Biotechnology Letters, Vol.28, No.2, 85-88, 2006
Purification and characterization of a cold-active iron superoxide dismutase from a psychrophilic bacterium, Marinomonas sp NJ522
Marinomonas sp. NJ522, isolated from Antarctic sea ice, produces a cold-active iron superoxide dismutase (SOD; EC 1.15.1.1). The purified SOD was dimeric and had an approx. Mr of 48 kDa. Highest activity was detected from pH 8 to 10 and at 40 degrees C (assayed over 10 min). Activity at 0 degrees C was nearly 35% of the maximum activity.