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OneStep qMethyl™ - Lite

Single step, qPCR procedure for bisulfite-free determination of DNA methylation status.
Like the OneStep qMethyl™ Kit (D5310) but omits the inclusion of SYTO 9® dye.
This "Lite" version allows real-time PCR to be performed with other fluorescent dyes or molecular probes of the researcher's choosing.
Ideal for rapid screening of single- and multi-locus DNA methylation.

Product Size Catalog # Price Qty
OneStep qMethyl™ - Lite 1 x 96 well D5311

About OneStep qMethyl™ - Lite

The OneStep qMethyl™-Lite from Zymo Research provides a simple, straightforward, and bisulfite-free procedure for rapid, locus-specific DNA methylation assessment. Simply add DNA into the appropriate reaction mix then quantitate via real-time PCR OneStep!

View a poster about the OneStep qMethyl™ -Lite

>i<OneStep</i> qMethyl™ Kit Flowchart

Simple, One Step DNA Methylation Determination
Unlike conventional qAMP procedures that contain multiple steps, the OneStep qMethyl™ method integrates the workflow into a simple, single step reaction. This minimizes errors that can occur during setup and the likelihood of contamination while allowing for rapid and accurate DNA methylation level detection.
Overview of Procedure

The OneStep qMethyl™-Lite is used for the detection of locus-specific DNA methylation via the selective amplification of a methylated region of DNA. This is accomplished by splitting any DNA to be tested into two parts: a "Test Reaction" and a "Reference Reaction" (see Figure 1 below). DNA in the Test Reaction is digested with Methylation Sensitive Restriction Enzymes (MSREs) while DNA in the Reference Reaction is not. The DNA from both samples is then amplified using real-time PCR in the presence of SYTO®9 fluorescent dye and then quantitated.


>i<OneStep</i> qMethyl™ Kit Workflow
Click to enlarge

Figure 1.
Schematics A and B (above) illustrate the sample workflow of Non-methylated DNA and Methylated DNAs. In both cases the DNA is divided in two parts; a Test Reaction and a Reference Reaction. Test Reaction samples are MSRE digested while the Reference Reaction samples are not (mock digested). Following digestion, DNA from both samples is used for real-time PCR. The white lollipops in the image represent unmethylated cytosines and black lollipops methylated cytosines in CpG dinucleotide context. Following real-time PCR, amplification plots (C and D) demonstrate non-methylated DNA exhibits large differences in the Ct values for Test and Reference Reactions (C) while highly methylated DNA samples exhibit little difference (D).

Format Provided Test Reaction-Lite PreMix and Reference Reaction-Lite PreMix does not contain SYTO® 9 dye. Kit can be purchased with SYTO® 9 dye in the premixes (see OneStep qMethyl™ Kit)
Processing Time 4.5 hrs
Input High quality DNA suitable for use in restriction enzyme digestion. Require A260/280 > 1.8, A260/230 > 1.8.
Source Recombinant enzyme
Storage Store at -20°C for up to 12 months. Avoid repeated freeze/thawing of reagents. Prolong storage at -80°C. 2X Test Reaction PreMix and 2X Reference Reaction PreMix are light sensitive, minimize light exposure.

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Featured Citations

The screening of DNA methylation levels at many potential key promoter regions involved with Alzheimer’s disease and bipolar disorder was executed with the OneStep qMethyl-Lite Kit. DNA methylation levels were quickly calculated to show similarities and dissimilarities of various gene promoters between the two brain disorders.

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