the beta-adrenergic receptor photoaffinity ligand p-azido-m- [ 125i ] iodobenzylcarazolol has been used to covalently label the beta 1 and beta 2 adrenergic receptor binding subunits present in left ventricular myocardial membranes derived from mammalian ( including human ) and nonmammalian species .
C0001643
beta-adrenergic receptor
C0086418
human