Recombinant Human Interleukin-17 receptor A (IL17RA), partial (Active)

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Code CSB-AP004351HU
Size $96
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Greater than 90% as determined by SDS-PAGE.
Less than 1.0 EU/μg as determined by LAL method.
The ED50 as determined by its ability to inhibit IL-17-induced IL-6 secretion by NIH?3T3 mouse embryonic fibroblast cells is less than 200 ng/ml.
Target Names
Uniprot No.
Research Area
Alternative Names
CANDF5; CD217; CD217 antigen; CDw217; CTLA8; HIL 17R; hIL17R; I17RA_HUMAN; IL 17 receptor A; IL 17 receptor; IL 17RA; IL-17 receptor A; IL-17RA; IL17; IL17A receptor; IL17R; IL17RA; IMD51; Interleukin 17 receptor A; Interleukin-17 receptor A; MGC10262
Homo sapiens (Human)
Mammalian cell
Expression Region
Complete Sequence
Mol. Weight
60.6 kDa
Protein Length
Extracellular Domain
Tag Info
C-terminal hFc-tagged
Lyophilized powder
Lyophilized from a 0.2 μm filtered 1xPBS, pH 7.4
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Basically, we can dispatch the products out in 5-10 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

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Target Background

Receptor for IL17A and IL17F, major effector cytokines of innate and adaptive immune system involved in antimicrobial host defense and maintenance of tissue integrity. Receptor for IL17A. Receptor for IL17F. Binds to IL17A with higher affinity than to IL17F. Binds IL17A and IL17F homodimers as part of a heterodimeric complex with IL17RC. Also binds heterodimers formed by IL17A and IL17F as part of a heterodimeric complex with IL17RC. Cytokine binding triggers homotypic interaction of IL17RA and IL17RC chains with TRAF3IP2 adapter, leading to TRAF6-mediated activation of NF-kappa-B and MAPkinase pathways, ultimately resulting in transcriptional activation of cytokines, chemokines, antimicrobial peptides and matrix metalloproteinases, with potential strong immune inflammation. Involved in antimicrobial host defense primarily promoting neutrophil activation and recruitment at infection sites to destroy extracellular bacteria and fungi. In secondary lymphoid organs, contributes to germinal center formation by regulating the chemotactic response of B cells to CXCL12 and CXCL13, enhancing retention of B cells within the germinal centers, B cell somatic hypermutation rate and selection toward plasma cells. Plays a role in the maintenance of the integrity of epithelial barriers during homeostasis and pathogen infection. Stimulates the production of antimicrobial beta-defensins DEFB1, DEFB103A, and DEFB104A by mucosal epithelial cells, limiting the entry of microbes through the epithelial barriers. Involved in antiviral host defense through various mechanisms. Enhances immunity against West Nile virus by promoting T cell cytotoxicity. Contributes to Influenza virus clearance by driving the differentiation of B-1a B cells, providing for production of virus-specific IgM antibodies at first line of host defense. Receptor for IL17C as part of a heterodimeric complex with IL17RE.; (Microbial infection) Receptor for SARS coronavirus-2/SARS-CoV-2 virus protein ORF8, leading to IL17 pathway activation and an increased secretion of pro-inflammatory factors through activating NF-kappa-B signaling pathway.
Gene References into Functions
  1. The SNP rs4819554 in the promoter region of IL17RA significantly influences the response to anti-TNF drugs at week 12. PMID: 27670766
  2. Combination of polymorphisms in the NOD2, IL17RA, EPHA2 and KALRN genes could play a significant role in the development of sarcoidosis by maintaining a chronic pro-inflammatory status in macrophages PMID: 29554915
  3. The data connect increased interleukin (IL)-17A/IL-17RA signaling in autism spectrum disorder patients with enhanced oxidative inflammation in monocytes. PMID: 28935156
  4. IL-17RA is essential for mucocutaneous immunity to Candida and Staphylococcus, but otherwise largely redundant PMID: 27930337
  5. Here, we discuss the latest discoveries on the role of the IL-17A/IL-17RA axis in driving host pulmonary defence and immunopathology. PMID: 27033174
  6. High IL-17RA expression is associated with prostate cancer. PMID: 26871944
  7. Expression of these mediators was confirmed in end-stage COPD. Thus, accumulation of mast cells in COPD may contribute to vascular remodeling. PMID: 28298222
  8. cyanidin specifically recognizes an IL-17A binding site in the IL-17A receptor subunit (IL-17RA) and inhibits the IL-17A/IL-17RA interaction. PMID: 28223414
  9. SNP rs4819554 in promoter is associated with functional severity of ankylosing spondylitis PMID: 27415816
  10. It has been shown that IL-17 can be produced by enteroendocrine chromogranin A-positive cells as well as by goblet cells in the human colon. PMID: 27660002
  11. Results suggest that IL-17-IL-17R interaction in GSCs induces an autocrine/paracrine cytokine feedback loop, which may provide an important signaling component for maintenance/self-renewal of GSCs. PMID: 26755664
  12. High IL-17RA expression is associated with Intrahepatic Cholangiocarcinoma. PMID: 26228109
  13. Identified the IL17RA rs4819554 SNP as a risk factor for psoriasis. PMID: 26347322
  14. IL-17 receptor A and adenosine deaminase 2 deficiency due to deletion mutations was found in siblings with chronic mucocutaneous candidiasis and chronic systemic inflammation. PMID: 26607704
  15. In vitro, CSE stimulation significantly increased IL-17F and IL-17R in 16HBE (2.5%) and A549 (5%) while IL-17A and IL-17F in PBMC (10%). IL-17A and CSE stimulation, rather than CSE or rhIL-17A alone, increased proliferation in 16HBE and apoptosis in A549 PMID: 26198032
  16. The data indicate that the genetic variants of rs2275913 in IL-17A, rs763780 in IL-17F, and rs4819554 in IL-17RA may not play a role in the pathogenesis of preeclampsia in Chinese Han women. PMID: 26451724
  17. IL17F and IL17RA polymorphisms modulate susceptibility to cerebral malaria(CM) and provide evidence that IL-17F protects against CM. PMID: 26667835
  18. Increased expression of IL-17RA plays an important role in gastric cancer progression, migration and prognosis. PMID: 26261590
  19. Both genetic variants of IL-17R (rs882643 and rs2241049) were associated with PGD. This confirms a genetic predisposition toward PGD and suggests a role of IL-17 in driving neutrophilia in PGD. PMID: 25935436
  20. The presence of IL7R polymorphisms seems to be related to severe liver disease in HIV/hepatitis c virus coinfected patients. PMID: 26123260
  21. expression of immunoreactivity for IL-17A, IL-17RA, IL-17E, and IL-17F was significantly elevated in prostatic tissue from benign prostatic hyperplasia and prostate cancer compared with that in controls PMID: 26356122
  22. genetic polymorphism is associated with a reduced renal filtration rate, and with the risk of developing end stage renal disease in healthy elderly from Spain PMID: 25636567
  23. IL17RA polymorphisms, but not those of IL17, can influence both the development and the bilaterality of papillary thyroid carcinoma PMID: 25484349
  24. IL-17R was almost exclusively expressed by endothelial cells, not by myeloma cells in the masses of skeletal extramedullary disease patients. PMID: 24916639
  25. Interleukin-17 receptor A crystal structure shows that the downstream motif of IL-17RA SEFIR together with helix alpha C could provide a composite ligand-binding surface for recruiting Act1 during IL-17 signaling. PMID: 24816115
  26. IL17-dependent retinal degeneration in a mouse model of focal retinal degeneration can be prevented by gene therapy with adeno-associated virus vector encoding soluble IL17 receptor PMID: 24780906
  27. Whereas no association was found between the alternative splicing SNP, rs6897932, and multiple sclerosis, a significant link was found between the promoter single nucleotide polymorphism, rs11567685, and the disease. PMID: 24166352
  28. Genetic variation in interleukin-17 receptor A is functionally associated with chronic rejection after lung transplantation. PMID: 24263024
  29. Data show that the interleukin (IL)-17 receptor IL-17RA variant is generated by spliced out of exon 11 encoding the transmembrane region in a variety of tissues. PMID: 24084331
  30. The increased IL-25 levels in plasma and the expression of IL-17RA and IL-17RB on eosinophils in allergic asthma patients suggests that IL-25 may activate eosinophils during allergic inflammation. PMID: 24247484
  31. crystal structures of homodimeric IL-17A and its complex with IL-17RA, are reported. PMID: 23695682
  32. Il-17R SNPs were not associated with psoriatic arthritis susceptibility in northern Italians. PMID: 22955875
  33. polymorphism of IL-17R plays no significant role in incidence of chronic periodontitis and Periimplantitis. PMID: 23852838
  34. Our results might be helpful for explaining the missing heritability of the psoriasis due to epistasis and provide a deep insight into the important role of the IL23/Th17 pathway in the pathogenesis of psoriasis. PMID: 22909235
  35. Data suggest that the interleukin 17 receptor A (IL17RA) minor alleles of the three single nucleotide polymorphisms (SNP) may decrease the risk of Aspirin Exacerbated Respiratory Disease (AERD) via attenuation of IL17RA gene expression. PMID: 23220496
  36. IL-17A/IL-17RA interaction promoted the metastasis of OS in nude mice. PMID: 23192273
  37. Our data indicates that serum IL-17 levels are significantly increased in intractable Graves disease and affected thyrocytes show functional IL-17R expression. PMID: 23501056
  38. Two polymorphisms within the IL17E and IL17RA genes are associated with ESRD independent of age and sex. PMID: 23147652
  39. Data show that IL-17RA, IL-17RC, IL-22R1, ERK1/2 MAPK and NF-kappaB pathways are involved in Th17 cytokine-induced proliferation. PMID: 22898922
  40. protein levels of IL-17 and IL-17R positively correlated with the frequency of seizures in focal cortical dysplasias patients patients. PMID: 23334598
  41. IFN-alpha could be associated with the expansion of IL-7Ralpha(low) CD45RA(+) EM CD8(+) T cells in the CMV-uninfected elderly PMID: 22484243
  42. Blockage of IL-17RA with an anti-IL-17RA antibody inhibited the production of IL-6, IL-8, and MMP-3; demonstrate the functional significance of IL-17RA in psoriatic arthritis PMID: 21894442
  43. mRNA levels of IL-17, IL-17R and MMP-9 were also higher in the invasive group than in the non-invasive group in human pituitary adenomas. PMID: 21279695
  44. IL-17/IL-17RA signaling plays an important role in myocardial collagen metabolism in hypertension-induced diastolic dysfunction. PMID: 21530504
  45. IL-17 may have an important role in the occurrence of nasal polyps by specific combination with IL-17R and over-expression in nasal polyps. PMID: 16874957
  46. Human periodontal ligament fibroblasts are a target of Th17, and that IL-17 appears to up-regulate the expression of IL-23 p19 via a homeostatic mechanism involving Akt-, p38 MAPK-, and ERK 1/2-dependent NF-kappaB signalling versus the JNK/AP-1 pathway. PMID: 21145111
  47. an extended SEFIR domain is required for il-17RA-mediated signal transduction. PMID: 20729198
  48. Expression, modulation and signalling of IL-17 receptor in fibroblast-like synoviocytes of patients with rheumatoid arthritis PMID: 11966773
  49. cell membrane IL-17R is required for signaling by both IL-17A and IL-17F PMID: 15972674
  50. In this JEG-3 cell model of human trophoblast, the IL-17 receptor may have a regulatory role in trophoblast invasion. PMID: 16533341

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Involvement in disease
Immunodeficiency 51 (IMD51)
Subcellular Location
[Isoform 1]: Cell membrane; Single-pass type I membrane protein.; [Isoform 2]: Secreted.
Tissue Specificity
Widely expressed.
Database Links

HGNC: 5985

OMIM: 605461

KEGG: hsa:23765

STRING: 9606.ENSP00000320936

UniGene: Hs.48353

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