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Human IL-3 R alpha/CD123 Protein

Product Info

Recombinant Human IL-3 R alpha/CD123 Protein is expressed from Expi293 with His tag at the C-terminal. It contains Thr19-Arg305.[Accession | P26951]

Molecular Weight

The protein has a predicted MW of 33.9 kDa. Due to glycosylation, the protein migrates to 60-70 kDa based on Tris-Bis PAGE result.


Less than 1EU per μg by the LAL method.


> 95% as determined by Tris-Bis PAGE


Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 5 % trehalose is added as protectant before lyophilization.


Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.


The product should be stored at -70℃ or -20℃.

Assay Data
Tris-Bis PAGE

Human IL-3 R alpha on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.


The purity of Human IL-3 R alpha is greater than 95% as determined by SEC-HPLC.


Immobilized Human CD123,His Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Anti-CD123 Antibody.,hFc Tag with the EC50 of 17.5ng/ml determined by ELISA.


Interleukin-3 receptor subunit alpha, also known as IL-3 receptor subunit alpha, IL-3R-alpha, CD123, and IL3RA, is a single-pass type I membrane protein which belongs to the type I cytokine receptor family and Type 5 subfamily.The specific alpha subunit of the interleukin-3 receptor (IL-3Ralpha, CD123) is strongly expressed in various leukemic blasts and leukemic stem cells and seems to be an excellent target for the therapy of leukemias.


CD123 antigen; CD123; hIL3Ra; hIL-3Ra; IL-3 R alpha; IL-3 receptor subunit alpha; IL3R alpha; IL-3R subunit alpha; IL3R; IL3RA; IL-3Ra; IL-3R-alpha; IL3RAY; IL3RX; IL3RY; interleukin 3 receptor, alpha (low affinity); interleukin-3 receptor subunit alpha; MGC34174


(1)Ugo Testa, Elvira Pelosi, Arthur Frankel.CD 123 is a membrane biomarker and a therapeutic target in hematologic malignancies.Biomark Res. 2014; 2: 4

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