4.2.2.18: inulin fructotransferase (DFA-III-forming)
This is an abbreviated version!
For detailed information about inulin fructotransferase (DFA-III-forming), go to the full flat file.
Word Map on EC 4.2.2.18
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4.2.2.18
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arthrobacter
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2.4.1.93
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difructose
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globiformis
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synthesis
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sweet
-
smallest
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fructooligosaccharides
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low-calorie
-
oligosaccharide
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1-kestose
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disaccharide
-
chitopearl
-
aurescens
-
deae-toyopearl
-
inulobiose
-
broth
-
sweetener
-
biotechnology
-
raffinose
-
super
-
levans
- 4.2.2.18
- arthrobacter
-
2.4.1.93
- difructose
- globiformis
- synthesis
-
sweet
-
smallest
- fructooligosaccharides
-
low-calorie
- oligosaccharide
- 1-kestose
- disaccharide
-
chitopearl
- aurescens
-
deae-toyopearl
- inulobiose
- broth
-
sweetener
- biotechnology
- raffinose
-
super
- levans
Reaction
Synonyms
Achl_2902, BsIFTase, di-D-fructofuranose 1,2': 2,3' dianhydride [DFA III]-producing IFTase, EC 2.4.1.93, fructotransferase, inulin (depolymerizing), IFTase, IFTase (DFA III-producing), IFTaseIII, inulase II, inulin D-fructosyl-D-fructosyltransferase (1,2':2,3'-dianhydride-forming), inulin fructotransferase (depolymerizing), inulin fructotransferase (depolymerizing, difructofuranose-1,2':2,3'-dianhydride-forming), inulin fructotransferase (DFA III-producing), inulin fructotransferase (DFA-III-producing), inulin fructotransferase (DFAIII-producing), inulinase II
ECTree
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Systematic Name
Systematic Name on EC 4.2.2.18 - inulin fructotransferase (DFA-III-forming)
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(2->1)-beta-D-fructan lyase (alpha-D-fructofuranose-beta-D-fructofuranose-1,2':2,3'-dianhydride-forming)
This enzyme, like EC 4.2.2.16 [levan fructotransferase (DFA-IV-forming)] and EC 4.2.2.17 [inulin fructotransferase (DFA-I-forming)] eliminates the fructan chain from the terminal disaccharide leaving a difructose dianhydride. These enzymes have long been known as fructotransferases, so this is retained in the accepted name. Since the transfer is intramolecular, the reaction is an elimination and, hence, the enzyme is a lyase, belonging in EC 4.