Structure of peptidoglycan of S. aureus and several other bacteria.

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Lysozyme catalyzes the hydrolysis of a glycosidic bond of peptidoglycan NAG = N-acetylglucosamine NAM = N-acetylmuramic acid.

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Structure of peptidoglycan of S. aureus and several other bacteria. Structure of peptidoglycan of S. aureus and several other bacteria. The peptidoglycan of gram-negative bacteria and gram-positive bacilli is indicated on the right. Digestion by different enzymes (glucosaminidase, muramidase, amidase, and endopeptidase) is shown by dotted arrows. MDP structure is indicated in the dotted square. NAG, N-acetylglucosamine; NAM, N-acetylmuramic acid; m-DAP, m-diaminopimelic acid. Bénédicte Fournier, and Dana J. Philpott Clin. Microbiol. Rev. 2005; doi:10.1128/CMR.18.3.521-540.2005