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   <subfield code="a">10.1007/s00775-015-1268-0</subfield>
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   <subfield code="a">Incorporation of molybdenum in rubredoxin: models for mononuclear molybdenum enzymes</subfield>
   <subfield code="h">[Elektronische Daten]</subfield>
   <subfield code="c">[Biplab Maiti, Luisa Maia, Célia Silveira, Smilja Todorovic, Cintia Carreira, Marta Carepo, Raquel Grazina, Isabel Moura, Sofia Pauleta, José Moura]</subfield>
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   <subfield code="a">Molybdenum is found in the active site of enzymes usually coordinated by one or two pyranopterin molecules. Here, we mimic an enzyme with a mononuclear molybdenum-bis pyranopterin center by incorporating molybdenum in rubredoxin. In the molybdenum-substituted rubredoxin, the metal ion is coordinated by four sulfurs from conserved cysteine residues of the apo-rubredoxin and two other exogenous ligands, oxygen and thiol, forming a Mo(VI)-(S-Cys)4(O)(X) complex, where X represents -OH or -SR. The rubredoxin molybdenum center is stabilized in a Mo(VI) oxidation state, but can be reduced to Mo(IV) via Mo(V) by dithionite, being a suitable model for the spectroscopic properties of resting and reduced forms of molybdenum-bis pyranopterin-containing enzymes. Preliminary experiments indicate that the molybdenum site built in rubredoxin can promote oxo transfer reactions, as exemplified with the oxidation of arsenite to arsenate.</subfield>
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   <subfield code="a">SBIC, 2015</subfield>
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  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">Metal-substituted rubredoxin</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
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   <subfield code="a">Models of molybdenum-containing enzymes</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">Resonance Raman</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">19F-NMR</subfield>
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  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">DMSO reductase family</subfield>
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  </datafield>
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   <subfield code="a">apo-Rd : Apo-rubredoxin</subfield>
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  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">β-ME : β-Mercaptoethanol</subfield>
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  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">BSO : Biotin sulfoxide</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">CT : Charge transfer</subfield>
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  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">CV : Cyclic voltammetry</subfield>
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  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">DMSOR : Dimethylsulfoxide reductase</subfield>
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  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">DTT : Dithiothreitol</subfield>
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   <subfield code="a">DPV : Differential pulsed voltammetry</subfield>
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  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">Fe-Rd : Iron-containing rubredoxin</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">GC : Glassy carbon</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">hSO : Human sulfite oxidase</subfield>
   <subfield code="2">nationallicence</subfield>
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  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">M : Metal</subfield>
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  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">Mo- bis PGD : Molybdenum-bis pyranopterin guanosine dinucleotide-containing enzyme</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">Mo-Rd : Molybdenum-substituted rubredoxin</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">PGE : Pyrolytic graphite electrode</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">NHE : Normal hydrogen electrode</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">RR : Resonance Raman</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">Rd : Rubredoxin</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">TCA : Trichloroacetic acid</subfield>
   <subfield code="2">nationallicence</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2="7">
   <subfield code="a">TFET : 2,2,2-Trifluoroethanethiol</subfield>
   <subfield code="2">nationallicence</subfield>
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   <subfield code="a">Maiti</subfield>
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  <datafield tag="773" ind1="0" ind2=" ">
   <subfield code="t">JBIC Journal of Biological Inorganic Chemistry</subfield>
   <subfield code="d">Springer Berlin Heidelberg</subfield>
   <subfield code="g">20/5(2015-07-01), 821-829</subfield>
   <subfield code="x">0949-8257</subfield>
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   <subfield code="a">Metadata rights reserved</subfield>
   <subfield code="b">Springer special CC-BY-NC licence</subfield>
   <subfield code="2">nationallicence</subfield>
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