1BVZ

ALPHA-AMYLASE II (TVAII) FROM THERMOACTINOMYCES VULGARIS R-47

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
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1bvza1	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	d1bvza2	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	d1bvza3	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	d1bvzb1	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	d1bvzb2	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	d1bvzb3	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	Glycosyl hydrolase domain-like	8033454	3001528	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	E set domains	8054927	3000070	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)
B	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8033454	3001528	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	e1bvzA1	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	e1bvzA2	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	e1bvzA3	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	e1bvzB1	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	e1bvzB2	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	e1bvzB3	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	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, B	PF02903	Alpha amylase, N-terminal ig-like domain (Alpha-amylase_N)	Alpha amylase, N-terminal ig-like domain	-	Domain
A, B	PF16657	Maltogenic Amylase, C-terminal domain (Malt_amylase_C)	Maltogenic Amylase, C-terminal domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PROTEIN (ALPHA-AMYLASE II)	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 organic substance metabolic process primary metabolic process metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR006047	Glycosyl hydrolase, family 13, catalytic domain	Domain
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	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A, B	IPR013780	Glycosyl hydrolase, all-beta	Homologous Superfamily
A, B	IPR032091	Maltogenic Amylase, C-terminal	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	neopullulanase M-CSA #433	Neopullulanase is a member of the glycoside hydrolase family 13 (GH13) and is one of the family enzymes with a unique substrate specificity that hydrolyses pullulan to produce panose, maltose and glucose in a final molar ratio of 3:1:1. This enzyme hydrolyses alpha-1,4 and alpha-1,6-glucosidic linkages, and catalyses transglycosylation reactions to form both alpha-1,4 and alpha-1,6-glucosidic bonds. Neopullulanase (EC 3.2.1.135) is a special glycoside hydrolase that is able to catalyse several biochemical reactions, such as the hydrolysis of both alpha-1,4- and alpha-1,6-glucosidic linkages and their formation by transglycosylation. Neopullulanase is, in fact, nearly indistinguishable from the two closely related enzyme specificities, maltogenic amylase (EC 3.2.1.133) and cyclomaltodextrinase (EC 3.2.1.54). The three groups of enzymes contain ∼130 residues at the N terminus that are absent in the smaller alpha-amylases. They are known to bind Ca, but it is remote from the active site and not involved in the mechanism.	Defined by 3 residues: ASP:A-325GLU:A-354ASP:A-421 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.2.1.135 (PDB Primary Data) Search M-CSA Motif + EC 3.2.1.135

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.