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Human Ang1-7(Angiotensin 1-7) ELISA Kit

  • Cat.No.:E-EL-H5518

  • Reactivity: Human

To Purchase E-EL-H5518

Size:
  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $609
Qty:

Product Details

Properties

Assay type Competitive-ELISA
Format 96T/48T
Assay time 2.0h
Detection range 15.63-1000 pg/mL
Sensitivity 9.38 pg/mL
Sample type &Sample volume serum, plasma and other biological fluids; 50μL
Specificity This kit recognizes Ang1-7 in samples. No significant cross-reactivity or interference between Ang1-7 and analogues was observed.
Reproducibility Both intra-CV and inter-CV are < 10%.
Application This ELISA kit applies to the in vitro quantitative determination of Ang1-7 concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Ang1-7. During the reaction, Ang1-7 in the sample or standard competes with a fixed amount of Ang1-7 on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Ang1-7. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of Ang1-7 in tested samples can be calculated by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
ItemSpecificationsStorage
Micro ELISA Plate(Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
-20℃, 6 months
Reference Standard 96T: 2 vials
48T: 1 vial
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
-20℃(Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL
HRP Conjugate Diluent 1 vial, 14 mL
Concentrated Wash Buffer (25×) 1 vial, 30 mL
Substrate Reagent 1 vial, 10 mL 2-8℃(Protect from light)
Stop Solution 1 vial, 10 mL 2-8℃
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Technical Data

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Ang1-7 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Ang1-7 were tested on 3 different plates, 20 replicates in each plate.

  Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (pg/mL) 46.10 155.10 482.30 46.20 149.20 518.80
Standard deviation 2.50 9.30 23.60 2.40 6.10 22.30
CV (%) 5.42 6.00 4.89 5.19 4.09 4.30

Recovery

The recovery of Ang1-7 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 92-103 97
EDTA plasma(n=8) 94-104 99
Cell culture media(n=8) 88-100 95

Linearity

Samples were spiked with high concentrations of Human Ang1-7 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Database LinksSwissProt: P01019
Research AreaCancer, Cardiovascular, Metabolism, Signal transduction

Assay Procedures

elisa assay procedure 1

1. Add 50μL standard or sample to the wells, immediately add 50μL Biotinylated Detection Ab working solution to each well. Incubate for 45 min at 37°C

elisa assay procedure 2

2. Aspirate and wash the plate for 3 times

elisa assay procedure 3

3. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 4

4. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 5

5. Add 50μL Stop Solution

elisa assay procedure 6

6. Read the plate at 450nm immediately. Calculation of the results

Citations

  1. Cardiovascular Diabetology (2022) IF: 8.949
    Glycated ACE2 reduces anti-remodeling effects of renin-angiotensin system inhibition in human diabetic hearts

    DOI: 10.1186/s12933-022-01573-x

    PMID: 35932065

    Sample: heart
  2. BIOLOGICAL PROCEDURES ONLINE (2022) IF: 7.717
    Angiotensin-converting enzyme 2 identifies immuno-hot tumors suggesting angiotensin-(1–7) as a sensitizer for chemotherapy and immunotherapy in breast cancer

    DOI: 10.1186/s12575-022-00177-9

    Sample: plasma
  3. Frontiers in Endocrinology (2022) IF: 6.055
    Children With Short Stature Display Reduced ACE2 Expression in Peripheral Blood Mononuclear Cells

    DOI: 10.3389/fendo.2022.912064

    PMID: 35909539

    Sample: serum
  4. NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES (2022) IF: 4.222
    Type 1 diabetes is associated with significant changes of ACE and ACE2 expression in peripheral blood mononuclear cells

    DOI: 10.1016/j.numecd.2022.01.029

    PMID: 35260304

    Sample: peripheral blood mononuclear cell
  5. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2020) IF: 4.556
    Sex Differences in Proatherogenic Cytokine Levels

    DOI: 10.3390/ijms21113861

    PMID: 32485823

    Sample: Serum
  6. BIOMEDICINE & PHARMACOTHERAPY (2017) IF: 2.759
    Oleanolic acid protects against pathogenesis of atherosclerosis, possibly via FXR-mediated angiotensin (Ang)-(1–7) upregulation

    DOI: 10.1016/j.biopha.2017.11.151

    Sample: Cell culture supernatant,Serum
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