Annotations: 1KTB

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ktba1	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	alpha-Amylases, C-terminal beta-sheet domain	Melibiase	chicken (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
A	d1ktba2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	Amylase, catalytic domain	Melibiase	chicken (Gallus gallus ) [TaxId: 9031 ],	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	8028270	4002636	SCOP2 (2022-06-29)
A	SCOP2 Family	Amylase, catalytic domain	8028271	4003138	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Glycosyl hydrolase domain-like	8040649	3001528	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	(Trans)glycosidases	8040650	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	Melibiase_2_C_1	e1ktbA1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Glycosyl hydrolase domain (From Topology)	T: Glycosyl hydrolase domain	F: Melibiase_2_C_1	ECOD (1.6)
A	Glyco_hydro_31_N	e1ktbA2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Glyco_hydro_31_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	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	PF17450	Alpha galactosidase A C-terminal beta sandwich domain (Melibiase_2_C)	Alpha galactosidase A C-terminal beta sandwich domain	-	Domain
A	PF16499	Alpha galactosidase A (Melibiase_2)	Alpha galactosidase A	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	alpha-N-acetylgalactosaminidase	alpha-galactosidase activity hydrolase activity, acting on glycosyl bonds hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity galactosidase activity hexosaminidase activity alpha-N-acetylgalactosaminidase activity	carbohydrate metabolic process oligosaccharide metabolic process primary metabolic process metabolic process glycoside catabolic process carbohydrate derivative catabolic process glycosyl compound metabolic process catabolic process glycoside metabolic process carbohydrate derivative metabolic process glycosyl compound catabolic process lipid metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity membrane-bounded organelle intracellular organelle organelle lytic vacuole vacuole intracellular membrane-bounded organelle lysosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002241	Glycoside hydrolase, family 27	Family
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily
A	IPR000111	Glycoside hydrolase family 27/36, conserved site	Conserved Site
A	IPR035373	Alpha galactosidase A, C-terminal beta-sandwich 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.