Glycoside Hydrolase Family 123 / Subf 1

Mechanism Retaining e
3D Structure Status( β / α ) 8 barrel
Catalytic Nucleophile/Basecarbonyl oxygen of C-2 acetamido group of substrate
Catalytic Proton DonorGlu
NoteCreated after (Sumida et al., 2011) [PMID: 21297160]. Subfamilies established according to both (Moreno Prieto et al., 2024) [PMID:38129294] and (Sumida et al., 2024) [PMID:38730244]. In the latter, group 1 is GH123_4; group 2 is GH123_5; group 3 is GH123_3; group 4 is GH123_2 and group GH123 is GH123_1.
External resourcesCAZypedia;
Statistics GenBank accession (920); Uniprot accession (4); PDB accession (8); 3D entries (2); cryst (0)
Bacteria
Protein Name EC# OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
Subf
 glycolipid exo-β-N-acetylgalactosaminidase (CpNga123; CPF_1473) 3.2.1.53
3.2.1.-
Clostridium perfringens ATCC 13124 ABG82546.1 A0A0H2YNR7
5FQE[A,B] 1.53
5FQF[A,B] β-D-GalpNAc
2.15
5FQG[A] β-D-GalpNAc-(1-3)-β-D-Galp
2.30
5FQH[A] β-D-GalpNAc-(1-4)-β-D-Galp-(1-4)-β-D-Glcp
2.10
5FR0[A] <non_carb>-(1-2)-β-D-GalpN
1.75
1
 N-acetyl-β-galactosaminidase / β-N-acetylgalactosaminidase (BvGH123; BVU_2198) 3.2.1.53 Phocaeicola vulgatus ATCC 8482 ABR39859.1 A6L2E5
5L7R[A,B] 1.85
5L7U[A,B] β-D-GalpNAc
2.10
5L7V[A,B] D-1,2-deoxy-Galp
2.30
1
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