Levanska fruktotransferaza (DFA-IV)
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
| Levanska fruktotransferaza (DFA-IV) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifikatori | |||||||||
| EC broj | 4.2.2.16 | ||||||||
| CAS broj | 88593-15-1 | ||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB | RCSB PDB PDBe PDBj PDBsum | ||||||||
| |||||||||
- 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 uredi
- ↑ 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. and Tomita, F. (2000). „Difructose anhydrides: Their mass-production and physiological functions”. Biosci. Biotechnol. Biochem. 64: 1321-1327. PMID 10945246.
Literatura uredi
- 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.
- Robert A. Copeland (2013). Evaluation of Enzyme Inhibitors in Drug Discovery: A Guide for Medicinal Chemists and Pharmacologists (2nd izd.). Wiley-Interscience. ISBN 111848813X.
- Gerhard Michal, Dietmar Schomburg (2012). Biochemical Pathways: An Atlas of Biochemistry and Molecular Biology (2nd izd.). Wiley. ISBN 0470146842.