Annotations: 8Y31

The crystal structure of the QX006N-Fab/IFNAR1-SD123 complex

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	UCR_hinge	e8y31F1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: UCR_hinge	ECOD (v295)
E	Levi_coat	e8y31E01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Levi_coat	ECOD (v295)
D	UCR_hinge	e8y31D1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: UCR_hinge	ECOD (v295)
B	UCR_hinge	e8y31B1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: UCR_hinge	ECOD (v295)
C	UCR_hinge	e8y31C1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: UCR_hinge	ECOD (v295)
A	UCR_hinge	e8y31A1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: UCR_hinge	ECOD (v295)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, D	Heavy Chain	IGHV3	-	interferon alpha/beta receptor 1	SAbDab (2026-07-10)
A, C	Light Chain	IGKV1	Kappa	interferon alpha/beta receptor 1	SAbDab (2026-07-10)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E, F	Interferon alpha/beta receptor 1	protein binding binding cytokine binding protein-macromolecule adaptor activity JAK pathway signal transduction adaptor activity molecular adaptor activity signaling adaptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity type I interferon receptor activity interferon receptor activity cytokine receptor activity immune receptor activity protein binding binding cytokine binding protein-macromolecule adaptor activity JAK pathway signal transduction adaptor activity molecular adaptor activity signaling adaptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity type I interferon receptor activity interferon receptor activity cytokine receptor activity immune receptor activity type I interferon binding interferon binding	cellular response to stimulus cell surface receptor signaling pathway via STAT regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation cell communication cellular process signal transduction cell surface receptor signaling pathway via JAK-STAT biological process involved in interspecies interaction between organisms response to other organism cellular response to stimulus cell surface receptor signaling pathway via STAT regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation cell communication cellular process signal transduction cell surface receptor signaling pathway via JAK-STAT biological process involved in interspecies interaction between organisms response to other organism response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus cellular respiration energy derivation by oxidation of organic compounds positive regulation of biological process regulation of generation of precursor metabolites and energy generation of precursor metabolites and energy regulation of cellular respiration positive regulation of cellular respiration positive regulation of metabolic process metabolic process regulation of metabolic process positive regulation of cellular process cellular response to interferon-beta response to peptide response to interferon-beta response to chemical response to cytokine cellular response to cytokine stimulus response to lipid response to oxygen-containing compound response to lipopolysaccharide response to bacterium response to molecule of bacterial origin response to interferon-alpha cellular response to interferon-alpha cellular response to virus cytokine-mediated signaling pathway interferon-mediated signaling pathway cellular response to type I interferon response to stress innate immune response immune response defense response defense response to symbiont immune system process defense response to other organism type I interferon-mediated signaling pathway response to type I interferon	cell periphery cellular anatomical structure plasma membrane membrane membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle late endosome cell periphery cellular anatomical structure plasma membrane membrane membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle late endosome cytoplasm vesicle lytic vacuole vacuole lysosome
B, D	QX006N-Fab-HC	-	-	-
A, C	QX006N-Fab-LC	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E, F	IPR050650	Type-II_Cytokine-TF_Rcpt	Unknown
E, F	IPR003961	Fibronectin type III	Domain
E, F	IPR016669	Interferon alpha/beta receptor 1	Family
E, F	IPR015373	Interferon/interleukin receptor domain	Domain
E, F	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
E, F	IPR036116	Fibronectin type III superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
E, F	: P17181	psoriasis systemic lupus erythematosus Virus Diseases acquired polycythemia vera Crohn disease inflammatory bowel disease malignant pancreatic neoplasm ovarian cancer relapsing-remitting multiple sclerosis tuberculosis exocrine pancreatic carcinoma influenza microphthalmia with limb anomalies pancreatic ductal adenocarcinoma rheumatoid arthritis psoriasis systemic lupus erythematosus Virus Diseases acquired polycythemia vera Crohn disease inflammatory bowel disease malignant pancreatic neoplasm ovarian cancer relapsing-remitting multiple sclerosis tuberculosis exocrine pancreatic carcinoma influenza microphthalmia with limb anomalies pancreatic ductal adenocarcinoma rheumatoid arthritis viral infectious disease Down syndrome hepatocellular carcinoma large cell medulloblastoma osteosarcoma

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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.