Human iNOS ELISA Kit is a single-wash 90-min SimpleStep ELISA® for the quantitative measurement of Human iNOS in Cell Lysate samples.
Colorimetric
Cell Lysate
Sandwich (quantitative)
Human
46.88 - 3000 pg/mL
1h 30m
= 18 pg/mL
Application | Reactivity | Dilution info | Notes |
---|---|---|---|
Application sELISA | Reactivity Reacts | Dilution info - | Notes - |
Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body (PubMed:7504305, PubMed:7531687, PubMed:7544004, PubMed:7682706). In macrophages, NO mediates tumoricidal and bactericidal actions. Also has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such PTGS2/COX2 (By similarity). As component of the iNOS-S100A8/9 transnitrosylase complex involved in the selective inflammatory stimulus-dependent S-nitrosylation of GAPDH on 'Cys-247' implicated in regulation of the GAIT complex activity and probably multiple targets including ANXA5, EZR, MSN and VIM (PubMed:25417112). Involved in inflammation, enhances the synthesis of pro-inflammatory mediators such as IL6 and IL8 (PubMed:19688109).
NOS2A, NOS2, NOS2A, Hepatocyte NOS, Inducible NO synthase, NOS type II, Peptidyl-cysteine S-nitrosylase NOS2, HEP-NOS, Inducible NOS, iNOS
Human iNOS ELISA Kit is a single-wash 90-min SimpleStep ELISA® for the quantitative measurement of Human iNOS in Cell Lysate samples.
Colorimetric
Cell Lysate
Sandwich (quantitative)
Human
46.88 - 3000 pg/mL
1h 30m
Pre-coated microplate (12 x 8 well strips)
= 18 pg/mL
Sample | n | mean | SD | C.V. |
---|---|---|---|---|
Sample Extract | n 8 | mean - | SD - | C.V. 3.3 |
Sample type | Average % | Range |
---|---|---|
Sample type Cell Lysate | Average % = 95 | Range |
Blue Ice
+4°C
+4°C
+4°C
Human iNOS ELISA Kit (ab253217) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of iNOS protein in cell lysate. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human iNOS with 18 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
- Single-wash protocol reduces assay time to 90 minutes or less
- High sensitivity, specificity and reproducibility from superior antibodies
- Fully validated in biological samples
- 96-wells plate breakable into 12 x 8 wells strips
A 384-well SimpleStep ELISA® microplate (Pre-coated 384 well Microplate SimpleStep ELISA® ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
iNOS, also known as NOS2, catalyzes the production of nitric oxide from L-arginine, which is used in various cell signaling events. iNOS is an inducible member of the NOS family and is upregulated as a host-defense mechanism during proinflammatory cytokine activity seen with tumorigenesis and parasitic infection. iNOS activity is a key cause of septic shock.
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This supplementary information is collated from multiple sources and compiled automatically.
Inducible Nitric Oxide Synthase commonly referred to as iNOS or NOS2 is an important enzyme in the production of nitric oxide (NO) from L-arginine. This enzyme has a molecular weight of approximately 130 kDa and is expressed in various cell types including macrophages and hepatocytes. iNOS becomes active in response to inflammatory stimuli and can produce large amounts of NO for extended periods. Western blotting and iNOS ELISA kits are frequently used methods to detect and quantify the presence and activity of iNOS in different biological samples.
INOS plays a significant role in the immune system by participating in the defense against pathogens. The enzyme is part of a molecular complex that generates NO which acts as a signaling molecule and has antimicrobial properties. iNOS activity is induced during immune responses and contributes to the elimination of bacteria and viruses through the production of reactive nitrogen species. Its expression is tightly regulated by cytokines and other signaling molecules that modulate the extent of its action.
INOS integrates into the nitric oxide signaling pathway and is closely associated with inflammatory pathways. NO serves as a messenger within the nitric oxide signaling pathway facilitating processes like vasodilation and neurotransmission. iNOS works alongside other proteins such as cytokines like interferon-gamma that elevate its activity during inflammation and immune responses. The regulation of iNOS expression and activity plays an essential role in maintaining immune homeostasis and ensuring proper response to infections.
INOS is linked to conditions characterized by excessive inflammation such as rheumatoid arthritis and sepsis. In these diseases overproduction of nitric oxide by iNOS can lead to tissue damage and exacerbate symptoms. Additionally iNOS is associated with the protein TNF-alpha as its expression is often driven by inflammatory mediators during disease states. Understanding the role of iNOS in such conditions provides insights into potential therapeutic targets for managing inflammatory diseases.
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Example of human iNOS standard curve in 1X Cell Extraction Buffer PTR.
The iNOS standard curve was prepared as described in Section 10. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.
Interpolated concentrations of native iNOS in Caco-2 cell extract samples based on an 800 μg/mL extract load.
The concentrations of iNOS were measured in duplicate and interpolated from the iNOS standard curve and corrected for sample dilution. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean iNOS concentration was determined to be 613.7 pg/mL in Caco-2 cell extract samples.
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