Purification, crystallization and preliminary X-ray crystal structure analysis of copper amine oxidase from Arthrobacter globoformis

beta-Phenylethylamine oxidase from the Gram-positive bacterium Arthrobacter globoformis has been crystallized as three crystal forms. Two belong to space group C2 and one to space group P2(1)2(1)2(1), respectively. The unit-cell volumes are consistent with one subunit of 70 644 Da per asymmetric unit for the two monoclinic forms, and with two subunits per asymmetric unit for the orthorhombic crystals. Three-dimensional intensity data have been recorded to 2.8 Angstrom resolution for one of the monoclinic crystal forms and to 3 Angstrom resolution for the orthorhombic crystal form.