The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Radical SAM-Dependent Carbon Insertion into the Nitrogenase M-Cluster
Open accessAbstract
A Radical Mechanism: The bacterial enzyme nitrogenase plays a key role in the global nitrogen cycle by catalyzing the reduction of N 2 to ammonia. At the heart of the enzyme is a metal-sulfur cluster that contains an interstitial light atom recently identified as a carbide. The identification raised questions concerning the role of the carbide in the enzyme mechanism and how it is inserted into the metal cluster. Wiig et al. (p. 1672 ; see the Perspective by Boal and Rosenzweig ) now show that the carbide derives from S-adenosylmethionine (SAM) and is inserted into the core by the radical SAM enzyme NifB.
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Cites
Mechanism of Molybdenum Nitrogenase
Burgess, B. K., & Lowe, D. J. (1996) · Chemical Reviews · doi:10.1021/cr950055x · Cited by 1,854
Ligand design for selective complexation of metal ions in aqueous solution
Hancock, R. D., & Martell, A. E. (1989) · Chemical Reviews · doi:10.1021/cr00098a011 · Cited by 1,176
Nitrogenase MoFe-Protein at 1.16 Å Resolution: A Central Ligand in the FeMo-Cofactor
Einsle, O., Tezcan, F. A., Andrade, S. L. A., Schmid, B., Yoshida, M., Howard, J. B., & Rees, D. C. (2002) · Science · doi:10.1126/science.1073877 · Cited by 1,093
Sofia, H. J. (2001) · Nucleic Acids Research · doi:10.1093/nar/29.5.1097 · Cited by 1,019
Evidence for Interstitial Carbon in Nitrogenase FeMo Cofactor
Spatzal, T., Aksoyoglu, M., Zhang, L., Andrade, S. L. A., Schleicher, E., Weber, S., Rees, D. C., & Einsle, O. (2011) · Science · doi:10.1126/science.1214025 · Cited by 914
X-ray Emission Spectroscopy Evidences a Central Carbon in the Nitrogenase Iron-Molybdenum Cofactor
Lancaster, K. M., Roemelt, M., Ettenhuber, P., Hu, Y., Ribbe, M. W., Neese, F., Bergmann, U., & DeBeer, S. (2011) · Science · doi:10.1126/science.1206445 · Cited by 888
Self-citationMolybdenum cofactors, enzymes and pathways
Schwarz, G., Mendel, R. R., & Ribbe, M. W. (2009) · Nature · doi:10.1038/nature08302 · Cited by 872
Self-citationIsolation of an iron-molybdenum cofactor from nitrogenase
Shah, V. K., & Brill, W. J. (1977) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.74.8.3249 · Cited by 593
Frey, P. A., Hegeman, A. D., & Ruzicka, F. J. (2008) · Critical Reviews in Biochemistry and Molecular Biology · doi:10.1080/10409230701829169 · Cited by 551
The iron-molybdenum cofactor of nitrogenase
Burgess, B. K. (1990) · Chemical Reviews · doi:10.1021/cr00106a002 · Cited by 351
Cited by
Mechanism of Nitrogen Fixation by Nitrogenase: The Next Stage
Hoffman, B. M., Lukoyanov, D., Yang, Z.-Y., Dean, D. R., & Seefeldt, L. C. (2014) · Chemical Reviews · doi:10.1021/cr400641x · Cited by 1,766
Radical S-Adenosylmethionine Enzymes
Broderick, J. B., Duffus, B. R., Duschene, K. S., & Shepard, E. M. (2014) · Chemical Reviews · doi:10.1021/cr4004709 · Cited by 830
Structural Enzymology of Nitrogenase Enzymes
Einsle, O., & Rees, D. C. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.0c00067 · Cited by 409
Maia, L. B., & Moura, J. J. G. (2014) · Chemical Reviews · doi:10.1021/cr400518y · Cited by 401
Recent developments in the homogeneous reduction of dinitrogen by molybdenum and iron
MacLeod, K. C., & Holland, P. L. (2013) · Nature Chemistry · doi:10.1038/nchem.1620 · Cited by 398
Metadata
- Authors
- Wiig, J. A., Hu, Y., Lee, C. C., & Ribbe, M. W.
- Venue
- Science
- Published
- 2012-09-28
- Volume
- 337
- Issue
- 6102
- Pages
- 1672-1675
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2010267925
- Cited by
- 271
- References
- 23
- FWCI
- 10.57
- Type
- journal article
- Language
- en
- Open access
- green
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