Phospho-IL10RA (Ser319/323) Antibody

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Description

Introduction

The Phospho-IL10RA (Ser319/323) Antibody is a research tool designed to detect the phosphorylated form of the interleukin-10 receptor alpha (IL10RA) subunit at serine residues 319 and 323. This antibody is critical for studying IL10RA signaling, receptor stability, and its role in immune regulation. IL10RA is a component of the IL-10 receptor complex, which mediates anti-inflammatory cytokine signaling . Phosphorylation of IL10RA at these residues has been implicated in receptor ubiquitination and degradation, modulating IL-10 signaling pathways .

Molecular Mechanism of Phospho-IL10RA (Ser319/323)

Phosphorylation of IL10RA at Ser319/323 is a regulatory mechanism that promotes receptor degradation via the ubiquitin-proteasome system. This process involves the recruitment of β-TrCP2, an E3 ubiquitin ligase, which binds to phosphorylated IL10RA and facilitates its ubiquitination . The phosphorylation-dependent degradation of IL10RA reduces the availability of functional IL-10 receptors on immune cells, thereby impairing IL-10-mediated anti-inflammatory responses .

Molecular FeatureDescription
Target SiteSerine 319 and 323
Post-Translational ModificationPhosphorylation
Downstream EffectReceptor ubiquitination and degradation
Pathway ImpactReduced IL-10 signaling, increased pro-inflammatory responses

4.1. Role in IL-10 Signaling

IL10RA phosphorylation at Ser319/323 is a critical regulatory step in IL-10 receptor stability. Studies using this antibody demonstrated that:

  • Phosphorylation-dependent degradation of IL10RA reduces IL-10-mediated suppression of pro-inflammatory cytokines (e.g., TNF-α, IFN-γ) .

  • Mutations in IL10RA (e.g., c.301C>T, p.R101W) linked to early-onset IBD disrupt phosphorylation-dependent receptor degradation, leading to hyper-inflammatory states .

4.2. Disease Implications

The antibody has been used to study IL10RA phosphorylation in:

  • Inflammatory Bowel Disease (IBD): Patients with IL10RA mutations exhibit impaired phosphorylation and receptor degradation, contributing to treatment-resistant colitis .

  • Tumor Microenvironment: Reduced IL10RA phosphorylation in macrophages correlates with enhanced tumor growth due to suppressed anti-tumor immunity .

Applications

The antibody is employed in:

  • Western blotting to detect phosphorylated IL10RA in lysates from immune cells (e.g., macrophages, dendritic cells).

  • Immunoprecipitation to study receptor-protein interactions (e.g., β-TrCP2 binding) .

  • Pathological studies to assess IL10RA phosphorylation in tissues from IBD patients .

Product Specs

Form
Supplied at 1.0 mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150 mM NaCl, 0.02% sodium azide and 50% glycerol.
Lead Time
Typically, we are able to dispatch products within 1-3 business days of receiving your order. Delivery timelines may vary depending on the purchasing method or location. We recommend contacting your local distributor for specific delivery estimates.
Synonyms
CD210 antibody; CDw210a antibody; CDw210a antigen antibody; HIL 10R antibody; HIL10R antibody; I10R1_HUMAN antibody; IL 10R 1 antibody; IL 10R A antibody; IL 10R antibody; IL 10R1 antibody; IL-10 receptor subunit alpha antibody; IL-10R subunit 1 antibody; IL-10R subunit alpha antibody; IL-10R1 antibody; IL-10RA antibody; IL10R antibody; IL10R1 antibody; IL10RA antibody; Interleukin 10 receptor alpha antibody; Interleukin 10 receptor alpha chain antibody; Interleukin-10 receptor subunit 1 antibody; Interleukin-10 receptor subunit alpha antibody
Target Names
Uniprot No.

Target Background

Function
IL10RA, a cell surface receptor for the cytokine IL10, plays a crucial role in IL10-mediated anti-inflammatory responses. It effectively limits excessive tissue damage caused by inflammation. Upon binding to IL10, IL10RA undergoes a conformational change, enabling it to bind to IL10RB as well. This interaction results in the formation of a heterotetrameric complex, consisting of two IL10RA and two IL10RB subunits. This complex activates the kinases JAK1 and TYK2, which are constitutively associated with IL10RA and IL10RB, respectively. These kinases then phosphorylate specific tyrosine residues within the intracellular domain of IL10RA, leading to the recruitment and subsequent phosphorylation of STAT3. Once phosphorylated, STAT3 forms homodimers, translocates to the nucleus, and activates the expression of anti-inflammatory genes. Notably, IL10RA-mediated activation of STAT3 also inhibits starvation-induced autophagy.
Gene References Into Functions
  1. This case report and case-control study delves into the role of IL10RA and its deficiency in the development of the immune system and inflammatory bowel diseases. PMID: 28644354
  2. We identified 32 compound heterozygous mutations and 9 homozygous mutations in IL10 receptor subunit alpha and 1 homozygous mutation in IL10 receptor subunit beta. Among these mutations, 10 novel mutations were identified, and 6 pathogenic mutations had been previously described. In patients with IL10 receptor subunit alpha mutations, c.301C>T (p.R101RW) and c.537 G>A (p.T179T) were the most common mutations. PMID: 28267044
  3. These findings provide a novel mechanism by which microbial-derived butyrate promotes barrier integrity through IL-10RA-dependent repression of claudin-2. PMID: 28893958
  4. Expression of IL10R subunits within the leukocyte population (CD45(+) cells) was significantly higher in primary brain tumors than in metastases. PMID: 28982901
  5. This study revealed no association between schizophrenia and IL10 and IL10RA single polymorphisms and haplotypes. PMID: 27397081
  6. The IL-10RA rs9610 A allele was found to be more frequent in rheumatoid arthritis (RA) patients compared to control subjects. Notably, significant differences were observed in both the allele and genotype frequencies of rs9610 between anti-CCP (anti-cyclic citrullinated peptide) positive patients and anti-CCP negative patients. These findings suggest that the IL-10RA rs9610 polymorphism might contribute to RA susceptibility. PMID: 27796662
  7. These results indicate that the S138G loss-of-function polymorphism of the IL-10R1 receptor may be a significant risk factor for increased susceptibility to multiple sclerosis. PMID: 28225209
  8. The study elucidates the structure of box1 from class II cytokine receptors IFNLR1 and IL10RA bound to the FERM-SH2 domain of human JAK1, identifying a consensus motif for JAK1 interaction. PMID: 27133025
  9. A JAK2 inhibitor effectively suppressed a BCL6-dependent IL10RA/JAK2/STAT3 pathway in high-grade B-cell lymphoma. PMID: 27268052
  10. This genetic association study conducted in a cohort of infants/children suggests that perianal fistulas are observed in patients with very early-onset inflammatory bowel disease characterized by IL10 receptor mutations (IL10RA/B). The prognosis and response to treatment are generally poor in these cases. PMID: 25373860
  11. IL-10Ralpha expression is post-transcriptionally regulated by miR-15a, miR-185, and miR-211 in melanoma. PMID: 26631117
  12. The SNP3 polymorphism is associated with myocardial infarction. It is hypothesized that this polymorphism might induce conformational rearrangements within the IL-10R1 receptor domain, affecting IL-10 complex binding and altering downstream signaling. PMID: 24566517
  13. High IL10RA expression is linked to diffuse large B-cell lymphoma. PMID: 25733167
  14. Inflammatory bowel disease (IBD) in infancy is a distinct disease entity from adult-onset or older child-onset IBD, both phenotypically and genetically. It demonstrates a strong association with the IL-10 receptor gene. PMID: 24785691
  15. The IL10R1 loss-of-function A536/S138G polymorphism may contribute to the pathogenesis of recurrent pregnancy loss. PMID: 24689510
  16. Very early onset inflammatory bowel disease associated with aberrant trafficking of IL-10R1 has been successfully treated through T cell replete haploidentical bone marrow transplantation. PMID: 24519095
  17. Mutations in the IL10RA gene are associated with ulcerative colitis. PMID: 24216686
  18. A case report highlights a pediatric patient with ulcerative colitis carrying a novel point mutation within the IL10RA promoter (the -413G->T), inherited from his mother. PMID: 24379584
  19. This report provides further evidence of the genetic defect of IL-10RA in neonatal-onset inflammatory bowel disease. PMID: 23839161
  20. IFN-gamma selectively induced the expression of IL-10R1 on intestinal epithelia, predominantly on the apical membrane of polarized epithelial cells. PMID: 24367025
  21. A mutation in TLR4 (rs4986790) and IL10RA (rs22291130) was significantly associated with Mycobacterium avium subspecies paratuberculosis-positive Crohn's disease patients. PMID: 23455702
  22. Five patients with an IL-10R1 or IL-10R2 deficiency developed B-cell non-Hodgkin lymphoma between the ages of 5 and 6 years (with one patient experiencing recurrence). PMID: 24089328
  23. IL10RA polymorphisms are associated with ulcerative colitis. PMID: 22550014
  24. In the Chinese Han population, missense SNPs within the exons of the IL-10R1 gene do not appear to contribute to the development of systemic lupus erythematosus. PMID: 22652629
  25. The results suggest that genetic polymorphisms in TNF and IL10RA genes may influence the association between blood transfusion and NHL risk. PMID: 22649007
  26. IL-10R1 is a novel substrate of betaTrCP-containing ubiquitin E3 ligase, representing a novel negative regulatory mechanism that may potentially affect IL-10 function. PMID: 22087322
  27. We identified an IL10R variant in one patient, potentially associated with a decreased response to the cytokine. PMID: 22155628
  28. The IL-10R1 S138G loss-of-function polymorphism is associated with the development of extrapulmonary tuberculosis risk in Tunisia. PMID: 21553229
  29. The haplotype -185/-116 of IL10 receptor alpha in combination with the haplotype -754/-750 of IL10 receptor beta contributed towards mild malaria. PMID: 21814839
  30. IL10R1-G330R does not alter surface expression but influences the duration of STAT phosphorylation, suggesting that the position of G330 plays a role in stabilizing the STAT signal. PMID: 21654841
  31. Linkage disequilibrium (LD) blocks were formed in IL10 and IL10RA. PMID: 21532858
  32. IL-10R1 expression on CD4+ T cells and signaling in PBMCs were down-regulated in lupus nephritis (LN) patients, indicating a potential role for IL-10 and its receptor in the pathogenesis of LN. PMID: 21635228
  33. In addition to overall immune health, host genetic factors influence mortality, retinitis progression, and retinal detachment in patients with AIDS and CMV retinitis receiving HAART. PMID: 21396623
  34. In the Lebanese population, the loss-of-function allele IL-10R1-S138G (SNP3) is unlikely to provide protection against ulcerative colitis, and both IL-10R1 variants do not correlate with inflammatory bowel disease. PMID: 20186944
  35. Individuals carrying the G allele for the -536AG IL-10R1 gene polymorphism exhibited higher systolic and diastolic pressures and IL-10 levels. Additionally, obese individuals carrying the G allele showed an increased waist-to-hip ratio. PMID: 19798061
  36. CMV IL-10 forms a disulfide-linked homodimer that binds two sIL-10R1 molecules. PMID: 12093920
  37. IL-10 receptor stimulation triggered the rapid translocation of IL-10E1 to the cell nucleus and the activation of TIMP-1 expression in primary human prostate tumor cell lines. PMID: 12496489
  38. Abnormal interleukin 10Ralpha expression contributes to the maintenance of elevated cyclooxygenase-2 in non-small cell lung cancer cells. PMID: 12591723
  39. This investigation revealed three previously unidentified polymorphisms of IL-10R1 (SNP3, SNP4, and SNP5), two of which result in an amino acid substitution. The substitution in the S138G variant may interfere with the binding of IL-10 to IL-10R1. PMID: 12759436
  40. Homozygosity of the IL-10R1 G330R allele is associated with schizophrenia and may contribute to the expression of the disease phenotype in susceptible individuals. PMID: 17066477
  41. Genetic variation in IL-10RA/IL-22 genes may play a modulatory role in the outcome of hepatitis C infection. PMID: 17845543
  42. The IL-4R Ile50/Ile50 and IL-10R2 G520/G520 and G520/A520 genotypes were found to determine the susceptibility to SLE (systemic lupus erythematosus) in a Chinese population. PMID: 17988330
  43. The peripheral blood neutrophils of septic patients constitutively display abundant levels of surface IL-10R1. PMID: 18308712
  44. IL-10R is associated with the progression of renal cell carcinoma. PMID: 18344594
  45. Data demonstrate a significant relationship between cervical concentrations of IL-10 and single nucleotide polymorphisms in the IL-10 receptor alpha and beta genes. PMID: 18674658
  46. The IL-10R1 S138G loss-of-function allele and ulcerative colitis have been reported. PMID: 18800073
  47. A variant rs17121510 in the interleukin-10 receptor antagonist (IL-10RA) gene for allele (p = 0.01) and genotype (p = 3.34x10(-4)) may play a role in preterm birth. PMID: 18818748
  48. IL-10R1 variants differentially reduce the signaling activity of cmvIL-10. PMID: 19016528
  49. Mutations in genes encoding the IL10R subunit proteins were found in patients with early-onset enterocolitis, involving hyperinflammatory immune responses in the intestine. PMID: 19890111
  50. The capacity of neutrophils to respond to IL-10, as measured by Stat3 tyrosine phosphorylation, SOCS-3 expression, and modulation of cytokine production, is dependent on the level of IL-10R1 expression. PMID: 11490020

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Database Links

HGNC: 5964

OMIM: 146933

KEGG: hsa:3587

STRING: 9606.ENSP00000227752

UniGene: Hs.504035

Involvement In Disease
Inflammatory bowel disease 28 (IBD28)
Protein Families
Type II cytokine receptor family
Subcellular Location
Cell membrane; Single-pass type I membrane protein. Cytoplasm.
Tissue Specificity
Primarily expressed in hematopoetic cells including B-cells, T-cells, NK cells, monocytes and macrophages. Not expressed in non-hematopoetic cells such as fibroblasts or endothelial cells.

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