2D2O | pdb_00002d2o

Structure of a complex of Thermoactinomyces vulgaris R-47 alpha-amylase 2 with maltohexaose demonstrates the important role of aromatic residues at the reducing end of the substrate binding cleft

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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	d2d2oa1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	E-set domains of sugar-utilizing enzymes	Maltogenic amylase, N-terminal domain N	(Thermoactinomyces vulgaris ) [TaxId: 2026 ],	SCOPe (2.08)
A	d2d2oa2	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	alpha-Amylases, C-terminal beta-sheet domain	Maltogenic amylase	(Thermoactinomyces vulgaris ) [TaxId: 2026 ],	SCOPe (2.08)
A	d2d2oa3	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	Amylase, catalytic domain	Maltogenic amylase, central domain	(Thermoactinomyces vulgaris ) [TaxId: 2026 ],	SCOPe (2.08)
B	d2d2ob1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	E-set domains of sugar-utilizing enzymes	Maltogenic amylase, N-terminal domain N	(Thermoactinomyces vulgaris ) [TaxId: 2026 ],	SCOPe (2.08)
B	d2d2ob2	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	alpha-Amylases, C-terminal beta-sheet domain	Maltogenic amylase	(Thermoactinomyces vulgaris ) [TaxId: 2026 ],	SCOPe (2.08)
B	d2d2ob3	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	Amylase, catalytic domain	Maltogenic amylase, central domain	(Thermoactinomyces vulgaris ) [TaxId: 2026 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	(Trans)glycosidases	8033456	3000313	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	E set domains	8054927	3000070	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8033454	3001528	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8033454	3001528	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	(Trans)glycosidases	8033456	3000313	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	E set domains	8054927	3000070	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	Alpha-amylase_N	e2d2oA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Alpha-amylase_N	ECOD (1.6)
A	Cyc-maltodext_C	e2d2oA2	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Glycosyl hydrolase domain (From Topology)	T: Glycosyl hydrolase domain	F: Cyc-maltodext_C	ECOD (1.6)
A	Alpha-amylase	e2d2oA3	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Alpha-amylase	ECOD (1.6)
B	Alpha-amylase_N	e2d2oB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Alpha-amylase_N	ECOD (1.6)
B	Cyc-maltodext_C	e2d2oB2	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Glycosyl hydrolase domain (From Topology)	T: Glycosyl hydrolase domain	F: Cyc-maltodext_C	ECOD (1.6)
B	Alpha-amylase	e2d2oB3	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	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)
A	3.90.400.10	Alpha Beta	Alpha-Beta Complex	Oligo-1,6-glucosidase	domain 2	CATH (4.3.0)
A	2.60.40.1180	Mainly Beta	Sandwich	Immunoglobulin-like	Golgi alpha-mannosidase II	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)
B	3.90.400.10	Alpha Beta	Alpha-Beta Complex	Oligo-1,6-glucosidase	domain 2	CATH (4.3.0)
B	2.60.40.1180	Mainly Beta	Sandwich	Immunoglobulin-like	Golgi alpha-mannosidase II	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Neopullulanase 2	hydrolase activity, acting on glycosyl bonds hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity neopullulanase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	carbohydrate metabolic process primary metabolic process metabolic process cellular process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR045857	Oligo-1,6-glucosidase, domain 2	Homologous Superfamily
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A, B	IPR004185	Glycoside hydrolase, family 13, N-terminal Ig-like domain	Domain
A, B	IPR032091	Maltogenic amylase-like, C-terminal	Domain
A, B	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A, B	IPR006047	Glycosyl hydrolase family 13, catalytic domain	Domain
A, B	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.