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Lookup NU author(s): Dr Jon Bell, Adrain John Dunford, Professor Richard Henderson
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The core issue: Cofactors in nitrogenases transform dinitrogen into ammonia, and protons into dihydrogen (see scheme). Studies on cuboidal {Fe4S4}2+ and {MoFe3S4}3+ clusters show that Mo clusters are protonated more slowly, but have a higher affinity for binding substrates, than Mo-free clusters. These reactivities explain why the Mo-based nitrogenase is the most efficient at fixing dinitrogen rather than producing dihydrogen.
Author(s): Bell J, Dunford AJ, Hollis E, Henderson RA
Publication type: Article
Publication status: Published
Journal: Angewandte Chemie - International Edition
Year: 2003
Volume: 42
Issue: 10
Pages: 1149-1152
ISSN (print): 1433-7851
ISSN (electronic): 1521-3773
Publisher: Wiley-Blackwell Publishing
URL: http://dx.doi.org/10.1002/anie.200390302
DOI: 10.1002/anie.200390302
PubMed id: 12640646
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