Inulinska fruktotransferaza (DFA-I)
Inulinska fruktotransferaza (DFA-I) | |||||||||
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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 | ||||||||
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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.
- ↑ 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.
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