my-server
← Wiki

Inulin fructotransferase (DFA-III-forming)

The enzyme inulin fructotransferase (DFA-III-forming) () catalyzes the following process:

Produces α-<small>D</small>-fructofuranose β-<small>D</small>-fructofuranose 1,2′:2,3′-dianhydride (DFA III) by successively eliminating the diminishing (2→1)-β-<small>D</small>-fructan (inulin) chain from the terminal <small>D</small>-fructosyl-<small>D</small>-fructosyl disaccharide.

Nomenclature

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→1)-β-<small>D</small>-fructan lyase (α-<small>D</small>-fructofuranose-β-<small>D</small>-fructofuranose-1,2′:2,3′-dianhydride-forming). Other names in common use include inulin fructotransferase (DFA-III-producing), inulin fructotransferase (depolymerizing), inulase II, inulinase II, inulin fructotransferase (depolymerizing, difructofuranose-1,2′:2,3′-dianhydride-forming), inulin <small>D</small>-fructosyl-<small>D</small>-fructosyltransferase, (1,2′:2,3′-dianhydride-forming), inulin <small>D</small>-fructosyl-<small>D</small>-fructosyltransferase (forming, and α-<small>D</small>-fructofuranose β-<small>D</small>-fructofuranose 1,2′:2,3'-dianhydride).

References