4HSA

Structure of interleukin 17a in complex with il17ra receptor

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cystine-knot cytokines	8088224	3000846	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Cystine-knot cytokines	8088224	3000846	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Cystine-knot cytokines	8088224	3000846	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Cystine-knot cytokines	8088224	3000846	SCOP2B (2022-06-29)
C	SCOP2 Family	Fibronectin type III	8045769	4007555	SCOP2 (2022-06-29)
C	SCOP2 Family	Fibronectin type III	8045809	4007555	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	Fibronectin type III	8092065	3002063	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	Fibronectin type III	8092066	3002063	SCOP2 (2022-06-29)
F	SCOP2B Superfamily	Fibronectin type III	8092066	3002063	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Fibronectin type III	8092065	3002063	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	IL17	e4hsaA1	A: few secondary structure elements	X: Cystine-knot cytokines (From Topology)	H: Cystine-knot cytokines (From Topology)	T: Cystine-knot cytokines	F: IL17	ECOD (1.6)
B	IL17	e4hsaB1	A: few secondary structure elements	X: Cystine-knot cytokines (From Topology)	H: Cystine-knot cytokines (From Topology)	T: Cystine-knot cytokines	F: IL17	ECOD (1.6)
D	IL17	e4hsaD1	A: few secondary structure elements	X: Cystine-knot cytokines (From Topology)	H: Cystine-knot cytokines (From Topology)	T: Cystine-knot cytokines	F: IL17	ECOD (1.6)
E	IL17	e4hsaE2	A: few secondary structure elements	X: Cystine-knot cytokines (From Topology)	H: Cystine-knot cytokines (From Topology)	T: Cystine-knot cytokines	F: IL17	ECOD (1.6)
C	IL17R_fnIII_D1	e4hsaC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: IL17R_fnIII_D1	ECOD (1.6)
C	IL17R_fnIII_D2	e4hsaC2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: IL17R_fnIII_D2	ECOD (1.6)
F	IL17R_fnIII_D1	e4hsaF2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: IL17R_fnIII_D1	ECOD (1.6)
F	IL17R_fnIII_D2	e4hsaF1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: IL17R_fnIII_D2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.10.90.10	Mainly Beta	Ribbon	Cystine Knot Cytokines, subunit B	Cystine-knot cytokines	CATH (4.3.0)
B	2.10.90.10	Mainly Beta	Ribbon	Cystine Knot Cytokines, subunit B	Cystine-knot cytokines	CATH (4.3.0)
D	2.10.90.10	Mainly Beta	Ribbon	Cystine Knot Cytokines, subunit B	Cystine-knot cytokines	CATH (4.3.0)
E	2.10.90.10	Mainly Beta	Ribbon	Cystine Knot Cytokines, subunit B	Cystine-knot cytokines	CATH (4.3.0)
C	2.60.40.2160	Mainly Beta	Sandwich	Immunoglobulin-like	Interleukin-17 receptor A/B, fibronectin-III-like domain 1	CATH (4.3.0)
C	2.60.40.2150	Mainly Beta	Sandwich	Immunoglobulin-like	Interleukin-17 receptor A/B, fibronectin-III-like domain 2	CATH (4.3.0)
F	2.60.40.2160	Mainly Beta	Sandwich	Immunoglobulin-like	Interleukin-17 receptor A/B, fibronectin-III-like domain 1	CATH (4.3.0)
F	2.60.40.2150	Mainly Beta	Sandwich	Immunoglobulin-like	Interleukin-17 receptor A/B, fibronectin-III-like domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, D, E	PF06083	Interleukin-17 (IL17)	Interleukin-17	-	Family
C, F	PF16556	Interleukin-17 receptor, fibronectin-III-like domain 1 (IL17R_fnIII_D1)	Interleukin-17 receptor, fibronectin-III-like domain 1	IL17R_fnIII_D1 is the first of two fibronectin 3-like domains on interleukin-17 receptor proteins A and B. The tow fnIII domains are linked and together bind two molecules of IL-17 at one of its receptor-binding interfaces. This allows the other int ...	IL17R_fnIII_D1 is the first of two fibronectin 3-like domains on interleukin-17 receptor proteins A and B. The tow fnIII domains are linked and together bind two molecules of IL-17 at one of its receptor-binding interfaces. This allows the other interface to bind to another receptor, thus allowing the IL-17 family of homodimeric cytokines to coordinate two different receptors [1].	Domain
C, F	PF16578	Interleukin 17 receptor D (IL17R_fnIII_D2)	Interleukin 17 receptor D	IL17R_fnIII_D2 is the second extracellular fibronectin III-like domain on interleukin17-receptor-D molecules. The exact ligands of IL17R-D are not known [1,2,3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, D, E	Interleukin-17A	protein heterodimerization activity protein binding binding protein dimerization activity identical protein binding protein homodimerization activity molecular function activator activity signaling receptor binding molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	regulation of defense response response to stimulus regulation of response to external stimulus negative regulation of inflammatory response negative regulation of biological process regulation of response to wounding response to stress regulation of response to stress response to wounding regulation of biological process regulation of inflammatory response to wounding defense response negative regulation of response to stimulus biological regulation regulation of defense response response to stimulus regulation of response to external stimulus negative regulation of inflammatory response negative regulation of biological process regulation of response to wounding response to stress regulation of response to stress response to wounding regulation of biological process regulation of inflammatory response to wounding defense response negative regulation of response to stimulus biological regulation response to external stimulus regulation of inflammatory response negative regulation of response to wounding negative regulation of inflammatory response to wounding regulation of response to stimulus negative regulation of response to external stimulus inflammatory response to wounding negative regulation of defense response inflammatory response cellular response to stimulus regulation of cellular process cell surface receptor signaling pathway signaling response to cytokine interleukin-17A-mediated signaling pathway cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular response to cytokine stimulus cellular process signal transduction developmental process epithelium development epidermal cell differentiation cellular developmental process epidermis development animal organ development tissue development epithelial cell differentiation skin development cell differentiation keratinocyte differentiation anatomical structure development immune response immune system process adaptive immune response interleukin-6 production multicellular organismal process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of interleukin-6 production regulation of interleukin-6 production positive regulation of metabolic process positive regulation of biosynthetic process regulation of cytokine production cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process cellular metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process apoptotic process cell death programmed cell death biological process involved in interspecies interaction between organisms response to other organism defense response to symbiont response to biotic stimulus defense response to other organism innate immune response response to external biotic stimulus cell population proliferation epithelial cell proliferation keratinocyte proliferation cell-cell signaling chemokine (C-X-C motif) ligand 1 production regulation of chemokine production chemokine production positive regulation of chemokine production regulation of chemokine (C-X-C motif) ligand 1 production positive regulation of chemokine (C-X-C motif) ligand 1 production fibroblast activation cell activation regulation of interleukin-12 production interleukin-12 production positive regulation of interleukin-12 production cellular response to interleukin-17 response to interleukin-17 interleukin-17-mediated signaling pathway leukocyte migration myeloid leukocyte migration cell migration cell motility granulocyte migration interleukin-1 production regulation of interleukin-1 beta production positive regulation of interleukin-1 beta production positive regulation of interleukin-1 production regulation of interleukin-1 production interleukin-1 beta production regulation of humoral immune response regulation of immune effector process positive regulation of response to biotic stimulus antimicrobial humoral immune response mediated by antimicrobial peptide positive regulation of immune response regulation of immune system process positive regulation of immune system process immune effector process positive regulation of defense response positive regulation of production of molecular mediator of immune response regulation of immune response regulation of production of molecular mediator of immune response humoral immune response regulation of response to biotic stimulus antimicrobial humoral response positive regulation of response to stimulus positive regulation of antimicrobial peptide production positive regulation of humoral immune response positive regulation of response to external stimulus antimicrobial peptide production positive regulation of immune effector process production of molecular mediator of immune response regulation of antimicrobial humoral response positive regulation of antimicrobial humoral response regulation of antimicrobial peptide production defense response to fungus response to fungus positive regulation of interleukin-23 production interleukin-23 production regulation of interleukin-23 production positive regulation of interleukin-16 production regulation of interleukin-16 production interleukin-16 production defense response to Gram-negative bacterium defense response to bacterium response to bacterium system process epithelial structure maintenance homeostatic process digestive system process intestinal epithelial structure maintenance tissue homeostasis maintenance of gastrointestinal epithelium digestion multicellular organismal-level homeostasis anatomical structure homeostasis regulation of cytokine production involved in inflammatory response production of molecular mediator involved in inflammatory response cytokine production involved in inflammatory response positive regulation of cytokine production involved in inflammatory response regulation of tumor necrosis factor production positive regulation of tumor necrosis factor superfamily cytokine production tumor necrosis factor superfamily cytokine production positive regulation of tumor necrosis factor production tumor necrosis factor production regulation of tumor necrosis factor superfamily cytokine production Notch signaling pathway positive regulation of DNA-templated transcription RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process primary metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of DNA-templated transcription cellular response to interleukin-1 response to interleukin-1 bicellular tight junction assembly positive regulation of cellular component organization regulation of cellular component organization tight junction organization cellular component organization cellular component biogenesis cellular component assembly cell junction assembly cellular component organization or biogenesis cell-cell junction assembly cell-cell junction organization regulation of bicellular tight junction assembly positive regulation of cellular component biogenesis regulation of cellular component biogenesis apical junction assembly regulation of cell junction assembly positive regulation of cell junction assembly positive regulation of bicellular tight junction assembly cell junction organization tight junction assembly defense response to Gram-positive bacterium myeloid leukocyte differentiation regulation of leukocyte differentiation regulation of developmental process cell development regulation of cell differentiation positive regulation of osteoclast differentiation regulation of cell development positive regulation of developmental process regulation of osteoclast differentiation multicellular organism development positive regulation of cell differentiation positive regulation of hemopoiesis osteoclast differentiation regulation of multicellular organismal development hemopoiesis regulation of myeloid cell differentiation positive regulation of cell development regulation of myeloid leukocyte differentiation positive regulation of myeloid leukocyte differentiation myeloid cell differentiation positive regulation of myeloid cell differentiation regulation of hemopoiesis positive regulation of leukocyte differentiation leukocyte differentiation	cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane extracellular region extracellular space
C, F	Interleukin-17 receptor A	protein binding binding signaling receptor binding molecular transducer activity interleukin-17 receptor activity transmembrane signaling receptor activity signaling receptor activity cytokine receptor activity immune receptor activity	multicellular organismal process regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process regulation of interleukin-5 production positive regulation of biosynthetic process regulation of cytokine production cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process interleukin-5 production multicellular organismal process regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process regulation of interleukin-5 production positive regulation of biosynthetic process regulation of cytokine production cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process interleukin-5 production positive regulation of cellular process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of interleukin-5 production positive regulation of cellular biosynthetic process cellular response to stimulus response to stimulus cell surface receptor signaling pathway signaling response to cytokine interleukin-17A-mediated signaling pathway cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular response to cytokine stimulus signal transduction 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 stimulus positive regulation of response to external stimulus positive regulation of inflammatory response regulation of response to stimulus regulation of response to stress response to stress positive regulation of defense response inflammatory response adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains immune response immune system process adaptive immune response T-helper 17 type immune response interleukin-13 production positive regulation of interleukin-13 production regulation of interleukin-13 production interleukin-6 production positive regulation of interleukin-6 production regulation of interleukin-6 production cell chemotaxis chemotaxis granulocyte migration leukocyte migration cellular response to chemical stimulus taxis granulocyte chemotaxis myeloid leukocyte migration cell migration cell motility leukocyte chemotaxis locomotion biological process involved in interspecies interaction between organisms response to other organism defense response to symbiont response to biotic stimulus defense response to other organism innate immune response response to external biotic stimulus catabolic process primary metabolic process protein catabolic process protein metabolic process macromolecule catabolic process chemokine (C-X-C motif) ligand 1 production regulation of chemokine production chemokine production positive regulation of chemokine production regulation of chemokine (C-X-C motif) ligand 1 production positive regulation of chemokine (C-X-C motif) ligand 1 production fibroblast activation cell activation cellular response to interleukin-17 response to interleukin-17 interleukin-17-mediated signaling pathway defense response to fungus response to fungus positive regulation of interleukin-23 production interleukin-23 production regulation of interleukin-23 production response to virus regulation of cytokine production involved in inflammatory response production of molecular mediator involved in inflammatory response cytokine production involved in inflammatory response positive regulation of cytokine production involved in inflammatory response	cell periphery plasma membrane membrane cellular anatomical entity extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, D, E	IPR029034	Cystine-knot cytokine	Homologous Superfamily
A, B, D, E	IPR010345	Interleukin-17 family	Family
A, B, D, E	IPR020440	Interleukin-17, chordata	Family
C, F	IPR043046	Interleukin-17 receptor A/B, FnIII-like domain 2 superfamily	Homologous Superfamily
C, F	IPR032356	Interleukin-17 receptor, fibronectin-III-like domain 1	Domain
C, F	IPR013568	SEFIR domain	Domain
C, F	IPR038683	Interleukin-17 receptor A/B, FnIII-like domain 1 superfamily	Homologous Superfamily
C, F	IPR039465	Interleukin-17 receptor-like	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, D, E	Pharos: Q16552	acute promyelocytic leukemia allergic disease pneumonia autoimmune disease Arthritis, Experimental brain ischemia multiple sclerosis central nervous system disease graft versus host disease colitis ankylosing spondylitis COVID-19 pneumonitis pulmonary edema tuberculosis acute promyelocytic leukemia allergic disease pneumonia autoimmune disease Arthritis, Experimental brain ischemia multiple sclerosis central nervous system disease graft versus host disease colitis ankylosing spondylitis COVID-19 pneumonitis pulmonary edema tuberculosis drug-induced liver injury vasculitis acute lung injury inborn carbohydrate metabolic disorder arthritic joint disease influenza psoriasis demyelinating disease ulcerative colitis X-linked lymphoproliferative syndrome hypereosinophilic syndrome kidney disease asthma cancer obesity disorder psoriatic arthritis diarrheal disease skin disease uveitis exocrine pancreatic carcinoma alcohol abuse inflammatory bowel disease liver disease lymphoproliferative syndrome candidiasis periodontitis
C, F	Pharos: Q96F46	chronic mucocutaneous candidiasis immunodeficiency 51 brain ischemia psoriasis astrocytic tumor Cerebral Ischemia glioblastoma lung carcinoma medulloblastoma osteosarcoma pituitary cancer tuberculosis hepatocellular carcinoma malignant glioma nail disease chronic mucocutaneous candidiasis immunodeficiency 51 brain ischemia psoriasis astrocytic tumor Cerebral Ischemia glioblastoma lung carcinoma medulloblastoma osteosarcoma pituitary cancer tuberculosis hepatocellular carcinoma malignant glioma nail disease ovarian cancer candidiasis exocrine pancreatic carcinoma malignant pancreatic neoplasm pilocytic astrocytoma

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.