IL9 molecular target information overview


  • Molecular name: IL9, interleukin 9
  • Gene family: Interleukins
  • Alias: IL-9; HP40; P40
  • Alias: p40 T-cell and mast cell growth factor; T-cell growth factor p40; p40 cytokine; homolog of mouse T cell and mast cell growth factor 40

  • Overview of IL9 molecular targets


    Interleukin 9 (IL-9) is a glycosylated protein with a molecular weight of 14 kDa, containing 10 cysteine residues that participate in disulfide bonds. It is a cytokine produced by T cells, especially CD4+ helper cells, and can regulate a variety of hematopoietic cells. This cytokine stimulates cell proliferation and prevents cell apoptosis. It works by binding to the IL-9 receptor and can activate different signal transduction and activation (STAT) proteins, thereby participating in a variety of biological processes. The gene encoding this cytokine has been identified as a candidate gene for asthma. Genetic studies of asthma in mouse models have shown that this cytokine is a determining factor in the pathogenesis of bronchial hyperresponsiveness. The existence of an IL-9-mediated autocrine loop suggests the presence of some malignancies such as Hodgkin's disease. IL-9 is expressed by Reed-Sternberg cells, Hodgkin lymphoma cells, and some large aplastic lymphoma cells, but not by non-Hodgkin lymphomas and peripheral T-cell lymphomas.


    Human IL9 Molecular Target Information


    Molecular name: IL9, interleukin 9


    Alias:

    • cytokine P40
    • homolog of mouse T cell and mast cell growth factor 40
    • HP40
    • IL-9
    • interleukin-9
    • P40
    • p40 cytokine
    • p40 T-cell and mast cell growth factor
    • T-cell growth factor p40

    Gene sequence:NCBI_Gene: 3578

    Protein sequence:UniProtKB: P15248


    Human IL9 target molecular function (prediction)


    Predicted to enable cytokine activity and interleukin-9 receptor binding activity. Predicted to be involved in positive regulation of interleukin-5 production. Predicted to act upstream of or within several processes, including B cell activation; regulation of cellular protein metabolic process; and regulation of receptor signaling pathway via JAK-STAT. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Implicated in asthma and respiratory syncytial virus infectious disease. Biomarker of COVID-19; asthma; cystic fibrosis; lung disease (multiple); and rhinitis.


    Mouse Il9 molecular target information


    Molecular name: Il9, interleukin 9


    Alias:

    • Il-9
    • P40


    Gene sequence:NCBI_Gene: 16198

    Protein sequence:


    Mouse Il9 target molecular function (prediction)


    Enables cytokine activity. Involved in positive regulation of interleukin-5 production. Acts upstream of or within several processes, including B cell activation; regulation of cellular protein metabolic process; and regulation of receptor signaling pathway via JAK-STAT. Located in extracellular space. Is expressed in gut; liver; thymus; and thymus primordium. Human ortholog(s) of this gene implicated in asthma and respiratory syncytial virus infectious disease. Orthologous to human IL9 (interleukin 9).


    Rat Il9 molecular target information


    Molecular name: Il9, interleukin 9

    Alias:

    • interleukin-9

    Gene sequence:NCBI_Gene: 116558

    Protein sequence:UniProtKB: D4A8I9


    Rat Il9 target molecular function (prediction)


    Enables cytokine activity and interleukin-9 receptor binding activity. Involved in positive regulation of cell growth. Predicted to be active in extracellular space. Human ortholog(s) of this gene implicated in asthma and respiratory syncytial virus infectious disease. Orthologous to human IL9 (interleukin 9).

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