2D3L

Crystal structure of maltohexaose-producing amylase from Bacillus sp.707 complexed with maltopentaose.

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	d2d3la1	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	alpha-Amylases, C-terminal beta-sheet domain	Bacterial alpha-Amylase	(Bacillus sp. 707 ) [TaxId: 1416 ],	SCOPe (2.08)
A	d2d3la2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	Amylase, catalytic domain	Bacterial alpha-amylase	(Bacillus sp. 707 ) [TaxId: 1416 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8039542	3001528	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	(Trans)glycosidases	8039543	3000313	SCOP2B (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	DUF1939	e2d3lA1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Glycosyl hydrolase domain (From Topology)	T: Glycosyl hydrolase domain	F: DUF1939	ECOD (1.6)
A	Alpha-amylase	e2d3lA2	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	2.40.30.140	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	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	PF09154	Alpha-amylase C-terminal (Alpha-amy_C_pro)	Alpha-amylase C-terminal	This entry represents a C-terminal domain associated with prokaryotic alpha-amylases, which adopt a secondary structure consisting of an eight-stranded antiparallel beta-sheet containing a Greek key motif. Their exact function has not, as yet, been d ...	This entry represents a C-terminal domain associated with prokaryotic alpha-amylases, which adopt a secondary structure consisting of an eight-stranded antiparallel beta-sheet containing a Greek key motif. Their exact function has not, as yet, been determined [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Glucan 1,4-alpha-maltohexaosidase	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 glucan 1,4-alpha-maltohexaosidase activity	carbohydrate metabolic process catabolic process glucan catabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process polysaccharide metabolic process glucan metabolic process starch metabolic process polysaccharide catabolic process starch catabolic process metabolic process macromolecule metabolic process	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR015237	Alpha-amylase C-terminal, prokaryotic	Domain
A	IPR006047	Glycosyl hydrolase, family 13, catalytic domain	Domain
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR006046	Alpha amylase	Family
A	IPR013780	Glycosyl hydrolase, all-beta	Homologous Superfamily
A	IPR013776	Alpha-amylase, thermostable	Family

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.