Listeria weihenstephanensis strain:WS 4560 ( = DSM 24698)
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ABSTRACT:
PROVIDER: PRJNA275474 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Adaptation of Listeria weihenstephanensis to anaerobiosis. Trascriptional profiling at two different temperatures of L. weihenstephanensis
2017-08-23 | GSE94124 | GEO
Project description:Listeria weihenstephanensis overview
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Project description:Adaptation of Listeria weihenstephanensis to anaerobiosis
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Project description:Listeria weihenstephanensis FSL R9-0317 Genome sequencing and assembly
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Project description:This dataset contains spectral information of protein N-terminal peptides isolated from Listeria monocytogenes EGD-e, a bacterial model organism and human pathogen. When mapped onto the Listeria genome these peptides indicate the exact location of translation initiation sites (TIS). The large majority of the identified TIS corresponded to start sites of predicted open reading frames (ORFs), however, a significant fraction of the identified TIS indicated deviations from the current genome annotation. The latter include primarily TIS inside the sequence of predicted ORFs or TIS that delineate the start position of novel ORFs.
2016-12-24 | PXD000890 | Pride
Project description:A previously described low-fitness, high stress-resistant, variant of Listeria monocytogenes LO28 WT was subjected to an experimental evolution regime, selecting (in two parallel lines) for increased fitness in unstressed conditions. Evolved variants with increased fitness reverted to WT-like stress resistance. Whole genome sequencing and proteomics were used to identify differences between the ancestral and evolved strains.
2023-10-03 | PXD022732 | Pride
Project description:Listeria monocytogenes is an opportunistic foodborne pathogen responsible for listeriosis, the third most common foodborne disease. Many different Listeria strains and seroptypes exist, however a proteogenomic resource which would provide a basis for bridging the gap in the molecular understanding between the Listeria genotype and phenotypes via proteotypes is still missing. Here we devised a next-generation proteogenomics strategy which enables the community now to rapidly proteotype Listeria strains and relate the information back to the genotype. Based on sequencing and de novo assembly of the two most commonly used Listeria strain model systems, EGD-e and ScottA, we established a comprehensive Listeria proteogenomic database. A genome comparison established core and strain-specific genes with potential relevance for virulence differences. Next we established a DIA/SWATH-based proteotyping strategy, including a new and robust sample preparation workflow, enabling the reproducible, sensitive and relative quantitative measurement of Listeria proteotypes. This re-usable DIA/SWATH library and new public resource covers 70% of the potentially expressed ORFs of Listeria and represents the most extensive spectral library for Listeria proteotype analysis to date. We used these two new resources to investigate the Listeria proteotype in three states mimicking the upper gastrointestinal passage. Exposure of Listeria to bile salts at 37 °C, mimicking conditions encountered in the duodenum, showed significant proteotype perturbations including an increase of FlaA, the structural protein of flagella. Given that Listeria is known to lose its flagella above 30 °C, this was an unexpected finding. The formation of flagella, which might have implications within the infectivity cycle, was validated by parallel reaction monitoring, light and scanning electron microscopy. QPCR data of flaA transcripts showed no significant differences suggesting a regulation at the post-transcriptional level. Together, we provide a comprehensive proteogenomic resource and toolbox for the Listeria community enabling the analysis of Listeria genotype-proteotype-phenotype relationships.
2019-06-01 | MSV000083881 | MassIVE
Project description:Listeria monocytogenes is a human, food-borne pathogen. Genomic comparisons between L. monocytogenes and Listeria innocua, a closely related non-pathogenic species, were pivotal in the identification of protein coding genes essential for virulence. However, no comprehensive comparison has focused on the non-coding genome. We used strand-specific cDNA sequencing to produce genome-wide transcription start site (TSS) maps for both organisms, and developed a publicly available integrative browser to visualize and analyze both transcriptomes in different growth conditions and genetic backgrounds. Our data revealed conservation across most transcripts, but significant divergence between the species in a subset of non-coding RNAs. In L. monocytogenes we identified 113 sRNAs and 70 asRNAs, significantly increasing the repertoire of non coding RNAs in this species. Remarkably, we identified a class of long antisense transcripts (lasRNAs) that overlap one gene while also serving as the 5M-bM-^@M-^Y UTR of the adjacent divergent gene. Experimental evidence suggests that lasRNAs transcription inhibits expression of one operon while activating the expression of another. Such lasRNA/operon structure, termed "excludon", might represent a novel form of regulation in bacteria. Construction of consensus TSS-maps in Listeria monocytogenes and Listeria innocua by applying 5'-end sequencing on samples in different conditions and genetic backgrounds.
2012-05-01 | E-GEOD-36060 | biostudies-arrayexpress
Project description:Listeria grayi DSM 20601 genome sequencing project
| PRJEA50381 | ENA
Project description:The stationary phase stress response transcriptome of the human bacterial pathogen Listeria monocytogenes was defined using RNA sequencing (RNA-Seq) with the Illumina Genome Analyzer. Specifically, bacterial transcriptomes were compared between stationary phase cells of L. monocytogenes 10403S and an otherwise isogenic DsigB mutant, which does not express the alternative sigma factor σB, a major regulator of genes contributing to stress response. Keywords: Transcriptome and differential expression analyses
2010-01-05 | GSE15651 | GEO