in contrast , processed milk proteins , extracted from oocytes injected with mammary gland rna , are relatively stable when introduced into the cytosolic compartment ( t 1/2 alpha-lactalbumin 20 +/- 8 h , casein a 6 h , casein b 4 h , casein c 8.3 h ) .
C0026138
milk proteins
C0007332
casein