Paramagnetic active site models for the molybdenum-copper carbon monoxide dehydrogenase

J Am Chem Soc. 2006 Feb 22;128(7):2164-5. doi: 10.1021/ja056500f.

Abstract

New paramagnetic, heterobimetallic Mo/Cu complexes featuring the Mo(=O)(mu-S)Cu core of O. carboxidovorans carbon monoxide dehydrogenase have been synthesized and structurally and spectroscopically characterized. The complexes exhibit EPR spectra (left graphic) indicative of extensive electron delocalization across the Mo-S-Cu core, in agreement with computational studies identifying the singly-occupied molecular orbital (right graphic).

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Aldehyde Oxidoreductases / chemistry*
  • Aldehyde Oxidoreductases / metabolism*
  • Binding Sites
  • Copper / chemistry*
  • Copper / metabolism
  • Crystallography, X-Ray
  • Electron Spin Resonance Spectroscopy
  • Models, Molecular
  • Molybdenum / chemistry*
  • Molybdenum / metabolism
  • Multienzyme Complexes / chemistry*
  • Multienzyme Complexes / metabolism*

Substances

  • Multienzyme Complexes
  • Copper
  • Molybdenum
  • Aldehyde Oxidoreductases
  • carbon monoxide dehydrogenase