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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Kinetic study of nickel-thiolate oxygenation by hydrogen peroxide. Implications for nickel-containing superoxide dismutase.

The rate of metal-thiolate oxygenation by hydrogen peroxide has been measured for a model complex of nickel-containing superoxide dismutase (NiSOD) as 0.47 ± 0.03 M(-1) s(-1) at 303 K. Under typical synthetic conditions the reaction proceeds within seconds yielding S-oxygenate products. At biologically relevant H(2)O(2) concentrations, half-life times extend to several hours or days. The results suggest H(2)O(2) oxidation of NiSOD is not kinetically competent on the SOD timescale accounting for the lack of S-oxygenation byproducts.[1]

References

  1. Kinetic study of nickel-thiolate oxygenation by hydrogen peroxide. Implications for nickel-containing superoxide dismutase. Herdt, D.R., Grapperhaus, C.A. Dalton. Trans (2012) [Pubmed]
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