title: Purification and characterization of a cold-active iron superoxide dismutase from a Psychrophilic Bacterium, Marinomonas sp. NJ522.
abstract: 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 degree C was nearly 35% of the maximum activity.
authors.affiliation: College of life Sciences, Ocean University of China, Qingdao.
authors.forename: Zhou
authors.initials: Z
authors.lastname: Zheng
authors.forename: Ying-Hui
authors.initials: YH
authors.lastname: Jiang
authors.forename: Jin-Lai
authors.initials: JL
authors.lastname: Miao
authors.forename: Quan-Fu
authors.initials: QF
authors.lastname: Wang
authors.forename: Bo-Tao
authors.initials: BT
authors.lastname: Zhang
authors.forename: Guang-You
authors.initials: GY
authors.lastname: Li
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry / Q000302:isolation & purification*; D003080:Cold Temperature; D006090:Gram-Negative Bacteria / Q000201:enzymology*; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D013482:Superoxide Dismutase / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D001426:Bacterial Proteins; D013482:Superoxide Dismutase