yanagisawa, Tomoh Masaki

Research output: Contribution to journalArticle

242 Scopus citations

Abstract

We report the cloning of human cDNA encoding an ETB (non-isopeptide-selective) subtype of the endothelin receptor. The predicted amino acid sequence of the human ETB endothelin receptor was 87.8% and 62.9% identical with the previously cloned rat ETB and ETA receptors, respectively. COS cells transiently transfected with the cloned cDNA expressed specific, high-affinity binding sites for endothelin isopeptides and responded to the peptides with a transient increase of [Ca2+]i; endothelin-1 and endothelin-3 exhibited approximately equal potencies both in displacing 125I-labeled endothelin-1 binding and in eliciting [Ca2+]i transients. The ETB receptor mRNAs were expressed in various human tissues and also in the intact porcine aortic intimal cells ex vivo.

Original languageEnglish (US)
Pages (from-to)656-663
Number of pages8
JournalBiochemical and Biophysical Research Communications
Volume178
Issue number2
DOIs
StatePublished - Jul 31 1991

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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