Table 1.

Phosphorylated MP17 peptides.

Position [aa]	Score	Sequence	Digestion
69–76	42	R.TTSWATPK.E	Trypsin
77–89	33	K.EVSPSGRVYQTVR.H	Trypsin
133–144	46	K.YHPSSPTSTSSK.L	Trypsin
69–76	32	R.TTSWATPK.E	Trypsin/chymotrypsin
77–85	27	K.EVSPSGRVY.Q	Trypsin/chymotrypsin
133–144	24	K.YHPSSPTSTSSK.L	Trypsin/chymotrypsin
133–144	21	K.YHPSSPTSTSSK.L	Trypsin/chymotrypsin

Sequence of identified MP17-phosphopeptides (after digestion with trypsin alone or trypsin followed by incubation with chymotrypsin) is separated from flanking amino acids by dots and phosphorylated serines are given in bold; score-values calculated by MASCOT [Score = -10 × Log(p)] are a means of expressing probability p that a match of theoretical and observed mass is by chance, where a score of 20 accounts for p ≤ 0.01.