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Information on EC 4.2.2.18 - inulin fructotransferase (DFA-III-forming)

for references in articles please use BRENDA:EC4.2.2.18

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IUBMB Comments

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.

The expected taxonomic range for this enzyme is: Bacteria, Eukaryota

Synonyms
inulin fructotransferase (dfa iii-producing), inulase ii, iftase (dfa iii-producing), inulinase ii, inulin fructotransferase (depolymerizing), inulin fructotransferase (dfaiii-producing), more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
[inulin]n = [inulin]n-2 + alpha-D-fructofuranose beta-D-fructofuranose 1,2':2,3'-dianhydride
show the reaction diagram
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PATHWAY SOURCE
PATHWAYS
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