IL1R1 Antibody

Code CSB-PA011621ESR1HU
Size US$166
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  • Western Blot analysis of MCF7 cells using CSB-PA011621ESR1HU. Secondary antibody(HRP* Goat Anti Rabbit IgG(H+L) ) was diluted at 1:20000
  • Immunohistochemistry of paraffin-embedded human kidney tissue using CSB-PA011621ESR1HU at dilution of 1:100
  • Immunohistochemistry of paraffin-embedded human placenta tissue using CSB-PA011621ESR1HU at dilution of 1:100
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Product Details

Full Product Name
Rabbit anti-Homo sapiens (Human) IL1R1 Polyclonal antibody
Uniprot No.
Target Names
Alternative Names
IL1R1; IL1R; IL1RA; IL1RT1; Interleukin-1 receptor type 1; IL-1R-1; IL-1RT-1; IL-1RT1; CD121 antigen-like family member A; Interleukin-1 receptor alpha; IL-1R-alpha; Interleukin-1 receptor type I; p80; CD antigen CD121a
Raised in
Species Reactivity
Human, Mouse
Recombinant Human Interleukin-1 receptor type 1 protein (31-80AA)
Immunogen Species
Homo sapiens (Human)
Purification Method
Antigen Affinity Purified
It differs from different batches. Please contact us to confirm it.
PBS with 0.02% sodium azide, 50% glycerol, pH7.3.
Tested Applications
Recommended Dilution
Application Recommended Dilution
WB 1:500-1:2000
IHC 1:20-1:200
Troubleshooting and FAQs
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

The polyclonal antibody targeting IL1R1 was generated in rabbits using the recombinant human IL1R1 protein containing amino acids 31-80 as the immunogen. The IL1R1 antibody was then isolated and underwent antigen affinity purification. It specifically recognizes and binds to the IL1R1 protein present in human and mouse samples.

This IL1R1 antibody has been validated for use in ELISA, WB, and IHC assays, ensuring the functional reliability of the antibody. IL1R1 mainly acts as a receptor for IL-1α and IL-1β. Upon their binding, it induces the recruitment of the adaptor protein MyD88 and the subsequent activation of NF-κB and MAPK signaling pathways, responsible for the production of pro-inflammatory cytokines, chemokines, and other inflammatory mediators.

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Target Background

Receptor for IL1A, IL1B and IL1RN. After binding to interleukin-1 associates with the coreceptor IL1RAP to form the high affinity interleukin-1 receptor complex which mediates interleukin-1-dependent activation of NF-kappa-B, MAPK and other pathways. Signaling involves the recruitment of adapter molecules such as TOLLIP, MYD88, and IRAK1 or IRAK2 via the respective TIR domains of the receptor/coreceptor subunits. Binds ligands with comparable affinity and binding of antagonist IL1RN prevents association with IL1RAP to form a signaling complex. Involved in IL1B-mediated costimulation of IFNG production from T-helper 1 (Th1) cells.
Gene References into Functions
  1. interleukin-1 receptor 1/MyD88 signalling has roles in the development and progression of pulmonary hypertension PMID: 27418552
  2. Study highlights the association of genetic polymorphisms of IL1R1 with knee osteoarthritis susceptibility in the Northwestern Chinese Han population. PMID: 27980229
  3. Serum ST2 is elevated in heart failure patients and correlated with disease severity. PMID: 28164491
  4. Since mumps virus SH coimmunoprecipitated with tumor necrosis factor receptor 1 (TNFR1), RIP1, and IRAK1, we hypothesize that SH exerts its NF-kappaB activation inhibitory function by interacting with TNFR1, interleukin-1 receptor type 1 (IL-1R1), and TLR3 complexes in the plasma membrane of infected cells. PMID: 28659487
  5. salt-inducible kinase inhibition decreases proinflammatory cytokines in human myeloid cells upon IL-1R stimulation. PMID: 26590148
  6. study confirmed that genetic variant in IL-1R1(rs3917267) has significant association with HBV infection and HBV breakthrough infection in children, which provides new clues for the study of pathogenesis of chronic HBV infection in children PMID: 28027994
  7. The results present identification of critical regions within the TIR domain of IL-1 receptor type in humans and mice. PMID: 26279140
  8. IL1R1 SNP rs949963 is associated with the susceptibility to asthma in children from Central China and may increase the serum expression of IL1R1. PMID: 26975823
  9. investigated the association between four inflammatory cytokines (CD121a, interleukin [IL]-1beta, IL-8, and IL-11) and coronary heart disease PMID: 26098632
  10. This study found that the mRNA expression of IL-1R1, TNFR1, and TNFR2 was significantly higher in schizophreina PMID: 25749018
  11. IL-1R1 expression appears to define a tissue regulatory T cell phenotype together with the expression of CD25, glucocorticoid-induced tumor necrosis factor receptor family-related gene and CTLA-4. PMID: 26076982
  12. TNF-alpha (-308) GG, IL-10 (-819) TT, IL-10 (-1082) GG and IL1R (+1970) CC genotypes are found to be predominant (p=0.01, p=0.02, p=0.0001 and p=0.001, respectively) in both tuberculoid as well as lepromatous leprosy patients. PMID: 25697140
  13. IL-1 receptor gene polymorphisms could be one of the factors influencing the expression of membrane-bound IL-1 receptors on immunocompetent cells. PMID: 24976267
  14. severe forms of pancreatitis are associated with increased levels of IL-6, IL-10 and IL-1ra PMID: 25240697
  15. SUMOylation is a novel mechanism in the regulation of beta-arrestin 2-mediated IL-1R/TRAF6 signaling PMID: 25425640
  16. genetic polymorphism is associated with atopic dermatitis in Iranian pediatric population PMID: 23253688
  17. Blood monocytes from renal cell carcinoma patients displayed a tumor-promoting transcriptional profile that supported functions like angiogenesis and invasion. Induction of this protumor phenotype required an interleukin-1 receptor (IL-1R)-dependent mechanism. PMID: 25453823
  18. the NLRP3 inflammasome/IL-1RI axis is dispensable for PM10-facilitated allergic sensitization. PMID: 24988285
  19. Thirty-eight single nucleotide polymorphisms (SNPs) were identified within genomic regions containing all exons and relevant exon-intron boundaries in IL1R1 and IL1R2 in japanese aggressive periodontitis. PMID: 24818754
  20. Only the IL1RN tandem repeats polymorphism may be associated with Hashimoto's thyroiditis susceptibility; TSHR and IL1RN polymorphisms may represent prognostic factors for predicting the severity of the disease. PMID: 24328419
  21. ). Findings provide evidence of subgroups of women with breast cancer who report distinct trajectories of attentional function and of a genetic association between subgroup membership and an IL1R1 promoter polymorphism. PMID: 24315345
  22. No significant differences are detected in the Fcgamma-RIIa and IL1-Ra polymorphisms compared to controls in a study to search for associations between antineutrophil cytoplasm antibody-associated vasculitis and IL1R1 polymorphisms. PMID: 24356554
  23. results demonstrate clear functional consequences of the rs917997 risk polymorphism; this polymorphism leads to a loss-of-function through decreased IL-18RAP, IL-18R1, and IL-1R1 protein expression, which impairs autocrine IL-18 and IL-1 signaling PMID: 24842757
  24. The frequency of the IL-1RN rs315952 CT genotype was significantly lower among patients with systemic lupus erythematosus compared with healthy controls PMID: 23722873
  25. Common IL-33 and IL1RL1 polymorphisms contribute to the risk of inflammatory bowel disease PMID: 23634226
  26. The IL1R1 promoter SNP rs2192752 may contribute to the location of papillary thyroid carcinoma (PTC), and the C allele of rs2192752 may be a risk factor for the development of PTC in both lobes. PMID: 22594576
  27. These results demonstrate that IL-1alpha and IL-1R1 signaling is essential for microabscess formation, neutrophil recruiting chemokine expression, and acanthosis in psoriasis-like skin inflammation induced by imiquimod. PMID: 23407395
  28. The internalization of IL1RI after IL-1 binding is not a mechanism of feedback inhibition but of critical importance for the IL-1-induced gene expression. PMID: 23022958
  29. Analysis of the data suggested that IL-1R1 expression in the neonatal period provides an additional level of Myd88-dependent signaling during this period of heighted susceptibility to infection. PMID: 22435759
  30. The IL-1R1 1498T>C polymorphism is associated with early-stage endometriosis in Korean women. PMID: 22509941
  31. a genetic link between rs1921622 IL1RL1 polymorphism and disease severity in RSV bronchiolitis PMID: 22574108
  32. This study demonistrated that Carriers of the minor allele for a single nucleotide polymorphism in interleukin (IL)1-receptor 1 (IL1R1) (rs2110726) were less likely to report breast pain prior to surgery PMID: 22515947
  33. the LCAP related changes in sIL-1RI and IL-1Ra might impact the clinical outcome during treatment with an LCAP filter in patients with inflammatory bowel disease PMID: 22267087
  34. No sufficient evidence was available to support any associations between IL1-Ra and IL6-147G/C polymorphisms and ischemic stroke. PMID: 22417897
  35. a role for TILRR in selective amplification of NF-kappaB responses through IL-1RI and suggest that the specificity is determined by changes in receptor conformation and adapter protein recruitment. PMID: 22262840
  36. The study presents the crystal structure of IL-1beta bound to its primary receptor IL-1RI and its receptor accessory protein IL-1RAcP. PMID: 22426547
  37. data demonstrated that IL-1R polymorphism is associated with susceptibility to ankylosing spondylitis PMID: 22285486
  38. regulates S100A8/A9-dependent keratinocyte resistance to bacterial invasion PMID: 22031183
  39. findings demonstrate that neutrophils express IL-1R1 and that IL-1R1 is induced following extravasation and exists in a mobile intracellular compartment PMID: 22385245
  40. Data sshow that variants in SFTPD, CD46 and IL1R1 are associated with IPD in both EA and AA. PMID: 21858107
  41. IL-1RI expression in regulatory T (Treg)cells identifies a subpopulation at an early stage of differentiation. PMID: 21998454
  42. This study found for the first time an epigallocatechin gallate-induced downregulation of the IL-1RI expression possibly being caused by NF-kappaB inhibition. PMID: 21787753
  43. IL-1RI expression was not altered in endometrioid carcinoma cells in comparison with endometrial cells, clear-cells, serous and mucinous ovarian cancer cells. PMID: 21083841
  44. Interleukin-1 receptor-mediated inflammation impairs the heat shock response of human mesothelial cells PMID: 21435443
  45. No association was found between recurrent spontaneous abortion and gene polymorphisms in the interleukin-1 receptor 1 gene. PMID: 20956022
  46. IL1RL1 polymorphisms are associated with serum IL1RL1-a, blood eosinophils, and asthma in childhood PMID: 21281963
  47. Serum levels of ECP, IL-5, -6, -8 and -10, G-CSF, MCP-1, IL-1 ra and IP-10 were significantly elevated in acute compared with stable childhhood asthma. PMID: 20523065
  48. This study indicated that statistically significant higher protein and mRNA levels of the il1r in frontal corte in bipolar disorder. PMID: 19488045
  49. findings that human Tregs preferentially express receptors for TNF and IL-1 suggest a potential function in sensing and dampening local inflammation PMID: 20066156
  50. An association between severe hand osteoarthritis and IL1R1 gene. PMID: 20353565

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Subcellular Location
Membrane; Single-pass type I membrane protein. Cell membrane. Secreted.
Protein Families
Interleukin-1 receptor family
Tissue Specificity
Expressed in T-helper cell subsets. Preferentially expressed in T-helper 1 (Th1) cells.
Database Links

HGNC: 5993

OMIM: 147810

KEGG: hsa:3554

STRING: 9606.ENSP00000233946

UniGene: Hs.701982

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