Table 1. Five most abundant peptidases identified in fraction 16.

NO	Protein	Score	Mass	emPAI
9	Aminopeptidase N (PepN)	2311	99313	1.56
139	Predicted peptidase	244	45288	0.33
147	Predicted hydrolase	227	23200	0.71
176	Predicted hydrolase	172	34153	0.74
201	Predicted peptidase required for the maturation of the antibiotic peptide MccB17	138	48625	0.39

NO. represents the number of proteins in the order of decreasing score in fraction 16.

emPAI represents protein abundance.