Literature DB >> 1309955

Could CuB be the site of redox linkage in cytochrome c oxidase?

R W Larsen1, L P Pan, S M Musser, Z Y Li, S I Chan.   

Abstract

This paper explores the proton pumping function of cytochrome c oxidase [ferrocytochrome-c:oxygen oxidoreductase (EC 1.9.3.1)] based upon redox linkage at the "high-potential" CuB center. A model is proposed that is derived from a redox-linked ligand exchange mechanism previously described for the CuA site. Qualitative analysis of this mechanism indicates that such a mechanism is feasible. However, the relatively short distance between CuB and cytochrome a3 implies that the uncoupling electron transfers are quite facile. In addition, the position of the CuB center with respect to the inner mitochondrial membrane argues against redox linkage at the CuB site.

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Year:  1992        PMID： 1309955      PMCID： PMC48311          DOI： 10.1073/pnas.89.2.723

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  22 in total

1.  An infrared study of CO binding to heart cytochrome c oxidase and hemoglobin A. Implications re O2 reactions.

Authors:  S Yoshikawa; M G Choc; M C O'Toole; W S Caughey
Journal:  J Biol Chem       Date:  1977-08-10       Impact factor: 5.157

2.  Cytochrome c oxidase: decay of the primary oxygen intermediate involves direct electron transfer from cytochrome a.

Authors:  S H Han; Y C Ching; D L Rousseau
Journal:  Proc Natl Acad Sci U S A       Date:  1990-11       Impact factor: 11.205

3.  Observation of the Fe4+ = O stretching Raman band for cytochrome oxidase compound B at ambient temperature.

Authors:  T Ogura; S Takahashi; K Shinzawa-Itoh; S Yoshikawa; T Kitagawa
Journal:  J Biol Chem       Date:  1990-09-05       Impact factor: 5.157

Review 4.  Cytochrome c oxidase: understanding nature's design of a proton pump.

Authors:  S I Chan; P M Li
Journal:  Biochemistry       Date:  1990-01-09       Impact factor: 3.162

5.  The effect of pH and temperature on the reaction of fully reduced and mixed-valence cytochrome c oxidase with dioxygen.

Authors:  M Oliveberg; P Brzezinski; B G Malmström
Journal:  Biochim Biophys Acta       Date:  1989-12-07

6.  How does cytochrome oxidase pump protons? A "cooperative proton pump" model.

Authors:  M Wikström
Journal:  Ann N Y Acad Sci       Date:  1988       Impact factor: 5.691

7.  Quaternary structures and low frequency molecular vibrations of haems of deoxy and oxyhaemoglobin studied by resonance raman scattering.

Authors:  K Nagai; T Kitagawa; H Morimoto
Journal:  J Mol Biol       Date:  1980-01-25       Impact factor: 5.469

8.  Appearance of the v(FeIV = O) vibration from a ferryl-oxo intermediate in the cytochrome oxidase/dioxygen reaction.

Authors:  C Varotsis; G T Babcock
Journal:  Biochemistry       Date:  1990-08-14       Impact factor: 3.162

9.  Ferryl and hydroxy intermediates in the reaction of oxygen with reduced cytochrome c oxidase.

Authors:  S Han; Y C Ching; D L Rousseau
Journal:  Nature       Date:  1990-11-01       Impact factor: 49.962

10.  Structural features and the reaction mechanism of cytochrome oxidase: iron and copper X-ray absorption fine structure.

Authors:  L Powers; B Chance; Y Ching; P Angiolillo
Journal:  Biophys J       Date:  1981-06       Impact factor: 4.033
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  8 in total

1.  Understanding the cytochrome c oxidase proton pump: thermodynamics of redox linkage.

Authors:  S M Musser; S I Chan
Journal:  Biophys J       Date:  1995-06       Impact factor: 4.033

Review 2.  Mechanistic and phenomenological features of proton pumps in the respiratory chain of mitochondria.

Authors:  S Papa; M Lorusso; N Capitanio
Journal:  J Bioenerg Biomembr       Date:  1994-12       Impact factor: 2.945

Review 3.  Proton translocation in cytochrome c oxidase: redox linkage through proximal ligand exchange on cytochrome a3.

Authors:  D L Rousseau; Y Ching; J Wang
Journal:  J Bioenerg Biomembr       Date:  1993-04       Impact factor: 2.945

4.  Fluorescence quenching of reconstituted NCD-4-labeled cytochrome c oxidase complex by DOXYL-stearic acids.

Authors:  S M Musser; R W Larsen; S I Chan
Journal:  Biophys J       Date:  1993-12       Impact factor: 4.033

5.  Modulation of the active site conformation by site-directed mutagenesis in cytochrome c oxidase from Paracoccus denitrificans.

Authors:  Hong Ji; Tapan K Das; Anne Puustinen; Mårten Wikström; Syun-Ru Yeh; Denis L Rousseau
Journal:  J Inorg Biochem       Date:  2009-12-03       Impact factor: 4.155

Review 6.  Insight into the active-site structure and function of cytochrome oxidase by analysis of site-directed mutants of bacterial cytochrome aa3 and cytochrome bo.

Authors:  J P Hosler; S Ferguson-Miller; M W Calhoun; J W Thomas; J Hill; L Lemieux; J Ma; C Georgiou; J Fetter; J Shapleigh
Journal:  J Bioenerg Biomembr       Date:  1993-04       Impact factor: 2.945

Review 7.  The histidine cycle: a new model for proton translocation in the respiratory heme-copper oxidases.

Authors:  J E Morgan; M I Verkhovsky; M Wikström
Journal:  J Bioenerg Biomembr       Date:  1994-12       Impact factor: 2.945

8.  Spectroscopic evidence for a heme-heme binuclear center in the cytochrome bd ubiquinol oxidase from Escherichia coli.

Authors:  J J Hill; J O Alben; R B Gennis
Journal:  Proc Natl Acad Sci U S A       Date:  1993-06-15       Impact factor: 11.205
  8 in total

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