title: Cloning and expression of the alpha 2C-adrenergic receptor from the OK cell line.
abstract: The alpha 2-adrenergic receptors have been divided into four pharmacological subtypes, alpha 2A, alpha 2B, alpha 2C, and alpha 2D. The OK cell line, a cell line derived from an opossum kidney, expresses the alpha 2C-adrenergic receptor and is the prototypical cell line for the alpha 2C receptor subtype. The cloned human alpha 2C-C4 and rat RG10 receptors have been shown to express alpha 2C pharmacology. Here we report the cloning and expression of the OK alpha 2C-adrenergic receptor, OKc2. The receptor has 64% deduced amino acid identity and 21% similarity to the alpha 2-C4 receptor, giving an overall similarity of 85%. The clone, expressed in Chinese hamster ovary cells, has a pharmacology that correlates very well (r = 0.97) with that of the native OK cell alpha 2C-adrenergic receptor, and it is negatively coupled to adenylyl cyclase.
authors.affiliation: Department of Pharmacology, University of Nebraska Medical Center, Omaha 68198-6260.
authors.forename: H S
authors.initials: HS
authors.lastname: Blaxall
authors.forename: D R
authors.initials: DR
authors.lastname: Cerutis
authors.forename: N A
authors.initials: NA
authors.lastname: Hass
authors.forename: L J
authors.initials: LJ
authors.lastname: Iversen
authors.forename: D B
authors.initials: DB
authors.lastname: Bylund
mesh_terms: D000262:Adenylyl Cyclases / Q000378:metabolism; D000316:Adrenergic alpha-Agonists / Q000494:pharmacology*; D000317:Adrenergic alpha-Antagonists / Q000494:pharmacology*; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015139:Blotting, Southern; D016466:CHO Cells; D002460:Cell Line; D003001:Cloning, Molecular; D006224:Cricetinae; D000242:Cyclic AMP / Q000378:metabolism; D006801:Humans; D007668:Kidney / Q000166:cytology; D008969:Molecular Sequence Data; D009893:Opossums; D012313:RNA / Q000032:analysis; D051381:Rats; D011942:Receptors, Adrenergic, alpha / Q000096:biosynthesis / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid
chemical_list: D000316:Adrenergic alpha-Agonists; D000317:Adrenergic alpha-Antagonists; D011942:Receptors, Adrenergic, alpha; D012313:RNA; D000242:Cyclic AMP; D000262:Adenylyl Cyclases