these results support our view that beta-adrenoceptors contain two different affinity binding sites and that the interactions of beta-adrenergic partial agonists with the low affinity binding site induce the beta-adrenomimetic action , whereas the competitive antagonism by the beta-partial agonists and beta-adrenoceptor blockers is due to their ability to compete with beta-stimulant for the high affinity binding site .
C0001643
beta-adrenoceptors
C0034783
adrenoceptor