Escherichia coli, manganese superoxide dismutase

M.S. Lah, M.M. Dixon, K.A. Pattridge, W.C. Stallings, J.A. Fee, and M.L. Ludwig, Structure-function in Escherichia coli iron superoxide dismutase comparisons with the manganese enzyme from Thermus thermophilus. Biochemistry. 34, 1646-1660 (1995). 

Nettleton CJ, Bull C, Baldwin TO, Fee JA. (1984). Isolation of the Escherichia coli iron superoxide dismutase gene Evidence that intracellular superoxide concentration does not regulate oxygen-dependent synthesis of the manganese superoxide dismutase. Proc Nat Acad Sci USA 81 4970-4973. 

K.M. Beem, J.S. Richardson, and D.C. Richardson, Manganese, superoxide dismutases from Escherichia coli and from yeast mitochondria preliminary x-ray crystallographic studies. J. Mol. Biol. 105, 327-332 (1976). 

Studies of Superoxide with Manganese Complexes and Manganese Superoxide Dismutase from Escherichia coli... 

Pick M, Rabani J, Yost F, Fridovich I (1974) The catalytic mechanism of the manganese-containing superoxide dismutase of Escherichia coli studied by pulse radiolysis. J Am Chem Soc 96 7329-7333... 

Manganese compounds of biologic importance are examined by pulse radiolysis e.g., the rate of dismutation of radiation-generated Of is catalyzed by Escherichia coli, Mn-containing superoxide dismutase involving electron transfer in which enzymes with Mn(IV), Mn(IIl), Mn(II) and Mn(I) oxidation states are involved. A kinetic model for the reaction mechanism of an Mn dismutase from Bacillus stearothermophilus accounts for the variation of the rate of decay on the concentrations of Oj, enzyme, HjOj, NaNj, KCN and H+. 

K7. Keele, B. B., McCord, J. M., and Fridovich, I., Superoxide dismutase from Escherichia coli B. A new manganese-containing enzyme. J. Biol. Chem. 245, 6176-6181 (1970). 

Superoxide dismutases of some microorganisms (such as Escherichia coli) and some animals contain Mn " /Mn + ions instead of copper and zinc ions as the cofactor (see Section 3.8.1.13.2). Catalases of some microorganisms (e.g. the bacteria Lactobacillus plantarum) contain manganese instead of haem iron. 

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