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  • Electron Transport  (2)
  • American Association for the Advancement of Science (AAAS)  (2)
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  • American Association for the Advancement of Science (AAAS)  (2)
  • American Association for the Advancement of Science
  • American Chemical Society
  • American Physical Society
  • American Physical Society (APS)
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  • 2000-2004  (1)
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    Crystal structure of a carbon monoxide dehydrogenase reveals a [Ni-4Fe-5S] cluster (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2001-08-18
    Beschreibung: The homodimeric nickel-containing CO dehydrogenase from the anaerobic bacterium Carboxydothermus hydrogenoformans catalyzes the oxidation of CO to CO2. A crystal structure of the reduced enzyme has been solved at 1.6 angstrom resolution. This structure represents the prototype for Ni-containing CO dehydrogenases from anaerobic bacteria and archaea. It contains five metal clusters of which clusters B, B', and a subunit-bridging, surface-exposed cluster D are cubane-type [4Fe-4S] clusters. The active-site clusters C and C' are novel, asymmetric [Ni-4Fe-5S] clusters. Their integral Ni ion, which is the likely site of CO oxidation, is coordinated by four sulfur ligands with square planar geometry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dobbek, H -- Svetlitchnyi, V -- Gremer, L -- Huber, R -- Meyer, O -- New York, N.Y. -- Science. 2001 Aug 17;293(5533):1281-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Biochemie, Abteilung Strukturforschung, Am Klopferspitz 18a, D-82152 Martinsried, Germany. dobbek@biochem.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11509720" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aldehyde Oxidoreductases/*chemistry/*metabolism ; Bacteria, Anaerobic/*enzymology ; Binding Sites ; Carbon Dioxide/metabolism ; Carbon Monoxide/*metabolism ; Catalysis ; Chemistry, Physical ; Crystallization ; Crystallography, X-Ray ; Dimerization ; Electron Transport ; Hydrogen Bonding ; Iron/*chemistry/metabolism ; Ligands ; Models, Molecular ; Multienzyme Complexes/*chemistry/*metabolism ; Nickel/*chemistry/metabolism ; Oxidation-Reduction ; Peptococcaceae/*enzymology ; Physicochemical Phenomena ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits ; Sulfur/*chemistry/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    The structure of flavocytochrome c sulfide dehydrogenase from a purple phototrophic bacterium (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1994-10-21
    Beschreibung: The structure of the heterodimeric flavocytochrome c sulfide dehydrogenase from Chromatium vinosum was determined at a resolution of 2.53 angstroms. It contains a glutathione reductase-like flavin-binding subunit and a diheme cytochrome subunit. The diheme cytochrome folds as two domains, each resembling mitochondrial cytochrome c, and has an unusual interpropionic acid linkage joining the two heme groups in the interior of the subunit. The active site of the flavoprotein subunit contains a catalytically important disulfide bridge located above the pyrimidine portion of the flavin ring. A tryptophan, threonine, or tyrosine side chain may provide a partial conduit for electron transfer to one of the heme groups located 10 angstroms from the flavin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Z W -- Koh, M -- Van Driessche, G -- Van Beeumen, J J -- Bartsch, R G -- Meyer, T E -- Cusanovich, M A -- Mathews, F S -- GM-20530/GM/NIGMS NIH HHS/ -- GM-21277/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Oct 21;266(5184):430-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939681" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Chromatium/*enzymology ; Computer Graphics ; Crystallography, X-Ray ; Cytochrome c Group/*chemistry ; Electron Transport ; Flavin-Adenine Dinucleotide/metabolism ; Hydrogen Bonding ; Models, Molecular ; Oxidoreductases/*chemistry ; Protein Conformation ; Protein Structure, Secondary
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    AKTUELLE ARTIKEL
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