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Human IL1R2 / IL1RB / CD121b Protein (ECD, His Tag)

Sino Biological


A DNA sequence encoding the extracellular domain (Met 1-Glu 343) of human IL1R2 (NP_004624.1) was expressed, with a fused C-terminal polyhistidine tag.


  • Tag: C-His
  • Purity: > 95 % as determined by SDS-PAGE. > 90 % as determined by SEC-HPLC.
  • Source: HEK293 Cells
  • Species: Human
  • Storage: Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
  • Activity: Measured by its ability to inhibit Interferon gamma secretion by human natural killer lymphoma NK-92 cells in the presence of 500pg/mL IL1b. The EC50 for this effect is typically 20-80ng/mL.
  • Molecule: IL1R2
  • Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method
  • Lead Time: 1-3 days
  • Formulation: Lyophilized from sterile PBS, pH 7.4
  • Molecular Mass: The recombinant human IL1R2 consists of 341 amino acids and has a predicted molecular mass of 39.2 kDa. As a result of glycosylation, the rh IL1R2 migrates as an approximately 50-55 kDa band in SDS-PAGE under reducing conditions.
  • Reconstitution: A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
  • Accession Number: NP_004624.1
  • Predicted N Terminal: Phe 14