Glycoside Hydrolase Family 49

Activities in FamilyChaetomorphan endo-β-1,4-(3-sulfo)-arabinanase (EC 3.2.1.-);
Panose α-1,4-glucosidase (EC 3.2.1.-);
Dextranase (EC 3.2.1.11);
Isopullulanase (EC 3.2.1.57);
[inverting] dextran α-1,6-isomaltotriosidase (EC 3.2.1.95);
Mechanism Inverting a
ClanGH-N
3D Structure Statusparallel β-helix
Catalytic Nucleophile/BaseAsp
Catalytic Proton DonorAsp
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME;
Statistics GenBank accession (78); Uniprot accession (12); PDB accession (7); 3D entries (3); cryst (0)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 dextranase (DexKQ; AoDex) 3.2.1.11 Arthrobacter sp. KQ11 / Arthrobacter oxydans KQ11 QDQ17819.1 A0A4V8H044
A0A5J6BCZ4
6NZS[A] 1.40
Eukaryota
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 isopullulanase (IpuA; IPU) 3.2.1.57 Aspergillus brasiliensis ATCC 9642 (formerly Aspergillus niger ATCC 9642) BAA18971.1
BAA19473.1
O00105
1WMR[A,B] 2.40
1X0C[A,B] 1.70
2Z8G[A,B] α-D-Glcp-(1-4)-α-D-Glcp-(1-6)-β-D-Glcp
1.70
3WWG[A,B,C,D] α-D-Glcp-(1-4)-α-D-Glcp
α-D-Glcp-(1-6)-β-D-Glcp
2.20
 dextranase (Dex;DexA) (Dex49A) 3.2.1.11 Talaromyces minioluteus MUCL 38929 (HI-4) AAB47720.1 P48845
1OGM[X] 1.8
1OGO[X] α-D-Glcp-(1-6)-β-D-Glcp
1.65
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