in a modified krebs buffer at 37 degrees c , the selective mu agonist [ 3h ] d-ala2 , mephe4 , gly-ol5 ] enkephalin [ ( 3h ] damgo ) and the nonselective mu/delta agonist human [ 125i ] beta-endorphin [ ( 125i ] beta-endh ) bound to rat striatal membranes with a kd of about 7 and 5 nm and a bmax of about 95 and 260 fmol/mg of protein , respectively , consistent with labeling of mu receptors by the former ligand and labeling of both mu and delta receptors by the latter .
C0014298
enkephalin
C0525773
damgo