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MethylFlash Methylated DNA Quantification Kit (Colorimetric)

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For absorbance-based quantitation of global DNA methylation in an ELISA-like format

Citations (115)
Input Type: DNA
Research Area: DNA Methylation
Target Application: Amount Quantitation
Vessel Format: 96-Well Plate
Application Guarantee: 6 months
Catalog No.SizePriceQty
P-1034-4848 assays $298.00 
P-1034-9696 assays $539.00 
Availability: Usually Ships in 1 Day 
Product Overview

The MethylFlash™ Methylated DNA Quantification Kit (Colorimetric) is a complete set of optimized buffers and reagents to colorimetrically quantify global DNA methylation by specifically measuring levels of 5-methylcytosine (5-mC) in an ELISA-like microplate-based format.

This kit is also specifically optimized for paired use with the MethylFlash Hydroxymethylated DNA Quantification Kit (Colorimetric) for simultaneously quantifying both methylated DNA and hydroxymethylated DNA.

Product Features
The MethylFlash™ Methylated DNA Quantification Kit (Colorimetric) is a further refinement of our previous Methylamp™ global DNA methylation quantification kits by simplifying the workflow and improving the consistency of results. It uses an innovative method to enable background signals to be extremely low, eliminating the plate drying and blocking steps. Compared to chromatography-based methods such as HPLC or mass spectrometry, this product provides a cost-effective way to accurately measure levels of 5-methylcytosine. The kit has the following advantages and features:

  • Colorimetric assay with easy-to-follow steps for convenience and speed. The entire procedure can be finished within 4 hours.
  • Innovative kit composition enables background signals to be extremely low, which eliminates the need for plate blocking and allows the assay to be simple, accurate, reliable, and consistent.
  • High sensitivity, of which the detection limit can be as low as 0.2 ng of methylated DNA from just 50 ng of input genomic DNA.
  • Optimized antibody and enhancer solutions allow high specificity to 5mC, with no cross-reactivity to unmethylated cytosine and no or negligible cross-reactivity to hydroxymethylcytosine within the indicated concentration range of the sample DNA.
  • Universal positive and negative controls are included, which are suitable for quantifying methylated DNA from any species.
  • Strip-well microplate format makes the assay flexible: manual or high throughput analysis.

Principle & Procedure
The MethylFlash™ Methylated DNA Quantification Kit (Colorimetric) contains all reagents necessary for the quantification of global DNA methylation. In this assay, DNA is bound to strip wells that are specifically treated to have a high DNA affinity. The methylated fraction of DNA is detected using capture and detection antibodies and then quantified through an ELISA-like reaction by reading the absorbance in a microplate spectrophotometer at 450 nm. The amount of methylated DNA is proportional to the OD intensity measured, which can be calculated with the kit's included formulas for relative methylation status of two different DNA samples or absolute quantification of 5-methylcytosine (5mC) using a standard curve.

Easy, Fast, and Flexible
The entire colorimetric assay has easy-to-follow steps for convenience and speed, which can be completed in 4 hours. The strip-well microplate format allows for a flexible assay in manual or high throughput analysis. Universal positive and negative controls are included with the kit for quantifying methylated DNA from any species such as mammals, plants, fungi, bacteria, and viruses.

Safe and Convenient
All the needed reagents, including negative controls and positive controls, for quantification of global DNA methylation are conveniently packaged in the kit. The direct colorimetric quantification of DNA samples replaces obsolete or inferior methods and eliminates the need for DNA digestion/denaturation, radioactivity, extraction, or chromatography.

Highly Sensitive and Specific
The novel procedure and proprietary kit compositions allow for accurate quantification of methylated DNA to be achieved with high sensitivity and specificity. The detection limit of the input DNA can be as low as 0.2 ng of methylated DNA.


Fig. 1. Schematic procedure for the MethylFlash™ Methylated DNA Quantification Kit (Colorimetric).

 

Fig. 2. Demonstration of high sensitivity and specificity of methylated DNA (5mC) detection achieved by the MethylFlash™ kit. Synthetic unmethylated DNA (contains 50% of cytosine) and methylated DNA (contains 50% of 5-methylcytosine) were added into the assay wells at different concentrations and then measured with the MethylFlash™ Methylated DNA Quantification Kit (Colorimetric).

 

Fig. 3. 5-mC content levels in various sample types measured by MethylFlash™ technology versus HPLC-MS/MS, demonstrating a reliable correlation between the two techniques.

Product Components

ME1 (10X Wash Buffer)
ME2 (Binding Solution)
ME3 (Negative Control, 20 µg/ml)*
ME4 (Positive Control, 20 µg/ml)*
ME5 (Capture Antibody, 1000 µg/ml*
ME6 (Detection Antibody, 400 µg/ml)*
ME7 (Enhancer Solution)*
ME8 (Developer Solution)
ME9 (Stop Solution)
8-Well Assay Strips (With Frame)
User Guide

* Spin the solution down to the bottom prior to use.

Note: The ME3 Negative Control is an unmethylated polynucleotide containing 50% of cytosine. The ME4 Positive Control is a methylated polynucleotide containing 50% of 5-methylcytosine.

User Guide & MSDS

[User Guide]*
*Always use the actual User Guide that shipped with your product. Is the above file locked? You can also request user guides by emailing info@epigentek.com along with your contact information and institution name.

Product Citations

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