4KNK:
reference: Structure-function analysis of Staphylococcus aureus amidase reveals the determinants of peptidoglycan recognition and cleavage., Buttner FM, Zoll S, Nega M, Gotz F, Stehle T, J Biol Chem. 2014 Apr 18;289(16):11083-94. doi: 10.1074/jbc.M114.557306. Epub, 2014 Mar 5. PMID: 24599952

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