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Springer Science and Business Media LLC BMC Research Notes 16(1)
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    초록·키워드

    RNA extraction from Mycobacterium tuberculosis has been a historically challenging task for researchers due to the thick lipids associated with the cell wall of this "notorious" pathogen that is responsible for Tuberculosis (TB) outbreaks. Several studies have successfully extracted RNA from M. tuberculosis using a Trizol reagent combined with organic solvents. Recently, our laboratory has successfully extracted high quality total RNA using a commercial kit from clinical strains belonging to F15/LAM4/KZN, Beijing and F11 strain families and H37Rv laboratory strain by exploiting high speed homogenizer for cell lysis and spin columns for RNA purification. The quality and integrity of the extracted RNA was analyzed and confirmed through the Nanodrop, Bioanalyzer and RNA 3-(N-morpholino) propanesulfonic acid (MOPS) gel electrophoresis. Furthermore, to confirm the integrity of small RNA (sRNA) molecules due to their vulnerability to degradation, the RNA samples were converted to cDNA and sRNAs were amplified and confirmed through PCR. This detailed RNA extraction protocol proposes to carve a new path into TB transcriptome research without the use of organic solvent for downstream purification steps while yielding high quality RNA that can be used to understand M. tuberculosis transcriptome regulation.

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