2I8C:
reference: Allosteric inhibition of Staphylococcus aureus D-alanine:D-alanine ligase revealed by crystallographic studies., Liu S, Chang JS, Herberg JT, Horng MM, Tomich PK, Lin AH, Marotti KR, Proc Natl Acad Sci U S A. 2006 Oct 10;103(41):15178-83. Epub 2006 Oct 2. PMID: 17015835

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