A structure-based mechanism for copper-zinc superoxide dismutase.

@article{Hart1999ASM,
  title={A structure-based mechanism for copper-zinc superoxide dismutase.},
  author={P John Hart and Melinda Balbirnie and Nancy L Ogihara and Aram M Nersissian and M. S. Weiss and Joan Selverstone Valentine and David S Eisenberg},
  journal={Biochemistry},
  year={1999},
  volume={38 7},
  pages={
          2167-78
        }
}
A reaction cycle is proposed for the mechanism of copper-zinc superoxide dismutase (CuZnSOD) that involves inner sphere electron transfer from superoxide to Cu(II) in one portion of the cycle and outer sphere electron transfer from Cu(I) to superoxide in the other portion of the cycle. This mechanism is based on three yeast CuZnSOD structures determined by X-ray crystallography together with many other observations. The new structures reported here are (1) wild type under 15 atm of oxygen… CONTINUE READING
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