Нитрогеназа
| Nitrogenaza | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 | |||||||||
| Identifikatori | |||||||||
| EC broj | 1.18.6.1 | ||||||||
| CAS broj | 2598062 | ||||||||
| Baze podataka | |||||||||
| IntEnz | IntEnz pregled | ||||||||
| BRENDA | BRENDA pristup | ||||||||
| ExPASy | NiceZyme pregled | ||||||||
| KEGG | KEGG pristup | ||||||||
| MetaCyc | metabolički put | ||||||||
| PRIAM | profil | ||||||||
| Strukture PBP | RCSB PDB PDBe PDBj PDBsum | ||||||||
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Nitrogenaza (EC 1.18.6.1, Nitrogenase) je enzim sa sistematskim imenom redukovani feredoksin:dinitrogen oksidoreduktaza (ATP-hidroliza).[1][2][3][4] Ovaj enzim katalizuje sledeću hemijsku reakciju
- 8 redukovani feredoksin + 8 H+ + N2 + 16 ATP + 16H2O 8 oksidovani feredoksin + H2 + 2 NH3 + 16 ADP + 16 fosfat
Za dejstvo ovog enzim je neohodan Mg2+. On se sastoji od dva proteina. Oni se mogu razdvojiti. Oba proteina su neophodna za nitrogenazno dejstvo.
Reference[уреди | уреди извор]
- ^ Zumft, W.G., Paneque, A., Aparicio, P.J. and Losada, M. (1969). „Mechanism of nitrate reduction in Chlorella”. Biochem. Biophys. Res. Commun. 36: 980—986. PMID 4390523.
- ^ Liang, J. & Burris, R.H. (1988). „Hydrogen burst associated with nitrogenase-catalyzed reactions”. Proc. Natl. Acad. Sci. USA. 85: 9446—9450. PMID 3200830.
- ^ Dance, I. (2004). „The mechanism of nitrogenase. Computed details of the site and geometry of binding of alkyne and alkene substrates and intermediates”. J. Am. Chem. Soc. 126: 11852—11863. PMID 15382920.
- ^ Chan, J.M., Wu, W., Dean, D.R. and Seefeldt, L.C. (2000). „Construction and characterization of a heterodimeric iron protein: defining roles for adenosine triphosphate in nitrogenase catalysis”. Biochemistry. 39: 7221—7228. PMID 10852721.
Literatura[уреди | уреди извор]
- Nicholas C. Price; Lewis Stevens (1999). Fundamentals of Enzymology: The Cell and Molecular Biology of Catalytic Proteins (Third изд.). USA: Oxford University Press. ISBN 019850229X.
- Eric J. Toone (2006). Advances in Enzymology and Related Areas of Molecular Biology, Protein Evolution (Volume 75 изд.). Wiley-Interscience. ISBN 0471205036.
- Branden C; Tooze J. Introduction to Protein Structure. New York, NY: Garland Publishing. ISBN 0-8153-2305-0.
- Irwin H. Segel. Enzyme Kinetics: Behavior and Analysis of Rapid Equilibrium and Steady-State Enzyme Systems (Book 44 изд.). Wiley Classics Library. ISBN 0471303097.
- William P. Jencks (1987). Catalysis in Chemistry and Enzymology. Dover Publications. ISBN 0486654605.
Spoljašnje veze[уреди | уреди извор]
- Nitrogenase на US National Library of Medicine Medical Subject Headings (MeSH)
