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Ribosome profiling and RNA sequencing reveal genome-wide cellular translation and transcription regulation under osmotic stress in Lactobacillus rhamnosus ATCC 53103

ABSTRACT: Ribosome profiling and RNA sequencing reveal genome-wide cellular translation and transcription regulation under osmotic stress in Lactobacillus rhamnosus ATCC 53103

PROVIDER: PRJNA780800 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR16955378.fastq.gz	Fastqsanger.gz
	SRR16955379.fastq.gz	Fastqsanger.gz
	SRR16955380.fastq.gz	Fastqsanger.gz
	SRR16955381.fastq.gz	Fastqsanger.gz

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Ribosome profiling and RNA sequencing reveal genome-wide cellular translation and transcription regulation under osmotic stress in Lactobacillus rhamnosus ATCC 53103

Project description:To determine whether osmotic pressure affects the translation efficiency of Lactobacillus rhamnosus, the ribosome profiling assay was performed to analyze the changes in translation efficiency in L. rhamnosus ATCC 53103. Under osmotic stress, differentially expressed genes (DEGs) involved in fatty acid biosynthesis and metabolism, ribosome, and purine metabolism pathways were co-regulated with consistent expression direction at translation and transcription levels. DEGs involved in the biosynthesis of phenylalanine, tyrosine, and tryptophan, and the phosphotransferase system pathways also were co-regulated at translation and transcription levels, while they showed opposite expression direction at two levels. Moreover, DEGs involved in the two-component system, amino acid metabolism, and pyruvate metabolism pathways were only regulated at the transcription level. And DEGs involved in fructose and mannose metabolism were only regulated at the translation level. The translation efficiency of DEGs involved in the biosynthesis of amino acids was downregulated while in quorum sensing and PTS pathways was upregulated. In addition, the ribosome footprints accumulated in open reading frame regions resulted in impaired translation initiation and elongation under osmotic stress. In summary, L. rhamnosus ATCC 53103 could respond to osmotic stress by translation regulation and control the balance between survival and growth of cells by transcription and translation.

2021-12-15 | GSE188929 | GEO

Ribosome Profiling and RNA Sequencing Reveal Genome-Wide Cellular Translation and Transcription Regulation Under Osmotic Stress in Lactobacillus rhamnosus ATCC 53103.

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Response of Candida albicans to Lactobacillus rhamnosus

Project description:The bacterium Lactobacillus rhamnosus antagonizes the fungus Candida albicans. The transcriptional response of C. albicans to the presence of L. rhamnosus in an in vitro infection model with and without antibiotic treatment was investigated using microarrays.

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Project description:Lactobacillus rhamnosus is a facultatively heterofermentative lactic acid bacterium and is frequently isolated from human gastrointestinal mucosa of healthy individuals. L. rhamnosus ATCC 53103, isolated from a healthy human intestinal flora, is one of the most widely used and well-documented probiotics. Here, we report the finished and annotated genome sequence of this organism.

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Bile stress response in probiotic Lactobacillus rhamnosus GG

Project description:Transcriptional profiling of probiotic Lactobacillus rhamnosus strain GG mid-exponential pH-controlled bioreactor cultures before and after exposure to bovine bile (0.2% ox gall). Keywords: bile, stress response Cell samples from four biological replicates were harvested right before (time point 0 min) and 10, 30 and 120 min after bile treatment. Each sample was compared to a common reference sample (time point 0 min, mid-exponential growth phase Lactobacillus rhamnosus GG cultures). A total of 12 hybridizations were performed using balanced dye-swap design. Dyes were balanced between compared sample pairs and between biological replicates.

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