3R2T | pdb_00003r2t

2.2 Angstrom Resolution Crystal Structure of Superantigen-like Protein from Staphylococcus aureus subsp. aureus NCTC 8325.

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
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)
B	d3r2tb1	All beta proteins	OB-fold	Bacterial enterotoxins	automated matches	automated matches	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
B	d3r2tb2	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Superantigen toxins, C-terminal domain	automated matches	automated matches	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
A	d3r2ta1	All beta proteins	OB-fold	Bacterial enterotoxins	automated matches	automated matches	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
A	d3r2ta2	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Superantigen toxins, C-terminal domain	automated matches	automated matches	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Pkinase,Pkinase_C	e3r2tB1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Pkinase,Pkinase_C	ECOD (v294.1)
A	Ras	e3r2tA1	A: a/b three-layered sandwiches	X: N-terminal beta-sandwich domain in anthrax protective antigen	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Ras	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.10.20.120	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
B	2.40.50.110	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)
A	3.10.20.120	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
A	2.40.50.110	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF09199	Staphylococcal superantigen-like OB-fold domain (SSL_OB)	Staphylococcal superantigen-like OB-fold domain	This OB-fold domain folds into a five-stranded beta-barrel [1]. Members of this family are found in various staphylococcal toxins described as staphylococcal superantigen-like (SSL) proteins that are related to the staphylococcal enterotoxins (SEs) o ...	This OB-fold domain folds into a five-stranded beta-barrel [1]. Members of this family are found in various staphylococcal toxins described as staphylococcal superantigen-like (SSL) proteins that are related to the staphylococcal enterotoxins (SEs) or superantigens. These SSL proteins of which 11 have so far been characterised have a typical SE tertiary structure consisting of a distinct oligonucleotide/oligosaccharide binding (OB-fold), this domain, linked to a beta-grasp domain, family Stap_Strp_tox_C, Pfam:PF02876. SSLs do not bind to T-cell receptors or major histocompatibility complex class II molecules and do not stimulate T cells. SSLs target components of innate immunity, such as complement, Fc receptors, and myeloid cells 2,3,4,5,6,7,8]. SSL protein 7 (SSL7) is the best characterised of the SSLs and binds complement factor C5 and IgA with high affinity and inhibits the end stage of complement activation and IgA binding to FcalphaR [8].	Domain
A, B	PF02876	Staphylococcal/Streptococcal toxin, beta-grasp domain (Stap_Strp_tox_C)	Staphylococcal/Streptococcal toxin, beta-grasp domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Putative uncharacterized protein	-	-	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR006123	Staphylococcal/Streptococcal toxin, beta-grasp domain	Domain
A, B	IPR006126	Staphylococcal enterotoxin/Streptococcal pyrogenic exotoxin, conserved site	Conserved Site
A, B	IPR016091	Superantigen toxin, C-terminal	Homologous Superfamily
A, B	IPR008375	Staphylococcus aureus exotoxin	Family
A, B	IPR013307	Superantigen, staphylococcal/streptococcal toxin, bacterial	Family
A, B	IPR008992	Enterotoxin	Homologous Superfamily
A, B	IPR015282	Staphylococcal superantigen-like OB-fold domain	Domain

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.