IL-28A/IFN-lambda 2 Antibody (884103R) [Unconjugated] Summary
Recombinant Monoclonal Antibody.
Mouse myeloma cell line NS0-derived recombinant human IL-28A/IFN‑ lambda 2
Accession # NP_742150
Detects human IL-28A/IFN‑ lambda 2 in direct ELISAs.
Test in a species/application not listed above to receive a full credit towards a future purchase.
Packaging, Storage & Formulations
|Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Reconstitute at 0.5 mg/mL in sterile PBS.
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for IL-28A/IFN-lambda 2 Antibody (884103R) [Unconjugated]
- IFN-lambda 2
- interferon, lambda 2
IL-28A, IL-28B, and IL-29, also named interferon-lambda 2 (IFN-lambda 2), IFN-lambda 3, and IFN-lambda 1, respectively, are class II cytokine receptor ligands that are distantly related to members of the IL-10 family (11-13% aa sequence identity) and type I IFN family (15-19% aa sequence identity) (1-3). The genes encoding these three cytokines are localized to chromosome 19 and each is composed of multiple exons. The exon organization of these genes is also found in the IL-10 family genes but is distinct from the type I IFNs, which are encoded within a single exon. The expression of IL-28A, B, and IL-29 is induced by virus infection or double-stranded RNA. All three cytokines exert bioactivities that overlap those of type I IFNs, including antiviral activity and up-regulation of MHC class I antigen expression. The three proteins signal through the same heterodimeric receptor complex that is composed of the IL-10 receptor beta (IL-10 R beta ) and a novel IL-28 receptor alpha (IL-28 R alpha, also known as IFN-lambda R1). Ligand binding to the receptor complex induces Jak kinase activation and STAT1 and STAT2 tyrosine phosphorylation. The phosphorylated STAT1 and STAT2 complex with IFN-regulatory factor 9 (IRF-9) to form the IFN-stimulated regulatory factor 3 (ISGF-3) transcription factor complex that is translocated to the nucleus. ISGF-3 binds to the IFN-stimulated response element (ISRE) present in the regulatory regions of the target genes. Human IL-28A cDNA encodes a 200 amino acid (aa) residue precursor protein with a putative 25 aa signal peptide. It shares 94% and 67% aa sequence identity with human IL-28B and human IL-29, respectively.
- Vilcek, J. (2003) Nature Immunol. 4:8.
- Sheppard, P. et al. (2003) Nature Immunol. 4:63.
- Kotenko, S.V. et al. (2003) Nature Immunol. 4:69.
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed
for 1 year from date of receipt.
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