Abstract
Aquaspirillum magnetotacticum MS-1 cells cultured microaerobically (dissolved O2 tension 1% of saturation), expressed proteins with superoxide dismutase (SOD) activity. The majority (roughly 95%) of total cell superoxide dismutase activity was located in the cell periplasm with little or no activity in the cell cytoplasm. Irontype SOD (FeSOD) contributed 88% of the total activity activity detected, although a manganese-type SOD (MnSOD) was present in the periplasm as well. Cells cultured at a higher dissolved O2 tension (10% of saturation) expressed increased activity of the MnSOD relative to that of the FeSOD.
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Short, K.A., Blakemore, R.P. Periplasmic superoxide dismutases in Aquaspirillum magnetotacticum . Arch. Microbiol. 152, 342–346 (1989). https://doi.org/10.1007/BF00425171
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DOI: https://doi.org/10.1007/BF00425171