2Z2P:
reference: Structural basis for streptogramin B resistance in Staphylococcus aureus by virginiamycin B lyase., Korczynska M, Mukhtar TA, Wright GD, Berghuis AM, Proc Natl Acad Sci U S A. 2007 Jun 19;104(25):10388-93. Epub 2007 Jun 11. PMID: 17563376

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