title: Radioimmunoassay for albumin-binding sites associated with HBsAg: correlation of results with the presence of e-antigen in serum.
abstract: A radioimmunoassay for albumin-binding sites associated with hepatitis B surface antigen (HBsAg) is described. Polystyrene beads coated with glutaraldehyde-polymerized human serum albumin were incubated with diluted specimens of HBsAg-positive sera which contained either e-antigen (HBeAg) or anti-HBe or were negative for both HBeAg and anti-HBe as determined by rheophoresis. The quantity of HBsAg attached to the beads, determined by measuring the amount of 125I-labeled anti-HBs adsorbed during a subsequent incubation step, was related to the presence of HBeAg in the specimens.
mesh_terms: D000327:Adsorption; D001665:Binding Sites; D006509:Hepatitis B / Q000276:immunology*; D006511:Hepatitis B Antigens / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D011863:Radioimmunoassay; D012709:Serum Albumin
chemical_list: D006511:Hepatitis B Antigens; D006514:Hepatitis B Surface Antigens; D012709:Serum Albumin