3A47 | pdb_00003a47

Crystal structure of isomaltase from Saccharomyces cerevisiae

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8101014	3001528	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	(Trans)glycosidases	8098744	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		e3a47A3	A: Fusion glycoprotein F2	X: Fusion glycoprotein F2	H: Fusion glycoprotein F2	T: Alpha-amylase	F:	ECOD (20:10:01)

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	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)

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Oligo-1,6-glucosidase	alpha-glucosidase activity hydrolase activity, acting on glycosyl bonds glucosidase activity beta-fructofuranosidase activity sucrose alpha-glucosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity glucan 1,4-alpha-maltotriohydrolase activity alpha-1,4-glucosidase activity oligo-1,6-glucosidase activity amylase activity alpha-amylase activity	carbohydrate metabolic process catabolic process oligosaccharide catabolic process oligosaccharide metabolic process carbohydrate catabolic process primary metabolic process metabolic process cellular process disaccharide metabolic process disaccharide catabolic process maltose catabolic process maltose metabolic process sucrose catabolic process sucrose metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR045857	Oligo-1,6-glucosidase, domain 2	Homologous Superfamily
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR006047	Glycosyl hydrolase family 13, catalytic domain	Domain
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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.