Crystallization and preliminary diffraction studies of morphinone reductase, a flavoprotein involved in the degradation of morphine alkaloids

Morphinone reductase from Pseudomonas putida M10, a flavoprotein involved in the degradation of morphine alkaloids, was purified from an overexpressing strain of Escherichia coli and crystallized using the hanging‐drop vapour‐diffusion method. Diffraction data were collected to 2.5 Å. The I ‐centred orthorhombic cell has a monomer in the asymmetric unit. Preliminary molecular replacement calculations have been performed using Old Yellow Enzyme as the search model.