Files in this Data Supplement:

• Supplemental file 1 - Results of mass spectral analysis of reduced authrentic MurNAc pentapeptide and four tables.
  Table S1, summary of tandem mass spectral data of molecular ions from reduced muropeptides inferred to differ only with regard to the muramyl moiety;
  Table S2, reduced muropeptides in which the carboxylic acid groups of the peptide moiety were amidated;
  Table S3, molecular ions with m/z values and fragmentation patters that corresponded to reduced muropeptides having various combinations of muramyl residue and peptide amidations;
  Table S4, reduced muropeptides in which the carboxylic acid groups of the peptide moiety were methylated.
  PDF document, 225K.