2DW6:
reference: Evolution of Enzymatic Activities in the Enolase Superfamily: d-Tartrate Dehydratase from Bradyrhizobium japonicum(,)., Yew WS, Fedorov AA, Fedorov EV, Wood BM, Almo SC, Gerlt JA, Biochemistry. 2006 Dec 12;45(49):14598-14608. PMID: 17144653

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