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Levan fructotransferase (DFA-IV-forming)

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Levan fructotransferase (DFA-IV-forming)
Identifiers
EC no.4.2.2.16
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The enzyme levan fructotransferase (DFA-IV-forming) (EC 4.2.2.16) catalyzes the following process:

Produces di-β-D-fructofuranose 2,6′:2′,6-dianhydride (DFA IV) by successively eliminating the diminishing (2→6)-β-D-fructan (levan) chain from the terminal D-fructosyl-D-fructosyl disaccharide

This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on polysaccharides. The systematic name of this enzyme class is 2→6-β-D-fructan lyase (di-β-D-fructofuranose-2,6′:2′,6-dianhydride-forming).

Other names in common use include 2,6-β-D-fructan D-fructosyl-D-fructosyltransferase (forming, di-β-Dfructofuranose 2,6′:2′,6-dianhydride), and levan fructotransferase.

References

Carbon–oxygen lyases (EC 4.2) (primarily dehydratases)
4.2.1: Hydro-Lyases
4.2.2: Acting on polysaccharides
4.2.3: Acting on phosphates
4.2.99: Other
Enzymes
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