Active Recombinant Human IL4R protein, His-tagged

• Cat.No.: IL4R-587H
• Product Overview: Recombinant Human IL4R protein (Met 1-His 232), fused to His tag at C-terminus, was expressed in human 293 cells (HEK293).

Specification

• Species: Human
• Source: HEK293
• Tag: His
• Protein Length: Met 1-His 232
• Form: Lyophilized from sterile PBS, pH 7.4
• Bio-activity: 1. Measured by its binding ability in a functional ELISA. Immobilized human IL4R-His at 10 μg/mL (100 μl/well) can bind biotinylated human IL4. The EC50 of biotinylated human IL4 is 20.8-48.5 ng/mL.
  2. Measured by its ability to inhibit IL-4 dependent proliferation of TF-1 human erthroleukemic cells. The ED50 for this effect is 2-10 ng/mL in the presence of 0.2 ng/ml IL-4.
• Molecular Mass: The secreted recombinant human IL4R consists of 218 amino acids after cleavage of the signal peptide and predictes a molecular mass of 25.18 kDa. In SDS-PAGE under reducing conditions, it migrates with the apparent molecular mass of 43-48 kDa due to glycosylation.
• Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method
• Purity: > 98 % as determined by SDS-PAGE
• Storage: Samples are stable for up to twelve months from date of receipt at -20°C to -80°C
  Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.

Gene Information

• Gene Name: IL4R interleukin 4 receptor [ Homo sapiens ]
• Official Symbol: IL4R
• Synonyms: IL4R; interleukin 4 receptor; interleukin-4 receptor subunit alpha; CD124; IL-4 receptor subunit alpha; interleukin-4 receptor alpha chain; IL4RA; IL-4RA
• Gene ID: 3566
• mRNA Refseq: NM_000418
• Protein Refseq: NP_000409
• MIM: 147781
• UniProt ID: P24394