(57)Fe ENDOR Spectroscopy and ‘Electron Inventory’ Analysis of the Nitrogenase E(4) Intermediate Suggest the Metal-Ion Core of FeMo-cofactor Cycles Through Only One Redox Couple

N(2) binds to the active-site metal cluster in the nitrogenase MoFe protein, the FeMo-cofactor ([7Fe-9S-Mo-homocitrate-X]; FeMo-co) only after the MoFe protein has accumulated three or four electrons/protons (E(3) or E(4) states), with the E(4) state being optimally activated. Here we study the FeMo...

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Main Authors: Doan, Peter E., Telser, Joshua, Barney, Brett M., Igarashi, Robert Y., Dean, Dennis R., Seefeldt, Lance C., Hoffman, Brian M.
Formato: Artigo
Idioma:Inglês
Publicado: 2011
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Article
Acceso en liña:https://ncbi.nlm.nih.gov/pmc/articles/PMC3232045/
https://ncbi.nlm.nih.gov/pubmed/21980917
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1021/ja205304t
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