Project description:Listeria monocytogenes strain 10403S has been studied extensively for stress response activity toward multiple stressors (acid, osmotic, cold, high temperature, etc.) as well as multiple stress regulons (SigB, CtsR, HrcA, etc.). Here we aimed to determine the transcriptional response of Listeria monocytogenes in early log phase towards the strong oxidative stress imposed by ClO2. The elucidation of such a response allows for further a more completel understanding of the mechanism of inactivation by sanitizers, specifically ClO2. Independent RNA isolations were performed for strain 10403S with and without exposure to ClO2 from cells grown to early log phase. Four biological replicates were used in competitive whole-genome microarray experiments. For each set of hybridizations, RNA from a control sample of Listeria monocytogenes was hybridized with RNA from a culture of L. monocytogenes following exposure to ClO2. Dye swapping was performed for the four replicates to mitigate any concerns of dye bias.

2014-03-07 | E-GEOD-48187 | biostudies-arrayexpress

Surface Proteins of Listeria monocytogenes

Project description:Listeria monocytogenes cells (strain LI0521) were digested with trypsin for the identification of surface proteins. The supernatant was filter-sterilized and subjected to identification by LC-MS/MS. Concurrently secreted or shed proteins were identified by isolating filter-sterilized supernatants following incubation of L. monocytogenes cells in buffer without trypsin. This was followed by trypsin digest of the sterilized supernatant and identification by LC-MS/MS.

2013-08-27 | PXD000035 | Pride

Listeria monocytogenes transcriptional response to bile

Project description:These studies were designed to examine the acute Listeria monocytogenes transcriptional response to mammalian (porcine) bile. Triplicate WT Listeria monocytogenes (strain 10403S) were grown to mid-log in BHI at 37 Â°C. Samples were divided, and either treated or not treated by addition of porcine bile (Sigma, to 1% final) for 30 minutes.

2011-04-12 | E-GEOD-28507 | biostudies-arrayexpress

Transcriptome (RNA-seq) of Huh7 cells non-infected (NI) or infected (Inf.) with the pathogen Listeria monocytogenes (strain EGD-e)

Project description:Comparisons of gene expression profiles of human hepatocytes (Huh7) infected or not by the bacterium Listeria monocytogenes (strain EGD-e) for 72 hours and analysed by RNA-seq

2021-09-26 | GSE184729 | GEO

Transcriptome (RNA-seq) of HepG2 cells non-infected (NI) or infected (Inf.) with the pathogen Listeria monocytogenes (strain EGD-e)

Project description:Comparisons of gene expression profiles of human hepatocytes (HepG2) infected or not by the bacterium Listeria monocytogenes (strain EGD-e) for 72 hours and analysed by RNA-seq

2021-09-25 | GSE184697 | GEO

Expression analysis of Listeria monocytogenes LO28 delta-lhrC1-5 mutant and LO28 wt

Project description:Investigation of whole genome gene expression level changes in Listeria monocytogenes LO28 delta-lhrC1-5 mutant, compared to the wild type strain. The lhrC1-5 genes encode the regulatory sRNAs LhrC1-5. The microarray studied the gene expression of unstressed cells and cells exposed to cefuroxime for 30 min. The lhrC1-5 mutant employed in this study is further described in Sievers et al. (2014) A multicopy sRNA of Listeria monocytogenes regulates expression of the virulence adhesin LapB. Nucleic Acids Res. 42:9383-98.

2015-05-19 | GSE68996 | GEO

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