Mechanism	Retaining e
Clan	GH-B
3D Structure Status	β-jelly roll
Catalytic Nucleophile/Base	Glu (experimental)
Catalytic Proton Donor	Glu (experimental)
Note	Many members have been assigned to subfamilies as described by Viborg et al. (2019) J Biol Chem. 2019 Sep 9 (PMID: 31501245).
External resources	CAZypedia; HOMSTRAD; PRINTS; PROSITE; XTH-World;
Commercial Enzyme Provider(s)	MEGAZYME; NZYTech; PROZOMIX;
Statistics	GenBank accession (1132); Uniprot accession (70); PDB accession (44); 3D entries (22); cryst (1)

Activity Id	EC#	Activity Name	Residue -2	Bond -1	Residue -1	Reacting Bond	Residue +1	Bond +1	Residue +2	Reactant
H5	3.2.1.6	MLG endo-b-1,3/4-glucosidase	bDGlcp	1,3/4	bDGlcp	1,3/4	bDGlcp	1,3/4	bDGlcp	H2O
H29	3.2.1.39	glucan endo-b-1,3-glucosidase	bDGlcp	1,3	bDGlcp	1,3	bDGlcp	1,3	bDGlcp	H2O
H43	3.2.1.58	glucan exo-b-1,3-glucosidase			[bDGlcp	1,3	bDGlcp	1,3	bDGlcp	H2O
H55	3.2.1.73	MLG endo-b-1,4-glucosidase	bDGlcp	1,3/4	bDGlcp	1,4	bDGlcp	1,3/4	bDGlcp	H2O
H80	3.2.1.103	keratan sulfate endo-b-1,4-galactosidase	bDGlcpNAc	1,3	bDGalp	1,4	bDGlcpNAc	1,3	bDGalp	H2O
H176	3.2.1.-	galactan endo-b-1,4-galactosidase	bDGalp	1,4	bDGalp	1,4	bDGalp	1,4	bDGalp	H2O
H192	3.2.1.-	MLG endo-b-1,3-glucosidase	bDGlcp	1,3/4	bDGlcp	1,3	bDGlcp	1,3/4	bDGlcp	H2O
H410	3.2.1.-	MLG endo-b-1,4-glucosidase	bDGlcp	1,3	bDGlcp	1,4	bDGlcp	1,4	bDGlcp	H2O
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