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Periplasmic nitrate reductase revisited: a sulfur atom completes the sixth coordination of the catalytic molybdenum

✍ Scribed by Shabir Najmudin; Pablo J. González; José Trincão; Catarina Coelho; Abhik Mukhopadhyay; Nuno M. F. S. A. Cerqueira; Carlos C. Romão; Isabel Moura; José J. G. Moura; Carlos D. Brondino; Maria J. Romão

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 996 KB
Volume: 13
Category: Article
ISSN: 1432-1327
DOI: 10.1007/s00775-008-0359-6

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The effect of the sixth sulfur ligand in

The effect of the sixth sulfur ligand in the catalytic mechanism of periplasmic nitrate reductase

✍ N. M. F. S. A. Cerqueira; P. J. Gonzalez; C. D. Brondino; M. J. Romão; C. C. Rom 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 767 KB

## Abstract The catalytic mechanism of nitrate reduction by periplasmic nitrate reductases has been investigated using theoretical and computational means. We have found that the nitrate molecule binds to the active site with the Mo ion in the +6 oxidation state. Electron transfer to the active sit