Activities in Sub Family	[retaining] α-amylase (EC 3.2.1.1); [retaining] maltotriose-producing α-amylase (EC 3.2.1.116);
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 (440); Uniprot accession (26); PDB accession (11); 3D entries (1); cryst (0)

Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)	Subf
α-amylase (Amy;AHA)	3.2.1.1	Pseudoalteromonas haloplanktis TAB23 / A23	CAA41481.1	P29957	1AQH[A] 2.00 1AQM[A] 1.85 1B0I[A] 2.40 1G94[A] <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp 1.74 1G9H[A] <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-β-D-Glcp 1.80 1JD7[A] 2.25 1JD9[A] 2.50 1KXH[A] <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-β-D-Glcp 2.30 1L0P[A] 2.10 8CQF[A] <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-D-1-deoxy-Glcp <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp α-D-Glcp-(1-4)-α-D-Glcp-(1-4)-<non_carb>-(0-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp 2.05 8CQG[A] 1.74	32
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