Mechanism	Retaining e
Clan	GH-A
3D Structure Status	( β / α ) 8 barrel
Catalytic Nucleophile/Base	Glu (experimental)
Catalytic Proton Donor	Glu (experimental)
Note	Identification of the catalytic residues in doi:10.1016/j.febslet.2007.04.053
External resources	CAZypedia;
Statistics	GenBank accession (11511); Uniprot accession (82); PDB accession (21); 3D entries (12); cryst (1)

Activity Id	EC#	Activity Name	Residue -2	Bond -1	Residue -1	Reacting Bond	Residue +1	Bond +1	Residue +2	Reactant
H17	3.2.1.23	b-galactosidase			[bDGalp	1,X	alcohol			H2O
H187	3.2.1.-	antigen exo-b-1,3-galactosidase			[bDGalp	1,3	DGlcpNAc			H2O
H198	3.2.1.-	a-L-arabinopyranosidase			[aLArap	1,X	alcohol			H2O
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