Glycoside Hydrolase Family 91

Activities in FamilyDi-fructofuranose 1,2':2,3' dianhydride hydrolase (DFA IIIase) (EC 3.2.1.-);
Inulin 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 (676); Uniprot accession (11); PDB accession (11); 3D entries (3); cryst (0)
Bacteria
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D
 di-fructofuranose 1,2':2,3' dianhydride hydrolase (DFA IIIase) 3.2.1.- pubmed
Arthrobacter sp. H65-7 BAD06469.1 Q76KU1  
 α-D-fructofuranose-β-D-fructofuranose 2′,1:2,3′-dianhydride hydrolase (AcDFA-IIIase; Achl_2895) 3.2.1.- doi
Pseudarthrobacter chlorophenolicus A6 ACL40859.1 B8HDZ1 5ZKS[A]
5ZKU[A,B,C,D,E,F]
5ZKW[A,B,C,D,E,F]
5ZKY[A]
5ZL4[A]
5ZL5[A,B,C,D,E,F]
5ZLA[A,B,C,D,E,F]
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