TABLE 3.

Composition of RP-HPLC fraction 12 of an endoproteinase Glu-C digest of CMP^a

Observed mass (m/z)	Calculated mass (Da)	Assignmentb
2,282	2,279	Ser(P)149 κ-casein-A(138–158)c
2,350	2,348	Ser(P)149 κ-casein-A(148–169)
2,394	2,392	Ser(P)149 κ-casein-B(148–169)

^aGrowth inhibition was 84% ± 9% (growth ± standard deviation [n = 3]) at a concentration of 0.14 mg/ml (determined by amino acid analysis). 

^bAssigned by MS and N-terminal amino acid sequence analysis. 

^cAmino acid sequence of Ser(P)¹⁴⁹ κ-casein-A(138–158): AVESTVATLEDΣPEVIESPPE, where Σ is Ser(P).