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Recombinant Human IFN-λ3/IL-28B Protein

  • Cat.No.:PKSH033618

  • Expression host: Human Cells

To Purchase PKSH033618

  • 10μg
  • 50μg
Price: $129


Synonyms Interleukin-28B; IL-28B; Cytokine Zcyto22; Interferon Lambda-3; IFN-Lambda-3; Interferon Lambda-4; IFN-Lambda-4; Interleukin-28C; IL-28C; IL28B; IFNL3; IFNL4; IL28C; ZCYTO22; IFN-lambda 3
Species Human
Expression_host Human Cells
Sequence Val22-Val196
Accession Q8IZI9
Mol_Mass 19.6 kDa
AP_Mol_Mass 18 kDa


Purity > 95% as determined by reducing SDS-PAGE.
Endotoxin level < 1.0 EU per μg as determined by the LAL method.
Storage Lyophilized protein should be stored at < -20℃, though stable at room temperature for 3 weeks.Reconstituted protein solution can be stored at 4-7℃ for 2-7 days.Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping This product is provided as lyophilized powder which is shipped with ice packs.
Formulation Lyophilized from a 0.2 μm filtered solution of 20mM PB,150mM NaCl,1mM EDTA,pH7.4.
Reconstitution Please refer to the printed manual for detailed information.


Interleukin-28B, also known as Cytokine Zcyto22, Interferon lambda-3, Interferon lambda-4, IFNL3, IFNL4, ZCYTO22 and IL28B, is a secreted cytokine which belongs to the IL-28/IL-29 family. IL-28 has also been shown to play a role in the adaptive immune response. IL28B has immunomodulatory activity and up-regulates MHC class I antigen expression. IL28B displays potent antiviral activity and antitumor activity. In addition, IL28B is a ligand for the heterodimeric class II cytokine receptor composed of IL10RB and IL28RA. The ligand/receptor complex seems to signal through the Jak-STAT pathway.

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