1IRA

COMPLEX OF THE INTERLEUKIN-1 RECEPTOR WITH THE INTERLEUKIN-1 RECEPTOR ANTAGONIST (IL1RA)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth X]	d1irax_	All beta proteins	beta-Trefoil	Cytokine	Interleukin-1 (IL-1)	Interleukin-1 receptor antagonist protein	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth Y]	d1iray1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	I set domains	Type-1 interleukin-1 receptor	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth X]	SCOP2B Superfamily	Cytokine	8042017	3000648	SCOP2B (2022-06-29)
B [auth Y]	SCOP2 Family	I set domains	8054778	4007543	SCOP2 (2022-06-29)
B [auth Y]	SCOP2 Family	I set domains	8055559	4007543	SCOP2 (2022-06-29)
B [auth Y]	SCOP2 Family	I set domains	8055561	4007543	SCOP2 (2022-06-29)
B [auth Y]	SCOP2 Superfamily	Immunoglobulin (Ig) domain-like	8054779	3000071	SCOP2 (2022-06-29)
B [auth Y]	SCOP2 Superfamily	Immunoglobulin (Ig) domain-like	8055560	3000071	SCOP2 (2022-06-29)
B [auth Y]	SCOP2 Superfamily	Immunoglobulin (Ig) domain-like	8055562	3000071	SCOP2 (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 [auth X]	IL1	e1iraX1	A: beta duplicates or obligate multimers	X: beta-Trefoil (From Topology)	H: beta-Trefoil (From Topology)	T: beta-Trefoil	F: IL1	ECOD (1.6)
B [auth Y]	I-set_4	e1iraY2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set_4	ECOD (1.6)
B [auth Y]	I-set_5	e1iraY1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set_5	ECOD (1.6)
B [auth Y]	I-set	e1iraY3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	2.80.10.50	Mainly Beta	Trefoil	Trefoil (Acidic Fibroblast Growth Factor, subunit A)		CATH (4.3.0)
B [auth Y]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF00340	Interleukin-1 / 18 (IL1)	Interleukin-1 / 18	This family includes interleukin-1 and interleukin-18.	Domain
B [auth Y]	PF18452	Immunoglobulin domain (Ig_6)	Immunoglobulin domain	This is an immunoglobulin domain which can be found in Interleukin-18 receptor alpha (IL-18Ra). IL-18Ra ectodomain folds into three immunoglobulin (Ig)-like domains, similar to IL-1 receptors. Each domain comprises a two-layer sandwich of six to nin ...	This is an immunoglobulin domain which can be found in Interleukin-18 receptor alpha (IL-18Ra). IL-18Ra ectodomain folds into three immunoglobulin (Ig)-like domains, similar to IL-1 receptors. Each domain comprises a two-layer sandwich of six to nine beta-strands and contains at least one intra-domain disulfide bond [1].	Domain
B [auth Y]	PF13895	Immunoglobulin domain (Ig_2)	Immunoglobulin domain	This domain contains immunoglobulin-like domains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	INTERLEUKIN-1 RECEPTOR ANTAGONIST	binding signaling receptor binding signaling receptor inhibitor activity receptor antagonist activity cytokine binding interleukin-1 receptor antagonist activity molecular function inhibitor activity protein binding interleukin-1 binding cytokine receptor binding molecular function regulator activity growth factor binding signaling receptor regulator activity interleukin-1 type I receptor antagonist activity binding signaling receptor binding signaling receptor inhibitor activity receptor antagonist activity cytokine binding interleukin-1 receptor antagonist activity molecular function inhibitor activity protein binding interleukin-1 binding cytokine receptor binding molecular function regulator activity growth factor binding signaling receptor regulator activity interleukin-1 type I receptor antagonist activity interleukin-1, type II receptor binding interleukin-1 receptor binding growth factor receptor binding interleukin-1 type II receptor antagonist activity interleukin-1, type I receptor binding molecular function activator activity cytokine activity receptor ligand activity signaling receptor activator activity	response to stimulus immune response immune system process organic substance metabolic process primary metabolic process metabolic process lipid metabolic process multicellular organismal process regulation of cellular process negative regulation of biological process embryo development negative regulation of cell adhesion regulation of cell-cell adhesion involved in gastrulation heterotypic cell-cell adhesion response to stimulus immune response immune system process organic substance metabolic process primary metabolic process metabolic process lipid metabolic process multicellular organismal process regulation of cellular process negative regulation of biological process embryo development negative regulation of cell adhesion regulation of cell-cell adhesion involved in gastrulation heterotypic cell-cell adhesion multicellular organism development cell adhesion cell-cell adhesion negative regulation of cellular process anatomical structure development regulation of cell-cell adhesion regulation of heterotypic cell-cell adhesion cell-cell adhesion via plasma-membrane adhesion molecules developmental process regulation of biological process cell-cell adhesion involved in gastrulation regulation of cell adhesion biological regulation embryonic morphogenesis gastrulation anatomical structure morphogenesis negative regulation of heterotypic cell-cell adhesion negative regulation of cell-cell adhesion cellular process response to corticosteroid response to organic substance response to lipid response to hormone response to steroid hormone response to chemical response to endogenous stimulus response to glucocorticoid response to organic cyclic compound acute-phase response defense response response to stress inflammatory response acute inflammatory response inflammatory response to antigenic stimulus cellular response to stimulus negative regulation of signaling signaling response to cytokine regulation of signal transduction negative regulation of cell communication cytokine-mediated signaling pathway cell communication negative regulation of interleukin-1-mediated signaling pathway cellular response to cytokine stimulus signal transduction cellular response to organic substance regulation of interleukin-1-mediated signaling pathway regulation of signaling cell surface receptor signaling pathway negative regulation of response to stimulus regulation of cytokine-mediated signaling pathway negative regulation of signal transduction cellular response to interleukin-1 regulation of response to cytokine stimulus cellular response to chemical stimulus negative regulation of response to cytokine stimulus regulation of response to stimulus negative regulation of cytokine-mediated signaling pathway interleukin-1-mediated signaling pathway regulation of cell communication response to interleukin-1 protein localization establishment of protein localization cellular localization nitrogen compound transport transport hormone secretion protein localization to extracellular region peptide secretion localization secretion by cell amide transport signal release cellular macromolecule localization regulation of biological quality secretion regulation of hormone levels organic substance transport establishment of protein localization to extracellular region cell-cell signaling export from cell protein secretion establishment of localization peptide transport protein transport peptide hormone secretion macromolecule localization hormone transport insulin secretion	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular organelle centrosome microtubule organizing center intracellular anatomical structure extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol cell periphery plasma membrane membrane nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
B [auth Y]	INTERLEUKIN-1 RECEPTOR	hydrolase activity, acting on glycosyl bonds hydrolase activity NAD+ nucleotidase, cyclic ADP-ribose generating hydrolase activity, hydrolyzing N-glycosyl compounds catalytic activity protein binding binding signaling receptor binding platelet-derived growth factor receptor binding growth factor receptor binding enzyme binding protease binding interleukin-1 binding growth factor binding hydrolase activity, acting on glycosyl bonds hydrolase activity NAD+ nucleotidase, cyclic ADP-ribose generating hydrolase activity, hydrolyzing N-glycosyl compounds catalytic activity protein binding binding signaling receptor binding platelet-derived growth factor receptor binding growth factor receptor binding enzyme binding protease binding interleukin-1 binding growth factor binding cytokine binding interleukin-1, type I, activating receptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity cytokine receptor activity immune receptor activity interleukin-1 receptor activity NADP+ nucleosidase activity	adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains multicellular organismal process regulation of immune effector process lymphocyte mediated immunity T cell mediated immunity positive regulation of leukocyte mediated immunity regulation of cellular process response to stimulus T cell cytokine production positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of immune response T-helper 1 cell cytokine production cytokine production organic substance biosynthetic process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains multicellular organismal process regulation of immune effector process lymphocyte mediated immunity T cell mediated immunity positive regulation of leukocyte mediated immunity regulation of cellular process response to stimulus T cell cytokine production positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of immune response T-helper 1 cell cytokine production cytokine production organic substance biosynthetic process leukocyte mediated immunity regulation of immune system process positive regulation of macromolecule metabolic process positive regulation of adaptive immune response positive regulation of T cell cytokine production positive regulation of immune system process regulation of T cell mediated immunity regulation of biological process regulation of cytokine production involved in immune response immune response regulation of adaptive immune response cellular metabolic process regulation of cellular metabolic process T-helper 1 type immune response regulation of T-helper 1 type immune response immune effector process regulation of gene expression regulation of leukocyte mediated immunity biosynthetic process regulation of response to stimulus positive regulation of production of molecular mediator of immune response positive regulation of multicellular organismal process regulation of immune response metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of production of molecular mediator of immune response positive regulation of cytokine production regulation of metabolic process positive regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains positive regulation of lymphocyte mediated immunity cellular biosynthetic process positive regulation of T-helper 1 cell cytokine production positive regulation of biological process positive regulation of cellular metabolic process regulation of T-helper 1 cell cytokine production positive regulation of response to stimulus regulation of T cell cytokine production CD4-positive, alpha-beta T cell cytokine production organic substance metabolic process regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains positive regulation of biosynthetic process regulation of cytokine production positive regulation of immune effector process regulation of multicellular organismal process cytokine production involved in immune response positive regulation of cellular process production of molecular mediator of immune response regulation of biosynthetic process positive regulation of T-helper 1 type immune response biological regulation regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process adaptive immune response regulation of cellular biosynthetic process regulation of lymphocyte mediated immunity positive regulation of gene expression immune system process positive regulation of T cell mediated immunity positive regulation of cytokine production involved in immune response cellular process positive regulation of cellular biosynthetic process positive regulation of locomotion regulation of cell motility regulation of neutrophil extravasation positive regulation of cell migration positive regulation of cell motility myeloid leukocyte migration cellular extravasation regulation of cell migration cell migration cell motility locomotion neutrophil extravasation regulation of leukocyte migration positive regulation of leukocyte migration positive regulation of neutrophil migration neutrophil migration granulocyte migration leukocyte migration positive regulation of neutrophil extravasation regulation of locomotion regulation of neutrophil migration positive regulation of cellular extravasation regulation of cellular extravasation response to organic substance response to chemical response to cytokine response to interleukin-1 cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction signaling regulation of signal transduction positive regulation of response to cytokine stimulus cytokine-mediated signaling pathway cell communication cellular response to cytokine stimulus cellular response to organic substance signal transduction regulation of interleukin-1-mediated signaling pathway regulation of signaling cell surface receptor signaling pathway regulation of cytokine-mediated signaling pathway cellular response to interleukin-1 regulation of response to cytokine stimulus cellular response to chemical stimulus interleukin-1-mediated signaling pathway positive regulation of interleukin-1-mediated signaling pathway regulation of cell communication positive regulation of cytokine-mediated signaling pathway positive regulation of signaling regulation of defense response regulation of response to external stimulus defense response regulation of inflammatory response response to external stimulus response to stress regulation of response to stress inflammatory response regulation of type II interferon production type II interferon production positive regulation of type II interferon production	cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR000975	Interleukin-1 family	Family
A [auth X]	IPR003297	Interleukin-1 receptor antagonist/Interleukin-36	Family
A [auth X]	IPR020877	Interleukin-1 conserved site	Conserved Site
A [auth X]	IPR008996	Cytokine IL1/FGF	Homologous Superfamily
B [auth Y]	IPR000157	Toll/interleukin-1 receptor homology (TIR) domain	Domain
B [auth Y]	IPR004074	Interleukin-1 receptor type I/II	Family
B [auth Y]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B [auth Y]	IPR003599	Immunoglobulin subtype	Domain
B [auth Y]	IPR041416	IL-1Ra-like, immunoglobulin domain	Domain
B [auth Y]	IPR004076	Interleukin-1 receptor type 1	Family
B [auth Y]	IPR015621	Interleukin-1 receptor family	Family
B [auth Y]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B [auth Y]	IPR035897	Toll/interleukin-1 receptor homology (TIR) domain superfamily	Homologous Superfamily
B [auth Y]	IPR007110	Immunoglobulin-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth X]	Pharos: P18510	sterile multifocal osteomyelitis with periostitis and pustulosis myocardial infarction rheumatoid arthritis status epilepticus malignant colon neoplasm myositis Schnitzler syndrome anthracosis Fever gout prostate cancer acute liver failure microvascular complications of diabetes, susceptibility to, 4 hereditary diffuse gastric adenocarcinoma multiple sclerosis sterile multifocal osteomyelitis with periostitis and pustulosis myocardial infarction rheumatoid arthritis status epilepticus malignant colon neoplasm myositis Schnitzler syndrome anthracosis Fever gout prostate cancer acute liver failure microvascular complications of diabetes, susceptibility to, 4 hereditary diffuse gastric adenocarcinoma multiple sclerosis pulmonary fibrosis juvenile idiopathic arthritis asthma brain ischemia proteinuria kidney disease autism lung carcinoma benign colon neoplasm pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia gastric neoplasm malignant glioma peripheral neuropathy hepatocellular carcinoma psoriasis cervical cancer idiopathic interstitial pneumonia tuberculosis arthritic joint disease ovarian mucinous adenocarcinoma diarrheal disease esophageal adenocarcinoma pancreatic ductal adenocarcinoma bipolar disorder periodic fever syndrome gastrointestinal mucositis brain injury acquired idiopathic inflammatory myopathy chronic kidney disease skin disease colonic neoplasm interstitial cystitis nephrolithiasis cystic fibrosis obesity disorder ulcerative colitis keratoconus ductal breast carcinoma in situ learning disability atypical teratoid rhabdoid tumor exanthem lung cancer autoimmune disease pancreatic intraductal papillary-mucinous neoplasm malignant ependymoma peripheral nervous system disease gastric cancer glioblastoma malignant pancreatic neoplasm pilocytic astrocytoma cancer cerebrovascular disorder chronic obstructive pulmonary disease spina bifida alopecia areata invasive ductal breast carcinoma delirium transitional cell carcinoma osteosarcoma dysthymic disorder
B [auth Y]	Pharos: P14778	endometriosis allergic disease ulcerative colitis pneumonia dermatomyositis psoriasis subependymal giant cell astrocytoma Gaucher disease interstitial cystitis adenoma Lobar Pneumonia malignant ependymoma asthma MALT lymphoma oligodendroglioma endometriosis allergic disease ulcerative colitis pneumonia dermatomyositis psoriasis subependymal giant cell astrocytoma Gaucher disease interstitial cystitis adenoma Lobar Pneumonia malignant ependymoma asthma MALT lymphoma oligodendroglioma breast cancer pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma cystic fibrosis pneumonitis rheumatoid arthritis Duchenne muscular dystrophy tuberculosis juvenile dermatomyositis adrenal cortex carcinoma lung cancer ankylosing spondylitis malignant mesothelioma autoimmune disease medulloblastoma brain injury ovarian cancer pancreatic intraductal papillary-mucinous neoplasm Crohn disease pituitary cancer primary biliary cholangitis skin disease large cell medulloblastoma lung carcinoma arthritic joint disease malignant pancreatic neoplasm myopathy pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.