patterns of gene expression in normal and neoplastic rat mammary tissues were compared by cell-free translation of their total polyadenylated rnas and by dot blot hybridization of the rna to cloned complementary dna probes for six of the major milk proteins , including : mr 42,000 and 25,000 caseins , x-casein , whey phosphoproteins , kappa-proteins , and alpha-lactalbumin .
C0031689
phosphoproteins
C0033684
proteins