The crystal structure of AzoR (azoreductase) from Escherichia coli: Oxidized AzoR in tetragonal crystals (The resolution has improved from 1.8 (1v4b) to 1.4 angstrom)
Ito, K. et al., Expansion of Substrate Specificity and Catalytic Mechanism of Azoreductase by X-ray Crystallography and Site-directed Mutagenesis. J.Biol.Chem. (2008)