Human IL-29/IFN-lambda 1 ELISA Kit (Colorimetric) Summary
Description
The human IL-29 ELISA is an enzyme-linked immunosorbent assay for the quantitative detection of human IL-29
Specificity
The assay detects both natural and recombinant human IL-29/IFNlambda 1. The cross-reactivity and interference of circulating factors of the immune system was evaluated by spiking these proteins at physiologically relevant concentrations into a human IL-29/IFNlambda 1 positive sample. There was no cross-reactivity or interference detected.
Standard Curve Range
15.6 - 1,000 pg/mL
Sensitivity
2.0 pg/mL
Assay Type
Sandwich ELISA
Inter-Assay
CV% < 7.1%
Intra-Assay
CV% < 7.6%
Spike Recovery
Please See Protocol for Specific Spike Recovery Details
Human IL-29 Standard lyophilized, 2 ng/ml upon reconstitution
Sample Diluent
Stop Solution (1M Phosphoric acid)
Streptavidin-HRP
Substrate Solution (tetramethyl-benzidine)
Wash Buffer Concentrate 20x (PBS with 1% Tween 20)
Alternate Names for Human IL-29/IFN-lambda 1 ELISA Kit (Colorimetric)
cytokine Zcyto21
IFNL1
IFN-lambda 1
IFN-lambda-1
IL29
IL-29
interferon lambda-1
interferon, lambda 1
interleukin 29 (interferon, lambda 1)
interleukin-29
ZCYTO21
Background
IL-29 is a protein of the helical cytokine family and is a type III interferon sharing many functions with the type I family of interferons. The IL-29 gene is found on chromosome 19 in humans. It is also known as IFN-lambda1 and is highly similar in amino acid sequence to the IL-28, the other type III interferon. IL-29 does not bind the IFN-alpha/beta receptor, but instead signals through a receptor composed of the IL-28R1 and IL-10R2 subunits. Initial characterizations of the receptor demonstrated that it has a ubiquitous tissue distribution and is expressed on most non-hematopoietic cells. Generation of native IL-29 is achieved by monocytes and dendritic cells in response to viral infection and stimulation with toll-like receptor ligands. IL-29 plays an important role in host defenses against microbes and its gene is highly upregulated in cells infected with viruses. IL 29 has significant antiviral activity and immunoregulatory properties and appears to inhibit T helper-2 (Th2) responses regarding inhibition of IL-13 production, compared with IL-4 or IL-5. The antiviral activities of IL-29 include the upregulation of MHC Class I expression on the cell surface and the expression of PKR. The ligand/receptor complex seems to signal through the Jak-STAT pathway.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. ELISA Kits are guaranteed for 6 months from date of receipt.
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