Katehol oksidaza
Katehol oksidaza (EC 1.10.3.1, difenolna oksidaza, o-difenolaza, polifenolna oksidaza, pirokateholna oksidaza, dopa oksidaza, kateholaza, o-difenol:kiseonik oksidoreduktaza, o-difenolna oksidoreduktaza) je enzim sa sistematskim imenom 1,2-benzendiol:kiseonik oksidoreduktaza.[1][2][3][4][5][6][7][8][9] Ovaj enzim katalizuje sledeću hemijsku reakciju:
| Katehol oksidaza | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifikatori | |||||||||
| EC broj | 1.10.3.1 | ||||||||
| CAS broj | 2594228 | ||||||||
| 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 | ||||||||
| |||||||||
- 2 katehol + O2 2 1,2-benzohinon + 2H2O
Ovaj enzim je tip 3 bakarni protein koji ekskluzivno katalizuje oksidaciju katehola do o-hinona.
Reference
уреди- ^ Brown, F.C. & Ward, D.N. (1957). „Preparation of a soluble mammalian tyrosinase”. J. Am. Chem. Soc. 79: 2647—2648.
- ^ Dawson, C.R. & Tarpley, W.B. (1951). „The copper oxidases”. Ур.: Sumner, J.B.; Myrb; auml & ck, K. The Enzymes. 2 (1st изд.). New York: Academic Press. стр. 454—498.
- ^ Gregory, R.P.F. & Bendall, D.S. (1966). „The purification and some properties of the polyphenol oxidse from tea (Camellia sinensis L.)”. Biochem. J. 101: 569—581.
- ^ Mason, H.S. (1956). „Structures and functions of the phenolase complex”. Nature (Lond.). 177: 79—81. PMID 13288597.
- ^ Mayer, A.M. & Harel, E. (1979). „Polyphenol oxidases in plants”. Phytochemistry. 18: 193—215.
- ^ Patil, S.S. & Zucker, M. (1965). „Potato phenolases. Purification and properties”. J. Biol. Chem. 240: 3938—3943. PMID 5842066.
- ^ Pomerantz, S.H. (1967). „3,4-Dihydroxy-L-phenylalanine as the tyrosinase cofactor. Occurrence in melanoma and binding constant”. J. Biol. Chem. 242: 5308—5314. PMID 4965136.
- ^ Robb, D.A. (1984). „`Tyrosinase”. Ур.: Lontie, R. Copper Proteins and Copper Enzymes. 2. Boca Raton, FL: CRC Press. стр. 207—240.
- ^ Gerdemann, C., Eicken, C. and Krebs, B. (2002). „The crystal structure of catechol oxidase: new insight into the function of type-3 copper proteins”. Acc. Chem. Res. 35: 183—191. PMID 11900522.
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- Catechol+oxidase на US National Library of Medicine Medical Subject Headings (MeSH)
