Inulinska fruktotransferaza (DFA-I)
| Inulinska fruktotransferaza (DFA-I) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifikatori | |||||||||
| EC broj | 4.2.2.17 | ||||||||
| CAS broj | 125008-19-7 | ||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB | RCSB PDB PDBe PDBj PDBsum | ||||||||
| |||||||||
Inulinska fruktotransferaza (DFA-I) (EC 4.2.2.17, inulinska fruktotransferaza (formira DFA-I), inulinska fruktotransferaza (depolimerizacija, difruktofuranoza-1,2':2',1-dianhidrid), inulin D-fruktozil-D-fruktoziltransferaza (formira 1,2':1',2-dianhidrid), inulin D-fruktozil-D-fruktoziltransferaza (formira alfa-D-fruktofuranoza beta-D-fruktofuranoza 1,2':1',2-dianhidrid), 2,1-beta-D-fruktan lijaza (formira alfa-D-fruktofuranoza-beta-D-fruktofuranoza-1,2':2,1'-dianhidrid)) je enzim sa sistematskim imenom (2->1)-beta-D-fruktan lijaza (formira alfa-D-fruktofuranoza-beta-D-fruktofuranoza-1,2':2,1'-dianhidrid).[1] Ovaj enzim katalizuje sledeću hemijsku reakciju
- Formiranje alfa-D-fruktofuranoza beta-D-fruktofuranoza 1,2':2,1'-dianhidrida (DFA I) putem sukcesivne eliminacije lanca (2->1)-beta-D-fruktana (inulina) sa terminalnog D-fruktozil-D-fruktozil disaharida
Ovj enzim, poput EC 4.2.2.16 i EC 4.2.2.18, eliminiše fruktanski lanac sa terminalnog disaharida formirajući difruktoza dianhidrid.
Reference[uredi | uredi kod]
- ↑ Seki, K., Haraguchi, K., Kishimoto, M., Kobayashi, S. and Kainuma, K. (1989). „Purification and properties of a novel inulin fructotransferase (DFA I-producing) from Arthrobacter globiformis S14-3”. Agric. Biol. Chem. 53: 2089-2094.
Literatura[uredi | uredi kod]
- 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.
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- Gerhard Michal, Dietmar Schomburg (2012). Biochemical Pathways: An Atlas of Biochemistry and Molecular Biology (2nd izd.). Wiley. ISBN 0470146842.