Human IL-9 Antibody

Catalog #: MAB209 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB209
MAB209-SP

Detection of IL‑9 in Human PBMCs by Flow Cytometry.

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Human IL-9 Antibody Summary

Species Reactivity

Human

Specificity

Detects human IL-9 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant rat IL-9 or recombinant mouse IL-9 is observed.

Source

Monoclonal Mouse IgG_2B Clone # 623153

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-9
Gln19-Ile144
Accession # P15248

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Intracellular Staining by Flow Cytometry

2.5 µg/10⁶ cells

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Intracellular Staining by Flow Cytometry

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Detection of IL‑9 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) were treated with plate-bound anti-CD3 Monoclonal Antibody (5 μg/ml) and anti-CD28 Monoclonal Antibody (2 μg/ml), Recombinant Human IL-4 (204-IL,10 ng/ml), and anti-Human IFN-gamma Monoclonal Antibody (AF-285-NA, 20 μg/ml) for 5 days and stained with (A) Mouse Anti-Human IL-9 Monoclonal Antibody (Catalog # MAB209) or (B) Mouse IgG2B Isotype Control Antibody (MAB0041) followed by Allophycocyanin-conjugated anti-Mouse IgG Secondary Antibody (F0101B) and Mouse Anti-Human IFN-gamma Phycoerythrin-conjugated Monoclonal Antibody (IC285P). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (FC005). Staining was performed using our Staining Intracellular Molecules protocol.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IL-9

Interleukin-9 (IL-9) is a 14 kDa glycosylated cytokine that is secreted by CD4⁺ Th2 cells. It supports the growth of multiple hematopoietic cell types including Th cells, germinal center B cells, macrophages, mast cells, neutrophils, megakaryocytes, and erythrocytes. IL-9 exerts its biological effects through a receptor complex composed of IL-9 R and the common gamma chain. Mature human IL-9 shares 57% amino acid sequence identity with mouse and rat IL-9.

Long Name

Interleukin 9

Entrez Gene IDs

3578 (Human); 16198 (Mouse)

Alternate Names

Cytokine P40; HP40; IL9; IL-9; IL-9homolog of mouse T cell and mast cell growth factor 40; interleukin 9; interleukin-9; p40 cytokine; p40 T-cell and mast cell growth factor; P40; T-cell growth factor P40