tokens: The presence of anti-human glucocorticoid receptor antibodies was verified by : ( a ) adsorption of [ 3H ] TA-receptor-antibody complexes to Protein A ; ( b ) a shift to higher apparent molecular weight in the elution position from Sephacryl S300 of [ 3H ] TA-receptor complexes incubated with immune serum ; and ( c ) the ability of immune serum to displace [ 3H ] TA-receptor complexes on sucrose gradients .