Different interactions of human and bovine serum albumin with Cibacron Blue and Blue Dextran.

  • 1 March 1982
    • journal article
    • Vol. 31  (2) , 100-6
Abstract
The interaction of human and bovine serum albumin with Cibacron Blue and Blue Dextran in aqueous solution was studied by means of difference spectroscopy. Both human and bovine albumin interact strongly with underivatized Cibacron Blue in three independent binding sites (K = 105). On the contrary, Blue Dextran interacts strongly only with human albumin, but does not bind appreciably to bovine albumin. These results suggest that the binding sites are exposed and easily accessible in human albumin, while in bovine albumin they are sterically hindered and therefore not accessible to the bulky Blue Dextran.

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