Levanska fruktotransferaza (DFA-IV)
(преусмерено са EC 4.2.2.16)
| Levanska fruktotransferaza (DFA-IV) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifikatori | |||||||||
| EC broj | 4.2.2.16 | ||||||||
| CAS broj | 88593-15-1 | ||||||||
| 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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Levanska fruktotransferaza (DFA-IV) (EC 4.2.2.16, 2,6-beta-D-fruktan D-fruktozil-D-fruktoziltransferaza (formira di-beta-D-fruktofuranoza 2,6':2',6-dianhidrid), levanska fruktotransferaza, 2,6-beta-D-fruktan lijaza (formira di-beta-D-fruktofuranoza-2,6':2',6-dianhidrid)) je enzim sa sistematskim imenom (2->6)-beta-D-fruktan lijaza (formira di-beta-D-fruktofuranoza-2,6':2',6-dianhidrid).[1][2][3] Ovaj enzim katalizuje sledeću hemijsku reakciju
- Formiranje di-beta-D-fruktofuranoza 2,6':2',6-dianhidrida (DFA IV) putem sukcesivne eliminacije (2->6)-beta-D-fruktana (levana) sa terminalog D-fruktozil-D-fruktozil disaharida
Ovaj enzim, poput enzima EC 4.2.2.17 i EC 4.2.2.18, eliminiše fruktanski lanac sa terminalnog disaharida čime se formira difruktoza dianhidrid.
Reference
[уреди | уреди извор]- ^ Song, K.B., Bae, K.S., Lee, Y.B., Lee, K.Y. and Rhee, S.K. (2000). „Characteristics of levan fructotransferase from Arthrobacter ureafaciens K2032 and difructose anhydride IV formation from levan”. Enzyme Microb. Technol. 27: 212—218. PMID 10899545.
- ^ Jang, K.H., Ryu, E.J., Park, B.S., Song, K.B., Kang, S.A., Kim, C.H., Uhm, T.B., Park, Y.I. and Rhee, S.K. Levan fructotransferase from Arthrobacter oxydans, J (2003). „17-21 catalyzes the formation of the di-D-fructose dianhydride IV from levan”. J. Agric. Food Chem. 51: 2632—2636. PMID 12696949.
- ^ Saito, K. & Tomita, F. (2000). „Difructose anhydrides: Their mass-production and physiological functions”. Biosci. Biotechnol. Biochem. 64: 1321—1327. PMID 10945246.
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.
Spoljašnje veze
[уреди | уреди извор]- Levan+fructotransferase+(DFA-IV-forming) на US National Library of Medicine Medical Subject Headings (MeSH)
