Title : Subtype-selective desensitization of alpha 2-adrenergic receptors. Different mechanisms control short and long term agonist-promoted desensitization of alpha 2C10, alpha 2C4, and alpha 2C2.

Pub. Date : 1992 Dec 15

PMID : 1334095






1 Functional Relationships(s)
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1 After 30 min of agonist exposure, alpha 2C10 and alpha 2C2 displayed desensitization characterized by rightward shifts in the curves for epinephrine-mediated inhibition of adenylyl cyclase (EC50 = alpha 2C10, 0.24 +/- 0.02 microM increasing to 1.1 +/- 0.1 microM; alpha 2C2, 1.3 +/- 0.3 increasing to 2.6 +/- 0.3 microM). Epinephrine adrenoceptor alpha 2A Homo sapiens