1XUZ:
reference: Structural and mechanistic analysis of sialic acid synthase NeuB from Neisseria meningitidis in complex with Mn2+, phosphoenolpyruvate, and N-acetylmannosaminitol., Gunawan J, Simard D, Gilbert M, Lovering AL, Wakarchuk WW, Tanner ME, Strynadka NC, J Biol Chem 2005 Feb 4;280(5):3555-63. Epub 2004 Oct 29. PMID: 15516336

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