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Human ACE2(Angiotensin Ⅰ Converting Enzyme 2) ELISA Kit

Citations(7)Uniprot : Q9BYF1

Cat.No.:E-EL-H0281
Reactivity: Human

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Product Details

Properties

Assay type	Sandwich-ELISA
Format	96T/48T/24
Assay time	3.5h
Detection range	0.39-25 ng/mL
Sensitivity	0.23 ng/mL
Sample type &Sample volume	serum, plasma and other biological fluids; 100μL
Specificity	This kit recognizes Human ACE2 in samples. No significant cross-reactivity or interference between Human ACE2 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 Human ACE2 concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human ACE2. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human ACE2 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human ACE2, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human ACE2. You can calculate the concentration of Human ACE2 in the samples 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.

Item	Specifications	Storage
Micro ELISA Plate(Dismountable)	96T: 8 wells ×12 strips 48T: 8 wells ×6 strips	-20℃, 12 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), 12 months
Reference Standard & Sample Diluent	1 vial, 20 mL	2-8°C, 12 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°C
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 Human ACE2 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human ACE2 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 (ng/mL)	1.25	3.33	11.54	1.32	3.29	11.99
Standard deviation	0.07	0.20	0.54	0.07	0.14	0.65
CV (%)	5.60	6.01	4.68	5.30	4.26	5.42

Recovery

The recovery of Human ACE2 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)	91-102	96
EDTA plasma (n=8)	94-108	100
Cell culture media (n=8)	90-103	96

Target Information

Database Links	SwissProt: Q9BYF1
Synonyms	ACEH, ACEII
Research Area	Cancer, Cell Biology, Cardiovascular

Assay Procedures

	1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C
	2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C
	3. Aspirate and wash the plate for 3 times
	4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times
	5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C
	6. Add 50μL Stop Solution
	7. Read the plate at 450nm immediately. Calculation of the results

Citations

Plants-Basel (2020) IF: 2.762

Geranium and Lemon Essential Oils and Their Active Compounds Downregulate Angiotensin-Converting Enzyme 2 (ACE2), a SARS-CoV-2 Spike Receptor-Binding Domain, in Epithelial Cells

DOI: 10.3390/plants9060770
	Sample: Ht-29 Cell

Plants-Basel (2021) IF: 3.935

Antcins from Antrodia cinnamomea and Antrodia salmonea Inhibit Angiotensin-Converting Enzyme 2 (ACE2) in Epithelial Cells: Can Be Potential Candidates for the Development of SARS-CoV-2 Prophylactic Agents

DOI: 10.3390/plants10081736
	Sample: Ht-29 Cell

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

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2020) IF: 4.556

Sex Differences in Proatherogenic Cytokine Levels

DOI: 10.3390/ijms21113861
PMID: 32485823	Sample: Serum

Journal of Personalized Medicine (2022) IF: 4.945

The Predictive Value of Serum ACE2 and TMPRSS2 Concentrations in Patients with COVID-19—A Prospective Pilot Study

DOI: 10.3390/jpm12040622
	Sample: Serum

JOURNAL OF HEADACHE AND PAIN (2021) IF: 7.277

HMGB1, NLRP3, IL-6 and ACE2 levels are elevated in COVID-19 with headache: a window to the infection-related headache mechanism

DOI: 10.1186/s10194-021-01306-7
PMID: 34384355	Sample: Serum

Journal of Translational Medicine (2022) IF: 8.44

Chemotherapy induces ACE2 expression in breast cancer via the ROS-AKT-HIF-1α signaling pathway: a potential prognostic marker for breast cancer patients receiving chemotherapy

DOI: 10.1186/s12967-022-03716-w
	Sample: Plasma

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