Allergenic properties of the genetic variants A and B of bovine beta-lactoglobulin.

The principal allergen in cow's milk is beta-lactoglobulin (beta-Lg) which is normally found as equal mixtures of the A and B genetic variants in pooled milk. The A and B variants were purified in large amounts and fed to guinea pigs. After 15 days, circulating immunoglobulins IgG1 and IgG2 to the milk proteins were detected, with a somewhat higher response… CONTINUE READING