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Updated: Aug 15, 2026

A Microscopic Phenotypic Assay for the Quantification of Intracellular Mycobacteria Adapted for High-throughput/High-content Screening
Published on: January 17, 2014
Microarray analysis of the Mycobacterium tuberculosis transcriptional response to the acidic conditions found in
Mark A Fisher1, Bonnie B Plikaytis, Thomas M Shinnick
1Program in Microbiology and Molecular Genetics, Emory University, Atlanta, Georgia 30322, USA.
Abstract:
We used microarrays and real-time reverse transcription-PCR to analyze the global transcriptional response of Mycobacterium tuberculosis to low pH in vitro, which may mimic an environmental signal encountered by phagocytosed mycobacteria. Eighty-one genes were differentially expressed >1.5-fold, including many involved in fatty acid metabolism. The most highly induced genes showed homology with nonribosomal peptide synthetases/polyketide synthases.
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