Name: Human IFN-λ3/IL-28B Recombinant Protein (Human Cells, His Tag)

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

Expression host: HEK293 Cells

Sequence: Val22-Val196

Accesstion: Q8IZI9

Species: Human

Mol_Mass: 20.7 kDa

AP_Mol_Mass: 22 kDa

Tag: C-His

Purity: > 95 % as determined by reducing SDS-PAGE.


Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at

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, pH 7.4.Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.Please refer to the specific buffer information in the p

Reconstitution: Please refer to the printed manual for detailed information.

Background: 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.

MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
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