2FR8:
reference: The role of invariant amino acid residues at the hydride transfer site of proton-translocating transhydrogenase., Brondijk TH, van Boxel GI, Mather OC, Quirk PG, White SA, Jackson JB, J Biol Chem. 2006 May 12;281(19):13345-54. Epub 2006 Mar 13. PMID: 16533815

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