CD125, also known as IL5RA/IL5R (Interleukin-5 receptor subunit alpha), is a single pass, type I transmembrane glycoprotein of the type I cytokine receptor family, type 5 subfamily.  CD125/IL5RA consists of an extracellular region with 2 fibronectin type III (FN3) domains 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. CD125/IL5RA is expressed on eosinophils and basophils. CD125/IL5RA is a component of the receptor complex specific for interleukin-5. The IL5 receptor complex is a heterodimer of CD125/IL5RA and the common signal transducing subunit CD131/CSF2RB shared by the receptors for interleukin 3 (IL3), colony stimulating factor 2 (CSF2/GM-CSF), and interleukin 5 (IL5). The binding of CD125 to IL5 depends on the beta subunit CD131. The beta subunit CD131 is activated by the ligand binding, and is required for the biological activities of IL5. This protein has been found to interact with syndecan binding protein (syntenin), which is required for IL5 mediated activation of the transcription factor SOX4.

CD125, also known as IL5RA/IL5R (Interleukin-5 receptor subunit alpha), is a single pass, type I transmembrane glycoprotein of the type I cytokine receptor family, type 5 subfamily.  CD125/IL5RA consists of an extracellular region with 2 fibronectin type III (FN3) domains 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. CD125/IL5RA is expressed on eosinophils and basophils. CD125/IL5RA is a component of the receptor complex specific for interleukin-5. The IL5 receptor complex is a heterodimer of CD125/IL5RA and the common signal transducing subunit CD131/CSF2RB shared by the receptors for interleukin 3 (IL3), colony stimulating factor 2 (CSF2/GM-CSF), and interleukin 5 (IL5). The binding of CD125 to IL5 depends on the beta subunit CD131. The beta subunit CD131 is activated by the ligand binding, and is required for the biological activities of IL5. This protein has been found to interact with syndecan binding protein (syntenin), which is required for IL5 mediated activation of the transcription factor SOX4.

Product Details

 

Gene Symbol: IL5RA; IL5R; CD125; CDw125; HSIL5R3

 

NCBI Gene ID: 3568

 

Uniprot Entry: Q01344

 

Construct Details: Full length human IL5RA/CD125 gene is subcloned into the Lentiviral expression vector pLTC with an upstream CMV promoter and with or without a selection marker, which can be used for both transient and stable expression in mammalian cells.  It can be co-transfected with the LentiPAK DNA mix (SKU# LP-001) into HEK293 cells to produce high titer lentiviral particles. Multiple choices of a stable antibiotic selection marker are available.

 

Vector Type: pLTC or pLTC-IRES-Marker (lentiviral expression vector containing a heterologous CMV promoter, see the vector map above)

 

Formulation: Supplied with 10 μg of endotoxin-free plasmid DNA at 200 ng/μl in sterile TE buffer (pH8.0)

 

Gene Insert Size: 1263 (bp)

 

Gene Insert Sequence:  

ATGATCATCGTGGCGCATGTATTACTCATCCTTTTGGGGGCCACTGAGATACTGCAAGCTGACTTACTTC

CTGATGAAAAGATTTCACTTCTCCCACCTGTCAATTTCACCATTAAAGTTACTGGTTTGGCTCAAGTTCT

TTTACAATGGAAACCAAATCCTGATCAAGAGCAAAGGAATGTTAATCTAGAATATCAAGTGAAAATAAAC

GCTCCAAAAGAAGATGACTATGAAACCAGAATCACTGAAAGCAAATGTGTAACCATCCTCCACAAAGGCT

TTTCAGCAAGTGTGCGGACCATCCTGCAGAACGACCACTCACTACTGGCCAGCAGCTGGGCTTCTGCTGA

ACTTCATGCCCCACCAGGGTCTCCTGGAACCTCAATTGTGAATTTAACTTGCACCACAAACACTACAGAA

GACAATTATTCACGTTTAAGGTCATACCAAGTTTCCCTTCACTGCACCTGGCTTGTTGGCACAGATGCCC

CTGAGGACACGCAGTATTTTCTCTACTATAGGTATGGCTCTTGGACTGAAGAATGCCAAGAATACAGCAA

AGACACACTGGGGAGAAATATCGCATGCTGGTTTCCCAGGACTTTTATCCTCAGCAAAGGGCGTGACTGG

CTTGCGGTGCTTGTTAACGGCTCCAGCAAGCACTCTGCTATCAGGCCCTTTGATCAGCTGTTTGCCCTTC

ACGCCATTGATCAAATAAATCCTCCACTGAATGTCACAGCAGAGATTGAAGGAACTCGTCTCTCTATCCA

ATGGGAGAAACCAGTGTCTGCTTTTCCAATCCATTGCTTTGATTATGAAGTAAAAATACACAATACAAGG

AATGGATATTTGCAGATAGAAAAATTGATGACCAATGCATTCATCTCAATAATTGATGATCTTTCTAAGT

ACGATGTTCAAGTGAGAGCAGCAGTGAGCTCCATGTGCAGAGAGGCAGGGCTCTGGAGTGAGTGGAGCCA

ACCTATTTATGTGGGAAATGATGAACACAAGCCCTTGAGAGAGTGGTTTGTCATTGTGATTATGGCAACC

ATCTGCTTCATCTTGTTAATTCTCTCGCTTATCTGTAAAATATGTCATTTATGGATCAAGTTGTTTCCAC

CAATTCCAGCACCAAAAAGTAATATCAAAGATCTCTTTGTAACCACTAACTATGAGAAAGCTGGGTCCAG

TGAGACGGAAATTGAAGTCATCTGTTATATAGAGAAGCCTGGAGTTGAGACCCTGGAGGATTCTGTGTTT

TGA

 

 

Primers: Gene insert coding sequence can be confirmed by following primers:

(a) forward (or 5'-end) primer: 5’-CAAATGGGCGGTAGGCGTG-3’;

(b) reverse (or 3'-end) primer: 5’-CCAGGTTTCCGGGCCCTCAC-3’

 

 

Note: The sequence may vary due to the naturally occurring variants or mutations, such as single nucleotide polymorphism, or the artifact during PCR amplification.  High fidelity PCR systems should always be used. 

 

 

 

 

 

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 66:1175-1184(1991)

2. J. Exp. Med. 175:341-351(1992)

3. Proc. Natl. Acad. Sci. 89:7041-7045(1992) 

 

 

 

 

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.