Fitoen sintaza
| Fitoen sintaza | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifikatori | |||||||||
| EC broj | 2.5.1.32 | ||||||||
| CAS broj | 50936-61-3 | ||||||||
| 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 | ||||||||
| |||||||||
Fitoen sintaza (EC 2.5.1.32, prefitoen-difosfat sintaza, fitoen sintetaza, PSaze, geranilgeranil-difosfat geranilgeraniltransferaza) je enzim sa sistematskim imenom geranilgeranil-difosfat:geranilgeranil-difosfat geranilgeraniltransferaza (formira 15-cis-fitoen).[1][2] Ovaj enzim katalizuje sledeću hemijsku reakciju
- 2 geranilgeranil difosfat 15-cis-fitoen + 2 difosfat (sveukupna reakcija)
- (1a) 2 geranilgeranil difosfat difosfat + prefitoen difosfat
- (1b) prefitoen difosfat 15-cis-fitoen + difosfat
Za dejstvo ovog enzima je neophodan jon Mn2+.
Reference[uredi | uredi izvor]
- ^ Gregonis, D.E. & Rilling, H.C. (1974). „The stereochemistry of trans-phytoene synthesis. Some observations on lycopersene as a carotene precursor and a mechanism for the synthesis of cis- and trans-phytoene”. Biochemistry. 13: 1538—1542. PMID 4819767.
- ^ Misawa, N., Truesdale, M.R., Sandmann, G., Fraser, P.D., Bird, C., Schuch, W. and Bramley, P.M. (1994). „Expression of a tomato cDNA coding for phytoene synthase in Escherichia coli, phytoene formation in vivo and in vitro, and functional analysis of the various truncated gene products”. J. Biochem. (Tokyo). 116: 980—985. PMID 7896759.
Literatura[uredi | uredi izvor]
- Nicholas C. Price; Lewis Stevens (1999). Fundamentals of Enzymology: The Cell and Molecular Biology of Catalytic Proteins (Third izd.). USA: Oxford University Press. ISBN 019850229X.
- Eric J. Toone (2006). Advances in Enzymology and Related Areas of Molecular Biology, Protein Evolution (Volume 75 izd.). 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 izd.). Wiley Classics Library. ISBN 0471303097.
- William P. Jencks (1987). Catalysis in Chemistry and Enzymology. Dover Publications. ISBN 0486654605.
Spoljašnje veze[uredi | uredi izvor]
- 15-cis-phytoene+synthase na US National Library of Medicine Medical Subject Headings (MeSH)
