Studies on the mechanism of binding of serum albumins to immobilized cibacron blue F3G A.
The interaction of Cibacron Blue F3G A-Sepharose 4B with several serum albumins was studied. Although all albumins used were fond to bind to this adsorbent, human serum albumin was bound to a far greater extent than were the others. From the results of competition experiments and n.m.r. studies of Cibacron Blue and/or bilirubin binding to human serum albumin it is proposed that the mechanism of the interaction between human serum albumin and cibacron Blue is consistent wit Cibacron Blue binding to bilirubin-binding sites. In contrast with these findings with human serum albumin, there is little or no interaction of Cibacron Blue and the bilirubin-binding sites of albumins from rabbit, horse, bovine or sheep sera, although some interaction occurs between Cibacron Blue and the fatty acid-binding sites of these proteins. Structural analogues of Cibacron Blue have been used to investigate the binding of albumins to these ligands.
D000818:Animals; D000873:Anthracenes; D001663:Bilirubin; D001665:Binding Sites; D001667:Binding, Competitive; D004396:Coloring Agents; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D010168:Palmitates; D011134:Polysaccharides; D011485:Protein Binding; D012685:Sepharose / Q000031:analogs & derivatives; D012709:Serum Albumin
D000873:Anthracenes; D004396:Coloring Agents; D010168:Palmitates; D011134:Polysaccharides; D012709:Serum Albumin; C017842:cibacron blue-sepharose; D012685:Sepharose; D001663:Bilirubin