1KOL:
reference: Crystal structure of formaldehyde dehydrogenase from Pseudomonas putida: the structural origin of the tightly bound cofactor in nicotinoprotein dehydrogenases., Tanaka N, Kusakabe Y, Ito K, Yoshimoto T, Nakamura KT, J Mol Biol 2002 Nov 29;324(3):519-33. PMID: 12445786

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