3KB6:
reference: Structure of D-lactate dehydrogenase from Aquifex aeolicus complexed with NAD(+) and lactic acid (or pyruvate)., Antonyuk SV, Strange RW, Ellis MJ, Bessho Y, Kuramitsu S, Inoue Y, Yokoyama S, Hasnain SS, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2009 Dec 1;65(Pt, 12):1209-13. Epub 2009 Nov 27. PMID: 20054113

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