Get tips on using SV Total RNA Isolation System to perform RNA isolation / purification Bacteria - Gram negative Helicobacter pylori
Get tips on using High Pure RNA Isolation Kit to perform RNA isolation / purification Bacteria - Gram negative Haemophilus influenzae
Get tips on using High Pure RNA Isolation Kit to perform RNA isolation / purification Bacteria - Gram negative Chlamydia pneumoniae
Get tips on using PureLink ™ miRNA Isolation Kit to perform RNA isolation / purification Bacteria - Gram positive Mycobacterium tuberculosis
Get tips on using High Pure RNA Isolation Kit to perform RNA isolation / purification Bacteria - Gram negative Vibro parahaemolyticus
Get tips on using High Pure RNA Isolation Kit to perform RNA isolation / purification Bacteria - Gram negative Neisseria gonorrhoeae
Get tips on using High Pure RNA Isolation Kit to perform RNA isolation / purification Bacteria - Gram positive Streptococcus pneumoniae
Get tips on using SV Total RNA Isolation System to perform RNA isolation / purification Bacteria - Gram positive Streptococcus pneumoniae
Get tips on using pET-21a(+) DNA to perform Protein expression and purification Bacteria - Escherichia coli Prefoldin (PFD)
The process of RNA extraction from bacteria, in general, involves an RNA-protective, effective lysis of bacterial cell wall (which may pose difficulties). EDTA promotes loss of outer membrane to provide lysozyme with access to peptidoglycan. Another common method for cell wall lysis is mechanical disruption using a homogenizer (applied for gram-positive bacteria and some strains of gram-negative bacteria). Following lysis, it is necessary to disrupt protein-nucleic acid interactions, which can be achieved by adding sodium dodecyl sulfate (SDS). Next step involves using phenol-chloroform-isoamyl alcohol extraction, where RNA can be obtained from the bottom organic phase, the top phase consists of DNA and the interphase contains proteins. Isoamyl alcohol is an inert and optional addition to this mixture and is added as an anti-foaming reagent to reduce the interphase. Following RNA extraction, the samples should be checked for its quality by gel electrophoresis (23S and 16S rRNAs and 5s rRNA and tRNA bands) or UV spectrophotometric or fluorescence methods.
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