Glycoside Hydrolase Family 91

Activities in Familyinulin lyase [DFA-I-forming] (EC 4.2.2.17); inulin lyase [DFA-III-forming] (EC 4.2.2.18); difructofuranose 1,2':2,3' dianhydride hydrolase [DFA-IIIase] (EC 3.2.1.-)
Mechanism Inverting
3D Structure Statusβ-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 (138); Uniprot accession (20); PDB accession (2); 3D entries (1); cryst (0)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 inulin fructotransferase (DFA III-producing) (Ift) 4.2.2.18 Bacillus sp. snu-7 AAZ66341.1 Q3SAG3
2INU[A,B,C] 1.80
2INV[A,B,C] β-D-Fruf
1.80
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