Changes in Holstein cow milk and serum proteins during intramammary infection with three different strains of Staphylococcus aureus

Table 2 Identification of proteins differentially expressed in different S.aureus challenge groups 2 or 14 days post-infection

Spot I.D.	Protein	NCBI Accession no.	MS result^a	Th. Mass (kDa)/pI^b	Obs. Mass (kDa)/pI^b
39	Component PP3	2007376A	98; 13	15.3/5.98	16/6.5
235	Component PP3	2007376A	115; 13	15.3/5.98	15/7
251	β-casein precursor	P02666	72; 8	25.1/5.26	20/7
349	Component PP3	2007376A	208; 39	15.3/5.98	19/6
354	β-lactoglobulin	CAA32835	109; 11	20.3/4.85	15/8

^aIon score is = 10*Log(P) where P is the probability that the observed match is a random event (ion scores > 47 are significant at p < 0.05);% coverage.
^bTheoretical (Th.) and observed (Obs.) masses and isoelectric points (pI).

ISSN: 1746-6148