| abstract |
This invention provides an altered kosher kappa casein polypeptide having at least one altered amino acid in a defined amino acid stretch. The defined amino acid stretch contributes to an allergic reaction induced by a kosher wild-type casein polypeptide in a human subject. Moreover, the defined amino acid stretch is expressed solely in kosher animals. The invention further provides an expression system for expressing the altered kosher casein polypeptide. |