RecombinantIL-5Rα, Human
Interleukin-5 Receptor Alpha (IL-5RA), also known as CD125, belongs to the Type 5 subfamily in the type I cytokine receptor family. It is composed of a ligand-specific alpha subunit and a signal-transducing beta subunit shared by the receptors for IL-3 and GM-CSF. IL-5RA is mainly expressed on eosinophils and basophils, and plays important roles in the immunobiology of these cell types. It is reported that when stimulated by IL-5, eosinophils down-regulate surface IL-5RA expression to attenuate their IL-5 responsiveness. Elevated IL-5 production may induce immune cell infiltration which leads to allergic inflammation. IL-5RA has also been reported to promote the differentiation of basophils and B cells.
Product Specifications
Product Name Alternative
IL-5RA, CD125
Source
CHO
Endotoxin
< 0.2 EU/μg, determined by LAL method.
Purity
> 95% as analyzed by SDS-PAGE and HPLC.
Bioactivity
ED50 < 0.2 ng/ml, measured in a cell proliferation assay using TF-1 cells in the presence of 1 ng/ml human IL-5.
Form
Lyophilized after extensive dialysis against PBS.
Molecular Weight
53-56 kDa, observed by reducing SDS-PAGE.
Storage Conditions
Notes
For research use only.
Applications Notes
Reconstituted in ddH2O or PBS at 100 μg/ml.
Preservative
Lyophilized after extensive dialysis against PBS.
AA Sequence
Available Sizes
Frequently Asked Questions
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