1NPY:
reference: Crystal Structure of a Novel Shikimate Dehydrogenase from Haemophilus influenzae., Singh S, Korolev S, Koroleva O, Zarembinski T, Collart F, Joachimiak A, Christendat D, J Biol Chem 2005 Apr 29;280(17):17101-8. Epub 2005 Feb 25. PMID: 15735308

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