
Keywords: Peptidoglycan; Staphylococcus aureus; Metabolomics; Cell wall; Alr; Alanine racemase; ATCC; American Type Culture Collection; Ddl; D-Ala-D-Ala ligase; DMHA; N,N-dimethylhexylamine; LC-MS/MS; Liquid chromatography - tandem mass spectrometry; DAP; meso-Diam