| Autor: |
D. Woo, J. Schlessman, Jongsun Kim, Arthur J. Chirino, Michael K. Chan, Douglas C. Rees, Millie M. Georgiadis, H. Komiya, Barbara T. Hsu |
| Rok vydání: |
1993 |
| Předmět: |
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| Zdroj: |
New Horizons in Nitrogen Fixation ISBN: 9789048142552 |
| DOI: |
10.1007/978-94-017-2416-6_9 |
| Popis: |
The biological conversion of dinitrogen to ammonia is catalyzed by the nitrogenase enzyme system found in nitrogen-fixing bacteria (Burgess, 1984; Orme-Johnson, 1985; Smith and Eady, 1992). The conventional nitrogenase consists of two component proteins, the iron (Fe-) protein and the molybdenum-iron (MoFe-) protein, that together mediate the ATP dependent reduction of substrates such as dinitrogen and H+ to products. Substrate reduction by nitrogenase involves three basic types of reactions: the reduction of Fe-protein by electron carriers such as flavodoxin; the ATP dependent transfer of single electrons from Fe-protein to MoFe-protein, with a minimal stoichiometry of two molecules of MgATP hydrolyzed per electron transferred; and electron and proton transfer to the substrate, which is almost certainly bound to the FeMo-cofactor of MoFe-protein. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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