8H63 | pdb_00008h63

Crystal structure of Internalin A from Listeria monocytogenes with nanobody VHH10 bound

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	E set domains	8055067	3000070	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	L domain-like	8035149	3001010	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Glyco_hydro_43	e8h63A1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (develop294)
B		e8h63B1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F:	ECOD (develop294)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	internalin a	SAbDab (2026-03-20)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF12354	Bacterial adhesion/invasion protein N terminal (Internalin_N)	Bacterial adhesion/invasion protein N terminal	This domain family is found in bacteria, and is approximately 60 amino acids in length. The family is found in association with Pfam:PF00560, Pfam:PF08191, Pfam:PF09479. There are two completely conserved residues (I and F) that may be functionally i ...	This domain family is found in bacteria, and is approximately 60 amino acids in length. The family is found in association with Pfam:PF00560, Pfam:PF08191, Pfam:PF09479. There are two completely conserved residues (I and F) that may be functionally important. Internalin mediates bacterial adhesion and invasion of epithelial cells in the human intestine through specific interaction with its host cell receptor E-cadherin. This family is the N terminal of internalin, the cap domain of the protein. The cap domain is conserved between different internalin types. The cap domain does not interact with E cadherin, therefore its function is presumably structural: capping the hydrophobic core.	Domain
A	PF12799	Leucine Rich repeats (2 copies) (LRR_4)	Leucine Rich repeats (2 copies)	-	Repeat
A	PF08191	LRR adjacent (LRR_adjacent)	LRR adjacent	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Internalin A	-	-	cellular anatomical structure extracellular region cell periphery external encapsulating structure cell wall peptidoglycan-based cell wall
B	VHH10	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR025875	Leucine rich repeat 4	Repeat
A	IPR013378	Internalin B-like, B-repeat	Repeat
A	IPR001611	Leucine-rich repeat	Repeat
A	IPR012569	Internalin, Ig-like inter-repeat region	Domain
A	IPR024634	Internalin, N-terminal	Domain
A	IPR042229	Listeria-Bacteroides repeat domain superfamily	Homologous Superfamily
A	IPR003591	Leucine-rich repeat, typical subtype	Repeat
A	IPR019931	LPXTG cell wall anchor motif	Conserved Site
A	IPR047600	Internalin A	Family
A	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
A	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A	IPR014755	Copper resistance protein CopC/internalin, immunoglobulin-like	Homologous Superfamily
A	IPR050836	SDS22/Internalin LRR-containing	Family

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.