ID 4.2.1.178 DE difructose-dianhydride-III synthase. AN DFA-IIIase. AN difructose anhydride III hydrolase. CA inulobiose = alpha-D-fructofuranose-beta-D-fructofuranose CA 2',1:2,3'-dianhydride + H2O. CC -!- The enzyme participates in an inulin degradation pathway, in which it CC forms inulobiose from difructose anhydride III. CC -!- A conformational change in the enzyme from the bacterium CC Pseudarthrobacter chlorophenolicus results in it also catalyzing the CC activity of EC 4.2.2.18. //