m7G RNA Enrichment & Quantification Kit

Product Description

N7-methylguanosine (m⁷G), the methylation of guanosine in the N7 position, is a prevalent and reversible post-transcriptional RNA modification that decorates mRNA, tRNA and rRNA. Recent studies have revealed the crucial roles of m⁷G RNA modification in multiple cellular processes, including RNA structural stability, folding, interactions with proteins, cell viability, impaired self-renewal ability, cell proliferation, and cell death. Methylated RNA immunoprecipitation (RIP) is a gold standard method to monitor the status and map the location of RNA modifications in specific genes and in transcriptome wide.

• Fast, streamlined procedure, finished in 5 hours
• Hands-on time is less than 1 hour
• Enriched RNA for transcriptome-wide profiling

The RayBio^® m⁷G (N7-methylguanosine) RNA Enrichment kit and quantification kit (QMERIP-M7G) identifies the abundance and enrichment location of m⁷G by MeRIP and quantitative real-time PCR. The enriched m⁷G RNA could also be used for transcriptome-wide profiling of m⁷G. In this assay, RNA sample is digested into fragments consisting of 100~500 nucleotides followed by incubation with an antibody against m⁷G conjugated to a magnetic bead. Then, the enriched RNA is released, purified, and eluted for qRT-PCR analysis. Included in the kit is a non-immune IgG control conjugated to a magnetic bead and two pairs of primer controls for Hela cell RNA. QMERIP-M7G uses a fast and streamlined procedure so the assay can be finished in 5 hours with a hands-on time of less than 1 hour. This kit has been validated for human, mouse, and rat m⁷G enrichment.

Workflow

Supporting Data

Figure 2. QMERIP-M7G enrichment test by PCR and RT-qPCR. (A) Representative images of agarose gel running after PCR amplification for the enrichment of m⁷G targeted PCBP2 and GAPDH mRNA. (B) Bar graph showing the percentage enrichment of m⁷G targeted PCBP2 and GAPDH mRNA using RT-qPCR assays. 2% Input RNA sample before IP was used as the positive control and IgG-IP was used as the negative control. Almost no PCR products were amplified from the m⁷G-IP GAPDH RNA samples. Error bars, SD (n = 3 independent experiments). *** P-value <0.001 compared to IgG-IP was calculated using the student’s t-test.