Superoxide dismutase from Bacillus stearothermophilus: Crystallization and preliminary X-ray diffraction studies

Superoxide dismutase from Bacillus stearothermophilus is a dimeric manganese-containing enzyme with a molecular weight of 40,000. It has been crystallised in the monoclinic space group P21 with unit cell dimensions of a = 50 A, b = 70 A, c = 69 A and β = 111 ° 10′. The asymmetric unit appears to be the dimer.