dissociation of bound 125i ifn beta ser from daudi cells was slow ( t1/2 = 1.2 h ) of bound radiolabeled ligand was observed in the presence of unlabeled ifn beta ser , naturally produced ifn beta , and ifn alpha 6 , but was not observed with unlabeled ifn gamma or nonspecific proteins .
C0244713
ifn beta ser
C0015980
ifn beta