Efficient Kit for Simultaneous RNA/DNA Purification

University of Toronto
LMP
Graduate Student

Overall

Quality of Results

Ease-of-Optimization

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Company:

Qiagen

Product Name:

All Prep DNA/RNA Mini Kit (50)

Catalog Number:

80204

Nucleic acid isolation from mammalian cells is a common upstream step in most molecular biology techniques such as PCR, qPCR, and NGS. Here, I utilize this all prep kit to simultaneously extract both RNA and DNA from the same sample. DNA can be co-extracted along with the RNA in parallel, or purified later on after the RNA sample has been extracted.

Experimental Design and Results Summary

Application

Nucleic Acid purification

Starting Material

HCT116 cells

Protocol Overview

This kit allows cell pellets to be resuspended in a lysis buffer that stabilizes RNA, followed by removal of gDNA using a spin column. gDNA can be extracted from the column in parallel with the RNA extraction or stored. The flow-through from the gDNA column contains RNA that is devoid of gDNA and can be purified.

Tips

Ideal for extracting both RNA and DNA simultaneously when samples are limited

Results Summary

Great kit that is very efficient at removing gDNA while still preserving it for downstream applications such as PCR. Ideal for experiments that require simultaneous quantification of gene expression by qPCR and examining genomic stability/mutations by standard PCR.

DOI or PMID #

N/A

Additional Notes

N/A

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Summary

The Good

Fast and convenient kit for RNA/DNA extraction from the same sample

The Bad

Expensive kit

The Bottom Line

Expensive, but worth it! Good RNA and DNA yield.

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