Annotations: 3IPK

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF08363	e3ipkA1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: V-region of surface antigen I/II (SA I/II, PAC) (From Topology)	T: V-region of surface antigen I/II (SA I/II, PAC)	F: PF08363	ECOD (1.6)
B	PF08363	e3ipkB1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: V-region of surface antigen I/II (SA I/II, PAC) (From Topology)	T: V-region of surface antigen I/II (SA I/II, PAC)	F: PF08363	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	6.10.250.2200	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
A	2.60.530.10	Mainly Beta	Sandwich	Major cell-surface adhesin PAc	Major cell-surface adhesin PAc	CATH (4.3.0)
B	6.10.250.2200	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
B	2.60.530.10	Mainly Beta	Sandwich	Major cell-surface adhesin PAc	Major cell-surface adhesin PAc	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF06696	Streptococcal surface antigen repeat (Strep_SA_rep)	Streptococcal surface antigen repeat	-	Repeat
A, B	PF08363	Glucan-binding protein C (GbpC)	Glucan-binding protein C	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	AgI/II	cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	membrane organization cellular component organization membrane fusion cellular process cellular component organization or biogenesis protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization membrane organization cellular component organization membrane fusion cellular process cellular component organization or biogenesis protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization intracellular protein transport endoplasmic reticulum to Golgi vesicle-mediated transport Golgi vesicle transport vesicle-mediated transport	extracellular region cellular anatomical entity membrane-bounded organelle intracellular anatomical structure transport vesicle membrane intracellular vesicle transport vesicle membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle coated vesicle membrane extracellular region cellular anatomical entity membrane-bounded organelle intracellular anatomical structure transport vesicle membrane intracellular vesicle transport vesicle membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle coated vesicle membrane COPII-coated ER to Golgi transport vesicle vesicle membrane cytoplasmic vesicle ER to Golgi transport vesicle membrane organelle coated vesicle cytoplasm vesicle organelle membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR013574	Glucan-binding protein C/Surface antigen I/II, V-domain	Domain
A, B	IPR041324	Antigen I/II, N-terminal	Domain
A, B	IPR026345	Adhesin isopeptide-forming adherence domain	Domain
A, B	IPR021197	Cross-wall-targeting lipoprotein motif	Conserved Site
A, B	IPR009578	Cell surface antigen I/II A repeat	Repeat
A, B	IPR032300	Cell surface antigen, C-terminal	Domain
A, B	IPR036234	Glucan-binding protein C/Surface antigen I/II, V-domain superfamily	Homologous Superfamily
A, B	IPR019931	LPXTG cell wall anchor 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 R01GM133198.