computer-assisted analysis of concentration-response curves for the inhibition by xamoterol of the binding of [ 125i ] iodocyanopindolol in the membranes from guinea pig ventricles showed the existence of the 5'-guanylylimidodiphosphate sensitive , highly affinity site of beta adrenoceptors for xamoterol , suggesting that xamoterol may induce the formation of a ternary complex with the beta adrenoceptor and a stimulatory guanine nucleotide regulatory protein .
C0034783
adrenoceptors
C0001643
beta adrenoceptor