Testosterone-estradiol-binding globulin binds to human prostatic cell membranes.

Specific binding sites for human testosterone-estradiol-binding globulin have been found on human prostatic cell membranes. Scatchard analysis reveals both a high and a low affinity binding site for [125I]testosterone-estradiol-binding globulin. The high affinity site is specific for testosterone-estradiol-binding globulin, whereas the low affinity site also binds human corticosteroid-binding globulin and human transferrin.