Cloning and expression of a bovine adenosine A1receptor cDNA

Autor: Kevin R. Lynch, Joel Linden, Anna S. Robeva, Amy L. Tucker, D. D. D'angelo
Rok vydání: 1992
Předmět:
Zdroj: FEBS Letters. 297:107-111
ISSN: 0014-5793
DOI: 10.1016/0014-5793(92)80338-h
Popis: A bovine brain adenosine A1 receptor cDNA encoding a 326 amino acid protein has been identified. This cDNA, which encodes a protein greater than 90% identical to analogous rat and dog receptors, was transiently expressed in COS-1 cells. Recombinant receptors exhibited the features of bovine A1 receptors that distinguish it from rat and canine receptors, including subnanomolar Ki for 1,3-dipropyl-8-cyclopentylxanthine, R-phenylisopropyl- adenosine (R-PIA) and xanthine amino conjugate, and the distinct potency order: R-PIA greater than S-PIA much greater than 5'-N-ethylcarboxamidoadenosine greater than 2'-chloroadenosine. The results indicate that the pharmacological differences between A1 adenosine receptors among species result from only minor differences in receptor structures.
Databáze: OpenAIRE