1E4E:
reference: The molecular basis of vancomycin resistance in clinically relevant Enterococci: crystal structure of D-alanyl-D-lactate ligase (VanA)., Roper DI, Huyton T, Vagin A, Dodson G, Proc Natl Acad Sci U S A 2000 Aug 1;97(16):8921-5. PMID: 10908650

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