heterogeneity of binding of the two prototypic ptbr ligands in mouse brain membranes was indicated by additivity studies , equilibrium competition experiments , and saturation isotherms , which together support the hypothesis that ro 5-4864 discriminates between two [ 3h ] pk 11195 binding sites having high ( nanomolar ) and low ( micromolar ) affinity , respectively .
C1517880
binding
C1823521
ptbr