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; PDB Molecule of the Month;
Statistics	GenBank accession (339); Uniprot accession (19); PDB accession (4); 3D entries (2); cryst (0)

Archaea
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)	Subf
α-amylase (thermostable)		Pyrococcus woesei			3QGV[A] α-D-Glcp-(1-2)-β-D-Fruf b-cyclodextrin 2.10	7
α-amylase (AmyA)	3.2.1.1	Pyrococcus woesei	AAD54338.1 AAF44693.1 ACH26211.1	Q7LYT7 Q9P9L0	1MWO[A] 2.20 1MXD[A] α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp α-D-Glcp <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp 2.00 1MXG[A] α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp <non_carb>-(1-4)-α-D-6-deoxy-Glcp4N-(1-4)-α-D-Glcp-(1-4)-α-D-Glcp 1.60	7
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