inulin fructotransferase (DFA-I-forming) activity

id: GO:0033997
name: inulin fructotransferase (DFA-I-forming) activity
namespace: molecular_function
type: go
obsolete: False

Description: Catalysis of the reaction: [(2->1)-beta-D-fructosyl](n) = [(2->1)-beta-D-fructosyl](n-1) + alpha-D-fructofuranose-beta-D-fructofuranose 1,2':1,2'-dianhydride. This reaction is the production of alpha-D-fructofuranose beta-D-fructofuranose 1,2':2,1'-dianhydride (DFA I) by successively eliminating the diminishing (2->1)-beta-D-fructan (inulin) chain from the terminal D-fructosyl-D-fructosyl disaccharide.

Parent Functions

idname
GO:0016837carbon-oxygen lyase activity, acting on polysaccharides