2VXT

Crystal structure of human IL-18 complexed to murine reference antibody 125-2H Fab

External Resource: Annotation

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

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth I]	d2vxti_	All beta proteins	beta-Trefoil	Cytokine	Interleukin-1 (IL-1)	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth H]	d2vxth_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	MOUSE (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C [auth L]	d2vxtl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	MOUSE (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C [auth L]	d2vxtl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	MOUSE (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth I]	SCOP2B Superfamily	Cytokine	8036000	3000648	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 I]	IL1	e2vxtI1	A: beta duplicates or obligate multimers	X: beta-Trefoil (From Topology)	H: beta-Trefoil (From Topology)	T: beta-Trefoil	F: IL1	ECOD (1.6)
A [auth H]	V-set_8	e2vxtH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
A [auth H]	C1-set_1	e2vxtH2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
C [auth L]	C1-set_4	e2vxtL2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
C [auth L]	V-set	e2vxtL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
A [auth H]	125-2H Fab	VH-CH1	Mus musculus (house mouse)	IGHV1S13501, IGHJ301, IGHG1*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202415-0)
C [auth L]	125-2H Fab	L-KAPPA	Mus musculus (house mouse)	IGKV9-12001, IGKJ201, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202415-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth H]	Heavy Chain	IGHV1	-	interleukin-18	SAbDab (2024-04-19)
C [auth L]	Light Chain	IGKV9	Kappa	interleukin-18	SAbDab (2024-04-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth I]	PF00340	Interleukin-1 / 18 (IL1)	Interleukin-1 / 18	This family includes interleukin-1 and interleukin-18.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth I]	INTERLEUKIN-18	protein binding binding signaling receptor binding cytokine receptor binding interleukin-18 receptor binding molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	regulation of biological process cell adhesion regulation of cellular process regulation of cell adhesion biological regulation cellular 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 response to stimulus T cell cytokine production regulation of biological process cell adhesion regulation of cellular process regulation of cell adhesion biological regulation cellular 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 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 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 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 positive regulation of cellular biosynthetic process regulation of defense response regulation of response to external stimulus defense response response to external stimulus regulation of inflammatory response positive regulation of response to external stimulus positive regulation of inflammatory response regulation of response to stress response to stress positive regulation of defense response inflammatory response developmental process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development multicellular organism development anatomical structure morphogenesis tube morphogenesis anatomical structure development anatomical structure formation involved in morphogenesis blood vessel development system development establishment of skin barrier epithelium development skin development skin epidermis development epidermis development animal organ development tissue development interleukin-13 production positive regulation of interleukin-13 production regulation of interleukin-13 production regulation of developmental process cellular developmental process negative regulation of developmental process negative regulation of biological process regulation of cell differentiation muscle structure development negative regulation of myoblast differentiation cell differentiation negative regulation of cellular process regulation of myoblast differentiation negative regulation of cell differentiation myoblast differentiation cell population proliferation chemical homeostasis homeostatic process triglyceride homeostasis acylglycerol homeostasis lipid homeostasis neutrophil activation cell activation myeloid leukocyte activation granulocyte activation leukocyte activation signaling cell-cell signaling cell communication sterol homeostasis cholesterol homeostasis positive regulation of cell population proliferation regulation of leukocyte activation regulation of cell activation lymphocyte activation positive regulation of natural killer cell proliferation leukocyte proliferation positive regulation of lymphocyte activation positive regulation of cell activation lymphocyte proliferation positive regulation of leukocyte activation positive regulation of mononuclear cell proliferation regulation of natural killer cell activation regulation of lymphocyte proliferation regulation of leukocyte proliferation positive regulation of lymphocyte proliferation positive regulation of natural killer cell activation natural killer cell activation natural killer cell proliferation mononuclear cell proliferation regulation of cell population proliferation positive regulation of leukocyte proliferation regulation of mononuclear cell proliferation regulation of lymphocyte activation regulation of natural killer cell proliferation cellular response to stimulus positive regulation of cell communication regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signal transduction regulation of signal transduction intracellular signal transduction regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling positive regulation of intracellular signal transduction positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction regulation of cell communication phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signaling macrophage derived foam cell differentiation positive regulation of developmental process foam cell differentiation positive regulation of cell differentiation regulation of macrophage derived foam cell differentiation positive regulation of macrophage derived foam cell differentiation regulation of alpha-beta T cell activation positive regulation of T cell differentiation alpha-beta T cell differentiation involved in immune response regulation of cell development type 2 immune response T cell activation regulation of type 2 immune response regulation of T-helper cell differentiation alpha-beta T cell activation positive regulation of CD4-positive, alpha-beta T cell differentiation T-helper cell differentiation positive regulation of cell development regulation of leukocyte cell-cell adhesion positive regulation of alpha-beta T cell differentiation cell development positive regulation of leukocyte cell-cell adhesion CD4-positive, alpha-beta T cell differentiation positive regulation of T-helper cell differentiation positive regulation of cell-cell adhesion regulation of T cell differentiation alpha-beta T cell differentiation T cell activation involved in immune response leukocyte activation involved in immune response regulation of T-helper 2 cell differentiation regulation of cell-cell adhesion hemopoiesis positive regulation of T-helper 2 cell differentiation regulation of CD4-positive, alpha-beta T cell activation regulation of leukocyte differentiation mononuclear cell differentiation lymphocyte differentiation cell activation involved in immune response CD4-positive, alpha-beta T cell differentiation involved in immune response T cell differentiation positive regulation of T cell activation positive regulation of alpha-beta T cell activation leukocyte differentiation regulation of CD4-positive, alpha-beta T cell differentiation regulation of alpha-beta T cell differentiation leukocyte cell-cell adhesion positive regulation of CD4-positive, alpha-beta T cell activation cell-cell adhesion alpha-beta T cell activation involved in immune response positive regulation of hemopoiesis CD4-positive, alpha-beta T cell activation T-helper 2 cell differentiation lymphocyte activation involved in immune response regulation of lymphocyte differentiation regulation of multicellular organismal development positive regulation of cell adhesion regulation of T cell activation T cell differentiation involved in immune response positive regulation of type 2 immune response regulation of hemopoiesis positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation biological process involved in interspecies interaction between organisms response to other organism defense response to symbiont leukocyte mediated cytotoxicity response to biotic stimulus defense response to other organism natural killer cell mediated cytotoxicity innate immune response response to external biotic stimulus natural killer cell mediated immunity cell killing positive regulation of tissue remodeling tissue remodeling regulation of tissue remodeling sleep positive regulation of T cell proliferation positive regulation of activated T cell proliferation regulation of activated T cell proliferation activated T cell proliferation T cell proliferation regulation of T cell proliferation adaptive thermogenesis multicellular organismal-level homeostasis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis positive regulation of cold-induced thermogenesis regulation of chemokine production chemokine production positive regulation of chemokine production positive regulation of DNA-binding transcription factor activity positive regulation of NF-kappaB transcription factor activity RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process positive regulation of molecular function nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process primary metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process regulation of molecular function organic cyclic compound metabolic process regulation of DNA-binding transcription factor activity organic cyclic compound biosynthetic process regulation of DNA-templated transcription positive regulation of phosphorylation positive regulation of phosphate metabolic process regulation of phosphate metabolic process peptidyl-amino acid modification phosphate-containing compound metabolic process protein modification process phosphorus metabolic process positive regulation of protein phosphorylation tyrosine phosphorylation of STAT protein protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation regulation of protein metabolic process macromolecule modification regulation of phosphorus metabolic process cell surface receptor signaling pathway via STAT regulation of protein modification process regulation of protein phosphorylation positive regulation of protein metabolic process peptidyl-tyrosine modification positive regulation of peptidyl-tyrosine phosphorylation positive regulation of protein modification process protein metabolic process organonitrogen compound metabolic process cell surface receptor signaling pathway regulation of tyrosine phosphorylation of STAT protein regulation of peptidyl-tyrosine phosphorylation positive regulation of tyrosine phosphorylation of STAT protein regulation of phosphorylation peptidyl-tyrosine phosphorylation cell surface receptor signaling pathway via JAK-STAT granulocyte macrophage colony-stimulating factor production organonitrogen compound biosynthetic process positive regulation of granulocyte macrophage colony-stimulating factor production regulation of granulocyte macrophage colony-stimulating factor production regulation of smooth muscle cell proliferation smooth muscle cell proliferation positive regulation of smooth muscle cell proliferation muscle cell proliferation regulation of non-canonical NF-kappaB signal transduction non-canonical NF-kappaB signal transduction positive regulation of non-canonical NF-kappaB signal transduction interleukin-17 production regulation of interleukin-17 production positive regulation of interleukin-17 production positive regulation of neuroinflammatory response regulation of neuroinflammatory response neuroinflammatory response transcription by RNA polymerase II regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of RNA biosynthetic process response to organic substance cellular response to interleukin-18 response to interleukin-18 response to cytokine cytokine-mediated signaling pathway interleukin-18-mediated signaling pathway cellular response to chemical stimulus response to chemical cellular response to cytokine stimulus cellular response to organic substance regulation of type II interferon production type II interferon production positive regulation of type II interferon production defense response to Gram-positive bacterium defense response to bacterium response to bacterium regulation of NK T cell proliferation positive regulation of NK T cell proliferation positive regulation of alpha-beta T cell proliferation alpha-beta T cell proliferation NK T cell proliferation positive regulation of NK T cell activation regulation of alpha-beta T cell proliferation regulation of NK T cell activation NK T cell activation	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol extracellular region extracellular space
A [auth H]	MURINE IGG 125-2H	-	-	-
C [auth L]	MURINE IGG 125-2H	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth I]	IPR000975	Interleukin-1 family	Family
B [auth I]	IPR015529	Interleukin-18	Family
B [auth I]	IPR008996	Cytokine IL1/FGF	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth I]	Pharos: Q14116	autoimmune hepatitis leishmaniasis cancer glomerulonephritis rheumatoid arthritis metabolic syndrome X sarcoidosis Neoplasm Metastasis heart valve disease pneumonia prostate cancer brain ischemia contact dermatitis allergic contact dermatitis urticaria autoimmune hepatitis leishmaniasis cancer glomerulonephritis rheumatoid arthritis metabolic syndrome X sarcoidosis Neoplasm Metastasis heart valve disease pneumonia prostate cancer brain ischemia contact dermatitis allergic contact dermatitis urticaria allergic disease polyomavirus infectious disease calcinosis malignant pancreatic neoplasm depressive disorder esophageal adenocarcinoma gastric carcinoma oral cavity neoplasm peripheral nervous system disease arthritic joint disease inborn carbohydrate metabolic disorder invasive ductal breast carcinoma schizophrenia lung cancer spina bifida malignant mesothelioma type 2 diabetes mellitus osteosarcoma peripheral neuropathy pneumonitis atherosclerosis inflammatory bowel disease benign neoplasm kidney disease Sjogren syndrome lung carcinoma subependymal giant cell astrocytoma drug-induced liver injury obesity disorder head and neck cancer ovarian cancer pilocytic astrocytoma autoimmune disease interstitial cystitis psoriasis bipolar disorder large cell medulloblastoma skin disease malignant glioma

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.