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Human IL-29 / Interleukin-29 Protein (His Tag)

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Human IL29 Protein Product Information
Synonym:IFNL1, IL-29
Protein Construction:A DNA sequence encoding the human IL29 (NP_742152.1) (Met 1-Thr 200) was fused with a polyhistidine tag at the C-terminus.
Expressed Host:Human Cells
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human IL29 Protein QC Testing
Purity:> 92 % as determined by SDS-PAGE
Bio-Activity:Measured in antiviral assays using HepG2 cells infected with vesicular stomatitisvirus (VSV).
The ED50 for this effect is typically 4-20 ng/ml.
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Gly 20
Molecule Mass:The recombinant human IL29 consists of 192 amino acids and has a predicted molecular mass of 21.4 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rh IL29 is approximately 30-35 kDa due to glycosylation.
Formulation:Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human IL29 Protein Usage Guide
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.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human IL29 Protein SDS-PAGE
Human IL-29 / Interleukin-29 Protein (His Tag) SDS-PAGE
Human IL-29 / Interleukin-29 Protein (His Tag) SDS-PAGE
Other IL29 Recombinant Protein Products
IL-29 Background

Interleukin-29(IL-29), also known as cytokine Zcyto21, Interferon lambda-1, IFN-lambda-1, and IFNL1, is a secreted protein which belongs to the IL-28 / IL-29 family. IL-29 is a cytokine with immunomodulatory activity. IL-29 is highly similar in amino acid sequence to the IL-28. IL-28 and IL-29 are induced by viral infection and showed antiviral activity. IL-28 and IL-29 interacted with a heterodimeric class II cytokine receptor that consisted of IL-10 receptor beta (IL-10Rbeta) and an orphan class II receptor chain, designated IL-28Ralpha. IL-29 plays an important role in host defenses against microbes and its gene is highly upregulated in cells infected with viruses. IL-29 may play a role in antiviral immunity. IL-29 up-regulates MHC class I antigen expression. It 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.

Human IL-29 References
  • Li MC, et al. (2006) Liposome-mediated IL-28 and IL-29 expression in A549 cells and anti-viral effect of IL-28 and IL-29 on WISH cells. Acta Pharmacol Sin. 27(4): 453-9.
  • Wang J, et al. (2009) Differentiated human alveolar type II cells secrete antiviral IL-29 (IFN-lambda 1) in response to influenza A infection. J Immunol. 182(3): 1296-304.
  • Jordan WJ, et al. (2007) Modulation of the human cytokine response by interferon lambda-1 (IFN-lambda1/IL-29). Genes Immun. 8(1): 13-20.
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    Catalog: 12339-H08H-5
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