Fig. 2

MALDI-TOF MS analysis of purified bacteriocins from E. faecium M1M10 (a) and E. faecium M3K31 (b). MALDI TOF/TOF tandem MS analysis of the purified bacteriocin from E. faecium M3K31 (c). The carboxy-terminal (y-ion series) shows the 27-residue peptide SVDWGKAIGIIGNNAAANLTTGGKAGW (top line) and the amino-terminal (b-series) shows the 14-residue peptide AAANLTTGGKAGWK (bottom line). Numbers indicate molecular mass in daltons