2Z9C:
reference: Expansion of Substrate Specificity and Catalytic Mechanism of Azoreductase by X-ray Crystallography and Site-directed Mutagenesis., Ito K, Nakanishi M, Lee WC, Zhi Y, Sasaki H, Zenno S, Saigo K, Kitade Y, Tanokura M, J Biol Chem. 2008 May 16;283(20):13889-13896. Epub 2008 Mar 12. PMID: 18337254

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