thus , binding assays for 125i-ihyp in cerebral cortical membranes performed in the presence of 30 microm ( - ) -isoprenaline ( to eliminate the binding of the ligand to beta-adrenoceptors ) show that isomers of propranolol still maintain a degree of stereoselectivity at these sites .
C1517880
binding
C0001643
beta-adrenoceptors