EC 4.2.2.17 and EC 4.2.2.18
Inulin Fructotransferase
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© IUBMB 2004
In the product of EC 4.2.2.17, O-1 of the (ω)th residue replaces O-1 of the (ω-2)th residue at C-2 of the (ω-1)th residue giving the α-anomer. Similarly, in the product of EC 4.2.2.18, O-3 of the (ω)th residue replaces O-1 of the (ω-2)th residue at C-2 of the (ω-1)th residue giving the α-anomer. The (ω)th residue is the terminal residue furthest from the reducing end.
Click here for explanation of carbohydrate dianhydride nomenclature (2-Carb-27).
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EC 4.2.2.17 inulin fructotransferase (DFA-I-forming)
EC 4.2.2.18 inulin fructotransferase (DFA-III-forming)