Table 1.

Muropeptides detected in the cortex analysis of 630Δerm, ΔCD630_14300, ΔCD630_27190 and ΔCD630_14300 ΔCD630_27190 strains

The following terms and abbreviations are used: ΔCD14300, CD630_14300; ΔCD27190, CD630_27190 cortex; GM, GlcNAc-MurNAc; RT, retention time; deAc, N-deacetylation of the glucosamine; deAcX2, number of N-deacetylated glucosamine; Tri, disaccharide-tripeptide; Tetra, disaccharide-tetrapeptide; Gly, glycine; ND, not detected in the profile; NI, not identified with the fragmentation profile; gray cells, peaks for which precursor ion was not abundant enough to allow for fragmentation. Tri and tetra contain E-mDAP. The charge z is indicated in Table S1. Percentage of each peak was calculated as the ratio of the peak area over the sum of areas of all the peaks identified in the table.