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IL-9 Mouse anti-Human, Brilliant Violet 421, Clone: MH9A3, BD

Mouse Monoclonal Antibody

Manufacturer:  BD Biosciences 564254

Catalog No. BDB564254

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The MH9A3 monoclonal antibody specifically binds to human interleukin-9 (IL-9). Human IL-9 is a multifunctional cytokine and a member of the type I cytokine (hematopoietin) family that includes IL-2, IL-4, IL-7, IL-15 and IL-21. This cytokine is encoded by the IL9 gene that is resident on chromosome 5q31.1. IL-9 is expressed by activated CD4-positive T helper cells, by some transformed T cells and by eosinophils, mast cells and neutrophils. IL-9 induces the proliferation, differentiation, and effector function of various cell types including T lymphocytes, B lymphocytes, mast cells, eosinophils, neutrophils, hematopoietic cells and epithelial cells. It potentiates the interleukin-4-induced IgM, IgG and IgE responses by human B lymphocytes. IL-9 has been implicated in human allergic disorders such as asthma and malignancies such as Hodgkin’s disease. IL-9 exerts its biological activities through binding to the surface IL-9 receptor (IL-9R) complex comprised of the IL-9R alpha subunit (IL-9R α ; CD129) and the common cytokine receptor gamma subunit ( γc; CD132). IL-9 signaling through its receptor includes activation of the Janus kinases 1 and 3 ( JAK1 and JAK3) and activation of Signal transducer and activator of transcription 1, 3 and 5 factors (STAT1, STAT3 and STAT5).



IL9; IL-9; interleukin-9; HP40; P40
Affinity Purified
Human IL-9 Recombinant Protein
100 Tests
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Flow Cytometry
Brilliant Violet 421
Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
IgG1, κ
Product Certifications


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