Paramagnetic active site models for the molybdenum-copper carbon monoxide dehydrogenase.
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).
Gourlay
Craig
C
School of Chemistry, University of Melbourne, Victoria 3010, Australia.
Nielsen
David J
DJ
White
Jonathan M
JM
Knottenbelt
Sushilla Z
SZ
Kirk
Martin L
ML
Young
Charles G
CG
D000445:Aldehyde Oxidoreductases / Q000737:chemistry* / Q000378:metabolism*; D001665:Binding Sites; D003300:Copper / Q000737:chemistry* / Q000378:metabolism; D018360:Crystallography, X-Ray; D004578:Electron Spin Resonance Spectroscopy; D008958:Models, Molecular; D008982:Molybdenum / Q000737:chemistry* / Q000378:metabolism; D009097:Multienzyme Complexes / Q000737:chemistry* / Q000378:metabolism*
D009097:Multienzyme Complexes; D003300:Copper; D008982:Molybdenum; D000445:Aldehyde Oxidoreductases; C019823:carbon monoxide dehydrogenase