High affinity of carozolol for beta-adrenoceptors coupled to the adenylyl cyclase in ventricular myocardium of kitten and Xenopus laevis
- PMID: 210404
- DOI: 10.1007/BF00498057
High affinity of carozolol for beta-adrenoceptors coupled to the adenylyl cyclase in ventricular myocardium of kitten and Xenopus laevis
Abstract
Catecholamine-induced stimulation of adenylyl cyclase in ventricular membranes of kitten and Xenopus laevis was antagonized competitively by carazolol. Apparent equilibrium constants ranging between 100-170 pM were estimated for the beta-adrenoceptor-carazolol complex.