4CUA

Unravelling the multiple functions of the architecturally intricate Streptococcus pneumoniae beta-galactosidase, BgaA

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF21606	e4cuaA1	A: beta sandwiches	X: jelly-roll	H: Galactose-binding domain-like (From Topology)	T: Galactose-binding domain-like	F: PF21606	ECOD (1.6)
B	PF21606	e4cuaB1	A: beta sandwiches	X: jelly-roll	H: Galactose-binding domain-like (From Topology)	T: Galactose-binding domain-like	F: PF21606	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)
B	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF21606	Beta-galactosidase-like, Galactose-binding domain (BgaA-like_CBM)	Beta-galactosidase-like, Galactose-binding domain	This domain is found in Beta-galactosidase from Streptococcus pneumoniae (BgaA) and similar bacterial sequences. BgaA is specific for terminal galactose residues beta-1-4 linked to glucose or N-acetylglucosamine. It is involved in pneumococcal growth ...	This domain is found in Beta-galactosidase from Streptococcus pneumoniae (BgaA) and similar bacterial sequences. BgaA is specific for terminal galactose residues beta-1-4 linked to glucose or N-acetylglucosamine. It is involved in pneumococcal growth, resistance to opsonophagocytic killing, and adherence. This entry represents two non-enzymatic carbohydrate-binding modules (CBMs) that mediate adherence to the host cell surface displayed lactose or N-acetyllactosamine. Each of these CBMs folds into a beta-sandwich fold comprising opposing sheets of 4- and 5-antiparallel beta-strands [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	BETA-GALACTOSIDASE	hydrolase activity, acting on glycosyl bonds beta-galactosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity galactosidase 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	IPR032311	Domain of unknown function DUF4982	Domain
A, B	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A, B	IPR006101	Glycoside hydrolase, family 2	Family
A, B	IPR040605	Glycoside hydrolase family 2, domain 5	Domain
A, B	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
A, B	IPR006102	Glycoside hydrolase, family 2, immunoglobulin-like beta-sandwich	Domain
A, B	IPR036156	Beta-Galactosidase/glucuronidase domain superfamily	Homologous Superfamily
A, B	IPR006104	Glycosyl hydrolases family 2, sugar binding domain	Domain
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR005877	YSIRK Gram-positive signal peptide	Domain
A, B	IPR011098	G5 domain	Domain
A, B	IPR006103	Glycoside hydrolase family 2, catalytic domain	Domain
A, B	IPR049487	Beta-galactosidase-like, galactose-binding domain	Domain
A, B	IPR011081	Bacterial Ig-like domain	Domain
A, B	IPR019931	LPXTG cell wall anchor domain	Domain

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.