2GUY | pdb_00002guy

Orthorhombic crystal structure (space group P21212) of Aspergillus niger alpha-amylase at 1.6 A resolution

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2guya1	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	alpha-Amylases, C-terminal beta-sheet domain	Fungal alpha-amylase	(Aspergillus oryzae ) [TaxId: 5062 ],	SCOPe (2.08)
A	d2guya2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	Amylase, catalytic domain	Fungal alpha-amylases	(Aspergillus oryzae ) [TaxId: 5062 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	alpha-Amylases, C-terminal beta-sheet domain	8029700	4002636	SCOP2 (2022-06-29)
A	SCOP2 Family	Amylase, catalytic domain	8029701	4003138	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Glycosyl hydrolase domain-like	8042079	3001528	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	(Trans)glycosidases	8042080	3000313	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DUF1966	e2guyA1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Glycosyl hydrolase domain (From Topology)	T: Glycosyl hydrolase domain	F: DUF1966	ECOD (1.6)
A	Alpha-amylase	e2guyA2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Alpha-amylase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)
A	2.60.40.1180	Mainly Beta	Sandwich	Immunoglobulin-like	Golgi alpha-mannosidase II	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00128	Alpha amylase, catalytic domain (Alpha-amylase)	Alpha amylase, catalytic domain	Alpha amylase is classified as family 13 of the glycosyl hydrolases. The structure is an 8 stranded alpha/beta barrel containing the active site, interrupted by a ~70 a.a. calcium-binding domain protruding between beta strand 3 and alpha helix 3, a ...	Alpha amylase is classified as family 13 of the glycosyl hydrolases. The structure is an 8 stranded alpha/beta barrel containing the active site, interrupted by a ~70 a.a. calcium-binding domain protruding between beta strand 3 and alpha helix 3, and a carboxyl-terminal Greek key beta-barrel domain.	Domain
A	PF09260	Alpha-amylase, domain C (A_amylase_dom_C)	Alpha-amylase, domain C	This domain is found at the C-terminal of various fungal alpha-amylase proteins [1]. It has been identified as a secondary binding site, which might be part of a starch interaction site [2]. It has a beta- sandwich fold comprising an antiparallel bet ...	This domain is found at the C-terminal of various fungal alpha-amylase proteins [1]. It has been identified as a secondary binding site, which might be part of a starch interaction site [2]. It has a beta- sandwich fold comprising an antiparallel beta-sheet with eight strands [2,3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Alpha-amylase A	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding hydrolase activity, acting on glycosyl bonds amylase activity alpha-amylase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity	carbohydrate metabolic process catabolic process carbohydrate catabolic process primary metabolic process metabolic process cellular process	fungal-type cell wall cell periphery cellular anatomical structure external encapsulating structure cell wall extracellular region cell septum intracellular organelle septin band intracellular anatomical structure cytoskeleton organelle septin cytoskeleton membraneless organelle fungal-type cell wall cell periphery cellular anatomical structure external encapsulating structure cell wall extracellular region cell septum intracellular organelle septin band intracellular anatomical structure cytoskeleton organelle septin cytoskeleton membraneless organelle intracellular membraneless organelle hyphal septin band protein-containing complex cell tip cell pole spitzenkorper endomembrane system hyphal tip site of polarized growth cell wall-bounded periplasmic space periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR015340	Alpha-amylase, domain C	Domain
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR013777	Alpha-amylase-like	Family
A	IPR006047	Glycosyl hydrolase family 13, catalytic domain	Domain
A	IPR006046	Alpha amylase	Family
A	IPR013780	Glycosyl hydrolase, all-beta	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.