Fotosistem I
Fotosistem I (EC 1.97.1.12, Photosystem I) je enzim sa sistematskim imenom plastocijanin:feredoksin oksidoreduktaza (zavisna od svetla).[1][2][3][4] Ovaj enzim katalizuje sledeću hemijsku reakciju
| Fotosistem I | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 | |||||||||
| Identifikatori | |||||||||
| EC broj | 1.97.1.12 | ||||||||
| 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 | ||||||||
| |||||||||
- redukovani plastocijanin + oksidovani feredoksin + hnu oksidovani plastocijanin + redukovani feredoksin
Ovaj enzim sadrži hlorofil, filohinone, karotenoide i [4Fe-4S] klustere. Citohrom c6 može da deluje kao alternativni elektronski donor.
Reference уреди
- ^ Takabe, T., Iwasaki, Y., Hibino, T. and Ando, T. (1991). „Subunit composition of photosystem I complex that catalyzes light-dependent transfer of electrons from plastocyanin to ferredoxin”. J. Biochem. 110: 622—627. PMID 1778985.
- ^ van Thor, J.J., Geerlings, T.H., Matthijs, H.C. and Hellingwerf, K.J. (1999). „Kinetic evidence for the PsaE-dependent transient ternary complex photosystem I/Ferredoxin/Ferredoxin:NADP+ reductase in a cyanobacterium”. Biochemistry. 38: 12735—12746. PMID 10504244.
- ^ Chitnis, P.R. (2001). „Photosystem I: function and physiology”. Annu. Rev. Plant Physiol. Plant Mol. Biol. 52: 593—626. PMID 11337410.
- ^ Amunts, A., Toporik, H., Borovikova, A. and Nelson, N. (2010). „Structure determination and improved model of plant photosystem I”. J. Biol. Chem. 285: 3478—3486. PMID 19923216.
Literatura уреди
- 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
- Photosystem+I на US National Library of Medicine Medical Subject Headings (MeSH)
