most of the non-bovine milk proteins are homologous with the recognized families of those of bos taurus , alpha s1-caseins , alpha s2-caseins , beta-caseins , kappa-caseins , beta-lactoglobulins , and alpha-lactalbumins , each family representing a separate genetic locus specific to the mammary gland .
C0002287
alpha-lactalbumins
C0929301
mammary gland