Mechanism	Retaining a
Clan	GH-H
3D Structure Status	( β / α ) 8 barrel
Catalytic Nucleophile/Base	Asp (experimental)
Catalytic Proton Donor	Glu (experimental)
Note	New: many members have been assigned to subfamilies as described by Stam et al. (2006) Protein Eng Des Sel. 19, 555-562 (PMID: 17085431)
External resources	CAZypedia; EBI Protein of the Month; HOMSTRAD; PDB Molecule of the Month; PRINTS;
Commercial Enzyme Provider(s)	MEGAZYME; PROZOMIX;
Statistics	GenBank accession (2); Uniprot accession (39); PDB accession (50); 3D entries (14); cryst (0)

Activity Id	EC#	Activity Name	Residue -2	Bond -1	Residue -1	Reacting Bond	Residue +1	Bond +1	Residue +2	Reactant
H1	3.2.1.1	amylose endo-a-1,4-glucosidase	aDGlcp	1,4	aDGlcp	1,4	aDGlcp	1,4	aDGlcp	H2O
H3	3.2.1.3	amylose exo-a-1,4-glucosidase			[aDGlcp	1,4	aDGlcp	1,4	aDGlcp	H2O
H8	3.2.1.10	oligo exo-a-1,6-glucosidase			[aDGlcp	1,6	aDGlcp	1,X	aDGlcp	H2O
H14	3.2.1.20	a-glucosidase			[aDGlcp	1,X	alcohol			H2O
H52	3.2.1.70	dextran exo-a-1,6-glucosidase			[aDGlcp	1,6	aDGlcp	1,6	aDGlcp	H2O
H191	3.2.1.-	palatin a-1,6-glucosidase			[aDGlcp	1,6	DFruf]			H2O
T318	2.4.1.161	oligosaccharide 4-a-D-glucosyltransferase			[aDGlcp	1,4	aDGlcp	1,4	aDGlcp	a-1,4-aDGlcp
T342	2.4.1.-	sucrose a-transglucosidase			[aDGlcp	1,X	alcohol			a-1,2-bDFruf]
M348	5.4.99.11	isomaltulose synthase			[aDGlcp	1,6	DFucf]			a-1,2-DFucf]
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