scatchard analysis of binding of the opiate agonist 3h- ( d-ala2 , d-leu5 ) enkephalin ( dadle ) and the antagonist [ 3h ] diprenorphine to dbcamp-treated ncb-20 cell membranes indicated an 80 % reduction in opiate receptor density relative to untreated cells ( bmax = 47 +/- 11 fmol/mg of protein versus 220 +/- 48 fmol/mg of protein ) , with no change in ligand affinities .
C0007603
cell
C0007634
cells