Human eNOS ELISA Kit is a single-wash 90-min Simplestep used to quantify Human eNOS with a sensitivity of 77 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.
- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
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Key facts
- Detection method
- Colorimetric
- Sample types
- Cell Lysate
- Assay type
- Sandwich (quantitative)
- Reactive species
- Human
- Range
- 234.38 - 15000 pg/mL
- Assay time
- 1h 30m
- Sensitivity
- = 77 pg/mL
Reactivity data
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application sELISA | Reactivity Reacts | Dilution info - | Notes - |
Target data
Function
Produces nitric oxide (NO) which is implicated in vascular smooth muscle relaxation through a cGMP-mediated signal transduction pathway (PubMed:1378832). NO mediates vascular endothelial growth factor (VEGF)-induced angiogenesis in coronary vessels and promotes blood clotting through the activation of platelets. Isoform eNOS13C. Lacks eNOS activity, dominant-negative form that may down-regulate eNOS activity by forming heterodimers with isoform 1.
Alternative names
Nitric oxide synthase 3, Constitutive NOS, EC-NOS, NOS type III, cNOS, NOSIII, Endothelial NOS, eNOS, NOS3
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Human eNOS ELISA Kit is a single-wash 90-min Simplestep used to quantify Human eNOS with a sensitivity of 77 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.
- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
Key facts
- Detection method
- Colorimetric
- Sample types
- Cell Lysate
- Assay type
- Sandwich (quantitative)
- Reactive species
- Human
- Range
- 234.38 - 15000 pg/mL
- Assay time
- 1h 30m
- Assay Platform
- Pre-coated microplate (12 x 8 well strips)
- Sensitivity
- = 77 pg/mL
Precision
Intra assay
| Sample | n | C.V. |
|---|---|---|
Sample Extract | n 8 | C.V. 4.5 |
Inter assay
| Sample | n | C.V. |
|---|---|---|
Sample Extract | n 3 | C.V. 3.2 |
Recovery
Sample specific recovery
| Sample type | Average % | Range |
|---|---|---|
Sample type Cell Lysate | Average % = 95 | Range 84 - 101 % |
Storage
- Shipped at conditions
- Blue Ice
- Appropriate short-term storage conditions
- +4°C
- Appropriate long-term storage conditions
- +4°C
- Storage information
- +4°C
Notes
Human eNOS ELISA Kit (ab263878) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of eNOS protein in cell lysate. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human eNOS with 77 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.
eNOS, or NOS3, is an endothelial enzyme which produces nitric oxide and is the constitutively activated form found primarily in the vasculature. The nitric oxide produced by this enzyme regulates vascular tone and platelet aggregation. The standard protein in this kit is full length eNOS.
Abcam has not and does not intend to apply for the REACH Authorisation of customers' uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
ENOS also known as endothelial nitric oxide synthase is an enzyme important for the production of nitric oxide (NO) in blood vessels. This protein with a molecular weight of approximately 133 kDa is expressed mostly in endothelial cells. eNOS plays a mechanical role in synthesizing NO from L-arginine a process requiring cofactors such as NADPH and oxygen. The activity of eNOS can be investigated through techniques such as Western blot with specific assays like phospho-eNOS ELISA available to measure its phosphorylated forms indicating activated states of the enzyme.
- Biological function summary
ENOS contributes significantly to the regulation of vascular tone and blood flow by promoting vasodilation. It does not function alone; instead it forms complexes with other proteins to exert its full effect. eNOS activity influences the process of angiogenesis inflammation modulation and platelet aggregation. Through its ability to produce nitric oxide eNOS acts as a signaling molecule helping maintain vascular homeostasis.
- Pathways
ENOS is a critical player in the NO signaling pathway and interacts intricately with the PI3K/Akt pathway. Nitric oxide produced by eNOS has a role in signaling cascades that lead to vascular dilation and reduced blood pressure. The PI3K/Akt pathway regulates eNOS activity via phosphorylation enhancing NO production. Other proteins like caveolin-1 and calmodulin modulate eNOS impacting these pathways' outcomes.
- Associated diseases and disorders
ENOS is associated with cardiovascular conditions like atherosclerosis and hypertension. Dysfunction of eNOS can lead to reduced NO production impairing vasodilation and contributing to these diseases. In cardiovascular disorders eNOS interacts with proteins such as the angiotensin II type 1 receptor which can negatively impact its function exacerbating disease states. Investigating eNOS and its related proteins provides insight into potential therapeutic targets for improving cardiovascular health.
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2 product images
Sandwich ELISA - Human eNOS ELISA Kit (ab263878)
Example of human eNOS standard curve in 1X Cell Extraction Buffer PTR.
The eNOS 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.
Sandwich ELISA - Human eNOS ELISA Kit (ab263878)
Interpolated concentrations of native eNOS in human bEnd.3 cell extract based on a 40 μg/mL extract load.
The concentrations of eNOS were measured in duplicate and interpolated from the eNOS standard curve and corrected for sample dilution. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean eNOS concentration was determined to be 5611.62 pg/mL.
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