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Term Information

Accession
GO:0033996
Name
levan fructotransferase (DFA-IV-forming) activity
Ontology
molecular_function
Synonyms
2,6-beta-D-fructan D-fructosyl-D-fructosyltransferase (forming di-beta-D-fructofuranose 2,6':2',6-dianhydride) activity, 2,6-beta-D-fructan lyase (di-beta-D-fructofuranose-2,6':2',6-dianhydride-forming) activity, levan fructotransferase activity
Alternate IDs
None
Definition
Catalysis of the reaction: beta-D-fructopyranosyl-(2->6)-[D-fructofuranosyl-(2->6)]n-D-fructofuranoside = beta-D-fructopyranosyl-(2->6)-[D-fructofuranosyl-(2->6)](n-1)-D-fructofuranoside + di-beta-D-fructofuranose 2,6':2',6-dianhydride. This reaction is the production of di-beta-D-fructofuranose 2,6':2',6-dianhydride (DFA IV) by successively eliminating the diminishing (2->6)-beta-D-fructan (levan) chain from the terminal D-fructosyl-D-fructosyl disaccharide. Source: EC:4.2.2.16
Comment
None
History
See term history for GO:0033996 at QuickGO
Subset
None
Feedback
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Graph of GO:0033996

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Parents of levan fructotransferase (DFA-IV-forming) activity (GO:0033996)
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levan fructotransferase (DFA-IV-forming) activity [is_a relation] is_a  carbon-oxygen lyase activity, acting on polysaccharides (GO:0016837)

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EC
4.2.2.16
MetaCyc
4.2.2.16-RXN