CD123, also known as IL3RA/IL3R (Interleukin-3 receptor subunit alpha), is a single pass, type I transmembrane glycoprotein of the type I cytokine receptor family, type 5 subfamily.  CD123/IL3RA consists of an extracellular region and a juxtamembrane WSXWS motif, a transmembrane domain, and a cytoplasmic tail with the box 1 motif.  The WSXWS motif is necessary for proper protein folding and efficient intracellular transport and cell-surface receptor binding, while the box 1 motif is required for JAK interaction/activation. CD123/IL3RA is a component of the receptor complex specific for IL3. The IL3 receptor complex is a heterodimer of CD123/IL3RA and the common signal transducing subunit CD131/CSF2RB shared by the receptors for IL3, colony stimulating factor 2 (CSF2/GM-CSF), and IL5. The binding of CD123/IL3RA to IL3 depends on the beta subunit CD131. The beta subunit CD131 is activated by the ligand binding, and is required for the biological activities of IL3. This gene and the gene encoding the colony stimulating factor 2 receptor alpha chain (CSF2RA/CD116) form a cytokine receptor gene cluster in a X-Y pseudoautosomal region on chromosomes X or Y.

CD123, also known as IL3RA/IL3R (Interleukin-3 receptor subunit alpha), is a single pass, type I transmembrane glycoprotein of the type I cytokine receptor family, type 5 subfamily.  CD123/IL3RA consists of an extracellular region and a juxtamembrane WSXWS motif, a transmembrane domain, and a cytoplasmic tail with the box 1 motif.  The WSXWS motif is necessary for proper protein folding and efficient intracellular transport and cell-surface receptor binding, while the box 1 motif is required for JAK interaction/activation. CD123/IL3RA is a component of the receptor complex specific for IL3. The IL3 receptor complex is a heterodimer of CD123/IL3RA and the common signal transducing subunit CD131/CSF2RB shared by the receptors for IL3, colony stimulating factor 2 (CSF2/GM-CSF), and IL5. The binding of CD123/IL3RA to IL3 depends on the beta subunit CD131. The beta subunit CD131 is activated by the ligand binding, and is required for the biological activities of IL3. This gene and the gene encoding the colony stimulating factor 2 receptor alpha chain (CSF2RA/CD116) form a cytokine receptor gene cluster in a X-Y pseudoautosomal region on chromosomes X or Y.

Product Details

 

Gene Symbol: IL3RA; IL3R; CD123; IL3RX; IL3RY; IL3RAY; hIL-3Ra

 

NCBI Gene ID: 3563

 

Uniprot Entry: P26951

 

Construct Details: Expressed as the combination of a heavy chain (HC) containing VH from anti-human CD123/IL3RA mAb and CH1-3 region of human IgG1 and a light chain (LC) encoding VL from anti-human CD123/IL3RA mAb and CL of human kappa light chain.  Exists as a disulfide linked dimer of the HC and LC hetero-dimer under non-reducing condition.

 

Source: Mammalian cells stably expressing anti-CD123 heavy chain and light chain (in human IgG1,kappa format) and growing in chemical-defined media with no animal components or antibiotics. 

 

M.W.: Calculated molecular mass (kDa): 146 (49 kDa for a single HC, 24 kDa for a single LC); Estimated by SDS-PAGE under reducing condition(kDa): 50 kDa + 25 kDa.

 

Purity: >95% judged by SDS-PAGE under reducing condition (see the gel image above, labeled as "S")

 

Formulation: Supplied at 0.5 mg/ml in sterile PBS pH7.4 (carrier & preservative free).  

 

Endotoxin Level: <0.1 EU per 1 μg of purified recombinant protein determined by the LAL method

 

Biological Activity: Binds human CD123/IL3RA protein (SKU#FCL3838 & #FCL3839) with high affinity and recognizes surface CD123/IL3RA on human cells by flow cytometry, IHC staining and fluorescent microscopy

 

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.

 

Storage

 

The product is shipped at 4°C. Upon receipt, centrifuge the product briefly before opening the vial. It is recommended to store small aliquots at the temperature below –20°C for long-term storage and the product is stable for 6 months. 

 

 

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

 

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

 

References

 

1. Cell 66:1165-1174(1991)

2. Biochem. Biophys. Res. Commun. 208:360-367(1995) 

3. J. Biol. Chem. 284:5763-5773(2009)

 

 

 

 

Additional supporting documents, including PDS, COA and MSDS are available upon request.

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.