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.