Active Interleukin 5 Receptor Alpha (IL5Ra)
CDw125; CD125; IL5R-A; IL5-RA; HSIL5R3; IL5R; IL5R-A
- Product No.APB510Hu61
- Organism SpeciesHomo sapiens (Human) Same name, Different species.
- Buffer FormulationPBS, pH7.4, containing 0.01% SKL, 5% Trehalose.
- Traits Freeze-dried powder
- Purity> 80%
- Isoelectric Point5.6
- ApplicationsCell culture; Activity Assays.
- Downloadn/a
- UOM 10µg50µg 200µg 1mg 5mg
- FOB
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For more details, please contact local distributors!
ACTIVITY TEST
Interleukin 5 Receptor Alpha (IL5Ra) is a transmembrane glycoprotein encoded by the IL5RA gene, serving as the specific subunit of the IL-5 receptor complex. Expressed primarily on eosinophils, basophils, and B lymphocytes, it mediates the biological effects of IL-5, a key cytokine in allergic inflammation and eosinophil homeostasis. IL5Ra forms a heterodimer with the common beta chain (βc) to constitute the functional receptor, enabling signal transduction via JAK/STAT pathways. Dysregulation of IL5Ra is linked to eosinophilic disorders, asthma, and allergic diseases, making it a therapeutic target for anti-allergy and anti-inflammatory drugs. IL5 binds specifically to IL5Ra with high affinity, inducing receptor dimerization and activating downstream signaling cascades that promote eosinophil survival and activation. Briefly, IL5 was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 μl were then transferred to IL5Ra-coated microtiter wells and incubated for 1h at 37℃. Wells were washed with PBST and incubated for 1h with anti-IL5 pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37℃, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37℃. Finally, add 50 µL stop solution to the wells and read at 450/630nm immediately.Measured by its binding ability in a functional ELISA. When Recombinant IL5Ra is lmmobilized at 2 µg/mL(100 uLwell), the concentration of IL5 that produces 50% optimal bindingresponse is found to be approximately 0.0930 µg/mL.
USAGE
Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.
STORAGE
Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.
STABILITY
The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.
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