AllPrep DNA/RNA Mini Kit

RNA isolation / purification Bacteria - Gram positive Bacillus anthracis

Experiment
RNA isolation / purification Bacteria - Gram positive Bacillus anthracis
Product
AllPrep DNA/RNA Mini Kit from Qiagen
Manufacturer
Qiagen

Protocol tips

Upstream tips
Complete disruption of plasma membranes of cells and organelles is absolutely required to release all the nucleic acids contained in the sample.
Different samples require different methods to achieve complete disruption.
Incomplete disruption results in significantly reduced nucleic acid yields.
Overloading the spin columns significantly reduces nucleic acid yields.
Protocol tips
Homogenizing the material is necessary to redice the viscosity of the lysates caused by cell disruption.
Incomplete homogenization results in inefficient binding of DNA and RNA and therefore significantly reduced yield and purity of nucleic acids.
Excessive homogenization, on the other hand, results in shorter genomic DNA fragments.
The centrifugation temperature should be 20–25ºC.
Warm the lysate to 37ºC before transferring it to the AllPrep DNA spin column.

Publication protocol

Total RNA was purified using the All Prep DNA/RNA kit (Qiagen) following the manufacturer’s protocol, and employing the optional on-column DNase I treatment. The quality of each RNA sample was assessed using a Bioanalyzer (Agilent, Santa Clara, CA) with a quality requirement of an integrity number > 8.0 for subsequent sequencing. RNA from two biological replicates was collected for each strain and condition.

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Discussion

Discussion

4 years ago

Author: Paul G. Macon United States

Some help with RNA isolation using Trizol

Hello! I used Trizol to extract total RNA from in-vitro cultured bacteria (1 X 10^8 cells). After phase separation, I mixed ~0.4 ml of the upper phase which contains RNA with 0.5 mL cold isopropanol. However, the amount of RNA when measured in Nanodrop was very low. In addition, the ratio between 260 and 230 was around 0.1 to 0.5. Is there a chance that my sample was contaminated by the Trizol reagent? When I collected the aqueous phase I made sure to not touch the lower phase. What should I do?

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Papers

Check out relevant papers found by Labettor's AI that are relevant for performing RNA isolation / purification Bacteria - Gram positive Bacillus anthracis using AllPrep DNA/RNA Mini Kit from Qiagen.

Paper title
Transcriptome analysis identifies genes that respond to CO through an AtxA-dependent mechanism
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Manufacturer protocol

Download the product protocol from Qiagen for AllPrep DNA/RNA Mini Kit below.

Download PDF Download manufacturer protocol

Videos

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