Glycoside Hydrolase Family 91

Activities in FamilyInulin fructotransferase (DFA-I-forming) (EC 4.2.2.17);
Inulin fructotransferase (DFA-III-forming) (EC 4.2.2.18);
Mechanism Inverting a
3D Structure Statusparallel β-helix
NoteWas temporarily changed into PL19 until it was recently realized that these "PLs" are analogous to GH23 SLTs/lysozymes (there is at least one hydrolase in the GH91 family) and therefore are better classified in the GH category. See CAZypedia (below) for more.
External resourcesCAZypedia;
Statistics GenBank accession (752); Uniprot accession (12); PDB accession (15); 3D entries (4); cryst (0)
Activity IdEC#Activity NameResidue -2Bond -1Residue -1 Reacting BondResidue +1Bond +1Residue +2Reactant
H194 3.2.1.- dianhydride (1,2':2,3') fructofuranose b-2,3-fructosidase [bDFruf 2,3 bDFruf] H2O
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