Annotations: 8DA9

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF02216	e8da9A1	A: alpha bundles	X: immunoglobulin/albumin-binding domain-like	H: Bacterial immunoglobulin/albumin-binding domains (From Topology)	T: Bacterial immunoglobulin/albumin-binding domains	F: PF02216	ECOD (1.6)
C	PF02216	e8da9C1	A: alpha bundles	X: immunoglobulin/albumin-binding domain-like	H: Bacterial immunoglobulin/albumin-binding domains (From Topology)	T: Bacterial immunoglobulin/albumin-binding domains	F: PF02216	ECOD (1.6)
B	PF02216	e8da9B1	A: alpha bundles	X: immunoglobulin/albumin-binding domain-like	H: Bacterial immunoglobulin/albumin-binding domains (From Topology)	T: Bacterial immunoglobulin/albumin-binding domains	F: PF02216	ECOD (1.6)
D	PF02216	e8da9D1	A: alpha bundles	X: immunoglobulin/albumin-binding domain-like	H: Bacterial immunoglobulin/albumin-binding domains (From Topology)	T: Bacterial immunoglobulin/albumin-binding domains	F: PF02216	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF02216	B domain (B)	B domain	This family contains the B domain of Staphylococcal protein A, which specifically binds to the Fc portion of immunoglobulin G.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Immunoglobulin G-binding protein A	protein-containing complex binding binding immunoglobulin binding IgG binding	-	extracellular region cellular anatomical entity
B	Affibody LL2.FIIV	-	-	-
D	Affibody LL2.FIIV	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR009063	Immunoglobulin/albumin-binding domain superfamily	Homologous Superfamily
A, C	IPR005877	YSIRK Gram-positive signal peptide	Domain
A, C	IPR036779	LysM domain superfamily	Homologous Superfamily
A, C	IPR005038	Octapeptide repeat	Repeat
A, C	IPR003132	Protein A, Ig-binding domain	Domain
A, C	IPR018392	LysM domain	Domain
A, C	IPR019931	LPXTG cell wall anchor domain	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, C	MLY	Parent Component: LYS RESID: AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084
B	MLY	Parent Component: LYS RESID: AA0075 , AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084
D	MLY	Parent Component: LYS RESID: AA0075 , AA0075 , AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084

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.