Glycoside Hydrolase Family 55

Activities in Familyexo-β-1,3-glucanase (EC 3.2.1.58); endo-β-1,3-glucanase (EC 3.2.1.39)
Mechanism Inverting
3D Structure Statusβ-helix
Catalytic Nucleophile/BaseNot known
Catalytic Proton DonorGlu
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME;
Statistics GenBank accession (537); Uniprot accession (131); PDB accession (13); 3D entries (3); cryst (0)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 exo-β-1,3-glucanase (SacteLam55A;SACTE_4363) (Lam55A) 3.2.1.58 Streptomyces sp. SirexAA-E AEN12197.1  
4PEW[A,B] 1.51
4PEX[A,B] β-D-Glcp
1.75
4PEY[A] β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
1.50
4PEZ[A] D-1-deoxy-Glcp
β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
1.90
4PF0[A,B] β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
1.75
4TYV[A,B] β-D-Glcp
1.75
4TZ1[A] β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
1.50
4TZ3[A] D-1-deoxy-Glcp
β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
1.90
4TZ5[A,B] β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp-(1-3)-β-D-Glcp
1.75
Eukaryota
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 exo-β-1,3-glucanase (GluN;CtLam55) 3.2.1.58 Chaetomium thermophilum CT2 ACS66685.1
ACI14529.1
D8UU87
5M5Z[A] 1.25
5M60[A] β-D-Glcp
1.50
 exo-β-1,3-glucanase (PcLam55A) (Lam55A) 3.2.1.58 Phanerochaete chrysosporium K-3 BAE48426.1 Q2Z1W1
3EQN[A,B] 1.70
3EQO[A,B] α-D-Glcp
2.25
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