IL-28A/IFN-lambda 2 Antibody (248512) [Alexa Fluor® 532]

• Reactivity: Hu
• Applications: ELISA(Cap), ELISA(Det)
• Clone: 248512
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Alexa Fluor 532

IL-28A/IFN-lambda 2 Antibody (248512) [Alexa Fluor® 532] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant human IL‑28A/IFN‑λ2
  Val26-Val200
  Accession # Q8IZJ0
• Specificity: Detects human IL‑28A/IFN‑ lambda 2 in ELISAs. In sandwich immunoassays, 3.5% cross-reactivity with human IL-28B/IFN-lambda 3 is observed.
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Purity Statement: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • ELISA Capture (Matched Antibody Pair)
  • ELISA Detection (Matched Antibody Pair)

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

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 (248512) [Alexa Fluor® 532]

• interleukin-28A
• IFN-lambda 2
• IL28A
• IL-28A
• interferon, lambda 2

Background

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.

Limitations

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.