Annotations: 8A49

Endoglycosidase S in complex with IgG1 Fc

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)
C [auth D]	Peptidase_A21	e8a49D1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_A21	ECOD (v295.2)
B [auth C]	Peptidase_A21	e8a49C1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_A21	ECOD (v295.2)
D [auth B]	Peptidase_A21	e8a49B1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_A21	ECOD (v295.2)
A	Peptidase_A21	e8a49A1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_A21	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth D]	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (utative)
B [auth C]	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth C], C [auth D]	PF23952	Endo-beta-N-acetylglucosaminidase EndoS LRR domain (LRR_EndoS)	Endo-beta-N-acetylglucosaminidase EndoS LRR domain	-	Repeat
B [auth C], C [auth D]	PF20746	Endo-beta-N-acetylglucosaminidase F2, Ig-like domain (EndoS_Ig-like)	Endo-beta-N-acetylglucosaminidase F2, Ig-like domain	This domain is found in Endo-beta-N-acetylglucosaminidase F2 (EndoS) from Streptococcus pyogenes (Swiss:Q48RM3) and similar sequences predominantly found in Firmicutes. EndoS is an immunomodulatory enzyme secreted by the bacteria to remove carbohydra ...	This domain is found in Endo-beta-N-acetylglucosaminidase F2 (EndoS) from Streptococcus pyogenes (Swiss:Q48RM3) and similar sequences predominantly found in Firmicutes. EndoS is an immunomodulatory enzyme secreted by the bacteria to remove carbohydrates from IgG antibodies in a highly specific manner, which gives the pathogen a survival advantage over its host. This protein is composed of five distinct protein domains. The domain located at the base of the V-shaped EndoS structure (this entry), also named hybrid Ig domain, is composed of two subdomains. The smaller one is inserted within the loop that connects the LRR domain to the second and third beta strands of the larger subdomain. The latter is a typical Ig domain structurally similar to the interleukin-4 receptor [1,2,3].	Domain
B [auth C], C [auth D]	PF23916	Endo-beta-N-acetylglucosaminidase EndoS TIM-barrel domain (TIM-barrel_EndoS)	Endo-beta-N-acetylglucosaminidase EndoS TIM-barrel domain	This entry represents the TIM barrel domain found in Endo-beta-N-acetylglucosaminidase EndoS from Streptococcus spp. EndoS is a secreted protein that catalyses the hydrolysis of the N-linked oligosaccharides on opsonizing immunoglobulin G [1], thus c ...	This entry represents the TIM barrel domain found in Endo-beta-N-acetylglucosaminidase EndoS from Streptococcus spp. EndoS is a secreted protein that catalyses the hydrolysis of the N-linked oligosaccharides on opsonizing immunoglobulin G [1], thus contributing to immune response evasion and increased survival of the bacteria in patients [2]. This domain binds to complex-type N-glycans and has enzymatic activity [3,4].	Domain
B [auth C], C [auth D]	PF22382	Endo-beta-N-acetylglucosaminidase, helical bundle (EndoS_helical)	Endo-beta-N-acetylglucosaminidase, helical bundle	This entry represents a three-helix bundle domain of EndoS from Streptococcus pyogenes and similar bacterial proteins. EndoS is involved in immune evasion mechanisms and possesses a specific endoglycosidase activity that targets IgG antibodies [1,2]. ...	This entry represents a three-helix bundle domain of EndoS from Streptococcus pyogenes and similar bacterial proteins. EndoS is involved in immune evasion mechanisms and possesses a specific endoglycosidase activity that targets IgG antibodies [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth C], C [auth D]	Secreted endoglycosidase EndoS	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding toxin activity mannosyl-glycoprotein endo-beta-N-acetylglucosaminidase activity hydrolase activity, acting on glycosyl bonds hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity	symbiont-mediated perturbation of host defense response biological process involved in interspecies interaction between organisms response to stimulus response to other organism symbiont-mediated perturbation of host immune response symbiont-mediated response to host defenses response to external stimulus biological process involved in interaction with host response to biotic stimulus biological process involved in symbiotic interaction symbiont-mediated perturbation of host process response to host immune response symbiont-mediated evasion of host immune response response to host symbiont-mediated perturbation of host defense response biological process involved in interspecies interaction between organisms response to stimulus response to other organism symbiont-mediated perturbation of host immune response symbiont-mediated response to host defenses response to external stimulus biological process involved in interaction with host response to biotic stimulus biological process involved in symbiotic interaction symbiont-mediated perturbation of host process response to host immune response symbiont-mediated evasion of host immune response response to host response to external biotic stimulus modulation of process of another organism carbohydrate metabolic process primary metabolic process metabolic process cellular process	host cellular component host extracellular region cellular anatomical structure other organism part extracellular region
A, D [auth B]	IgG1 Fc	-	-	cell periphery cellular anatomical structure plasma membrane membrane extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth C], C [auth D]	IPR057016	Endo-beta-N-acetylglucosaminidase EndoS/F2-like, TIM-barrel domain	Domain
B [auth C], C [auth D]	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
B [auth C], C [auth D]	IPR001579	Glycosyl hydrolase family 18, active site	Active Site
B [auth C], C [auth D]	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
B [auth C], C [auth D]	IPR049410	Endo-beta-N-acetylglucosaminidase EndoS-like, Ig-like domain	Domain
B [auth C], C [auth D]	IPR055024	Endo-beta-N-acetylglucosaminidase EndoS, helical bundle	Domain
A, D [auth B]	IPR003597	Immunoglobulin C1-set	Domain
A, D [auth B]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, D [auth B]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A, D [auth B]	IPR013106	Immunoglobulin V-set domain	Domain
A, D [auth B]	IPR003599	Immunoglobulin domain subtype	Domain
A, D [auth B]	IPR007110	Immunoglobulin-like domain	Domain
A, D [auth B]	IPR050380	Immune Recognition and Response Modulators	Family
A, D [auth B]	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site

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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.