Structural examination of the nickel site in chromatium vinosum hydrogenase: redox state oscillations and structural changes accompanying reductive activation and CO binding.

@article{Davidson2000StructuralEO,
  title={Structural examination of the nickel site in chromatium vinosum hydrogenase: redox state oscillations and structural changes accompanying reductive activation and CO binding.},
  author={Gerard Davidson and Suranjan Bhanja Choudhury and Zhiyong Gu and Kakoli Bose and Winfried Roseboom and Simon P. J. Albracht and Michael J Maroney},
  journal={Biochemistry},
  year={2000},
  volume={39 25},
  pages={
          7468-79
        }
}
An X-ray absorption spectroscopic study of structural changes occurring at the Ni site of Chromatium vinosum hydrogenase during reductive activation, CO binding, and photolysis is presented. Structural details of the Ni sites for the ready silent intermediate state, SI(r), and the carbon monoxide complex, SI-CO, are presented for the first time in any hydrogenase. Analysis of nickel K-edge energy shifts in redox-related samples reveals that reductive activation is accompanied by an oscillation… CONTINUE READING
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