Annotations: 8TUI

Crystal structure of Fab-Lirilumab bound to KIR2DL3

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Thera-SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth A]	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8054829	3000071	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)
B [auth L]	F5_F8_type_C	e8tuiL01	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: F5_F8_type_C	ECOD (v294.2)
A [auth H]	F5_F8_type_C	e8tuiH01	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: F5_F8_type_C	ECOD (v294.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGKV3	Kappa	killer cell immunoglobulin-like receptor 2dl3	SAbDab (2026-05-15)
A [auth H]	Heavy Chain	IGHV1	-	killer cell immunoglobulin-like receptor 2dl3	SAbDab (2026-05-15)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
B [auth L]	Lirilumab	KIRD2	Therapeutic SAbDab (2026-05-15)
A [auth H]	Lirilumab	KIRD2	Therapeutic SAbDab (2026-05-15)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth A]	PF00047	Immunoglobulin domain (ig)	Immunoglobulin domain	Members of the immunoglobulin superfamily are found in hundreds of proteins of different functions. Examples include antibodies, the giant muscle kinase titin and receptor tyrosine kinases. Immunoglobulin-like domains may be involved in protein-prote ...	Members of the immunoglobulin superfamily are found in hundreds of proteins of different functions. Examples include antibodies, the giant muscle kinase titin and receptor tyrosine kinases. Immunoglobulin-like domains may be involved in protein-protein and protein-ligand interactions.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth A]	Killer cell immunoglobulin-like receptor 2DL3	molecular transducer activity signaling receptor activity identical protein binding protein binding binding antigen binding	response to stimulus immune response immune system process cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation cell communication immune response-regulating signaling pathway regulation of response to stimulus regulation of immune response cellular process regulation of immune system process response to stimulus immune response immune system process cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation cell communication immune response-regulating signaling pathway regulation of response to stimulus regulation of immune response cellular process regulation of immune system process signal transduction	cell periphery cellular anatomical structure plasma membrane membrane
B [auth L]	Lirilumab Fab Light chain	-	-	-
A [auth H]	Lirilumab Fab Heavy Chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
C [auth A]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
C [auth A]	IPR003599	Immunoglobulin domain subtype	Domain
C [auth A]	IPR013151	Immunoglobulin-like beta-sandwich domain	Domain
C [auth A]	IPR050412	Immunoglobulin-like Receptors in Immune Regulation	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth A]	: P43628	inflammatory bowel disease psoriasis ulcerative colitis

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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.