Mechanism	Retaining e
Clan	GH-A
3D Structure Status	( β / α ) 8 barrel
Catalytic Nucleophile/Base	Glu (experimental)
Catalytic Proton Donor	Glu (experimental)
External resources	CAZypedia; PROSITE;
Statistics	GenBank accession (426); Uniprot accession (5); PDB accession (7); 3D entries (2); cryst (1)

Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)	Subf
exo-β-glucosaminidase / exochitosanase (CsxA)	3.2.1.165	Amycolatopsis orientalis	AAX62629.2 AAX62629.1	Q56F26	2VZO[A,B] 2.24 2VZS[A,B] β-D-GlcpN 1.85 2VZT[A,B] β-D-GlcpN-(1-1)-<non_carb> 2.20 2VZU[A,B] β-D-GlcpN-(1-1)-<non_carb> 2.10 2VZV[A,B] β-D-GlcpN-(1-4)-β-D-GlcpN 2.70 2X05[A,B] <carb_like_X05> 2.30 2X09[A,B] <carb_like_X09> 2.40	16
Eukaryota
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)	Subf
exo-β-glucosaminidase (Gls93)	3.2.1.165	Trichoderma reesei PC-3-7	BAD99604.1	Q4R1C4	cryst	16
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