Cloning and characterization of a human angiotensin II type 1 receptor.
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Bergsma DJ, Ellis C, Kumar C, Nuthulaganti P, Kersten H, Elshourbagy N, Griffin E, Stadel JM, Aiyar N
Cloning and characterization of a human angiotensin II type 1 receptor.
Biochem Biophys Res Commun. 1992 Mar 31;183(3):989-95.
- PubMed ID
- 1567413 [ View in PubMed]
- Abstract
A human liver cDNA library was screened using a rat type 1 angiotensin II receptor cDNA coding sequence as a probe. cDNA clones were isolated which encoded a protein of 359 amino acids that shared 94.4% and 95.3% identify to rat and bovine type 1 angiotensin II receptors, respectively. Ligand binding studies of the cloned receptor expressed in COS cells suggested that it is pharmacologically a type 1 angiotensin II receptor subtype. Electrophysiological studies of the receptor expressed in Xenopus laevis oocytes revealed that it could functionally couple to a second messenger system leading to the mobilization of intracellular stores of calcium. Southern and Northern blot analyses indicated that the cloned receptor is represented as a single copy in the human genome and is expressed in many tissues of different histogenic origin with the exception of brain, where mRNA transcripts were barely detectable.