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Genome-wide maps of gene transcription level in wild-type and mpbR-deleted Mycobacterium tuberculosis H37Ra strains

ABSTRACT: Genome-wide maps of gene transcription level in wild-type and mpbR-deleted Mycobacterium tuberculosis H37Ra strains

PROVIDER: PRJNA562277 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10022311_1.fastq.gz	Fastqsanger.gz
	SRR10022311_2.fastq.gz	Fastqsanger.gz
	SRR10022312_1.fastq.gz	Fastqsanger.gz
	SRR10022312_2.fastq.gz	Fastqsanger.gz
	SRR10022313_1.fastq.gz	Fastqsanger.gz

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Genome-wide maps of gene transcription level in wild-type and mpbR-deleted Mycobacterium tuberculosis H37Ra strains

Project description:We report the application of RNA-seq technology for high-throughput profiling of gene transcription in M. tuberculosis H37Ra strains. By obtaining over four billion bases of sequence from mRNA, we generated genome-wide gene transcription maps of wild-type and mpbR-deleted Mycobacterium tuberculosis H37Ra strains. We find that a group of genes is significantly up-regulated in the mpbR-deleted mutant strain. This finding indicates that MpbR negatively regulates gene expression.

2022-08-26 | GSE136322 | GEO

Genome-wide maps of gene transcription level in BMDMs infected with recombinant Mycobacterium tuberculosis H37Ra strains.

Project description:We report the application of RNA-seq technology for high-throughput profiling of gene transcription in BMDMs. By obtaining over six billion bases of sequence from mRNA, we generated genome-wide gene transcription maps of BMDMs infected with recombinant Mycobacterium tuberculosis H37Ra strains. We find that a group of genes is significantly affected by MpbR. This finding indicates that MpbR regulates the host immune.

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Genome-wide maps of gene transcription levels in RAW264.7 infected with CdhM-related Mycobacterium tuberculosis H37Ra strain.

Project description:We report the application of RNA-seq technology for high-throughput profiling of gene transcription in RAW264.7 infected with Mycobacterium tuberculosis H37Ra. By obtaining over six billion bases of sequence from mRNA, we generated genome-wide gene transcription maps of RAW264.7 infected with CdhM-related Mycobacterium tuberculosis H37Ra. We find that numerous genes involved in ER stress are significantly affected by CdhM. This finding indicates that CdhM may induce ER stress during Mtb infection of host cells.

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Genome-wide maps of gene transcription level in BMDMs infected with recombinant Mycobacterium tuberculosis H37Ra strains.

Project description:Genome-wide maps of gene transcription level in BMDMs infected with recombinant Mycobacterium tuberculosis H37Ra strains.

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Next Generation Sequencing Facilitates Quantitative Analysis of cmtR-deleted mutant and wild-type strains Transcriptomes in Mycobacterium tuberculosis H37Ra

Project description:Compare the gene expression difference between MRA_2010 knockout strains and wild-type strains by RNA sequencing in Mycobacterium tuberculosis H37Ra. The goal of this study is that detection cmtR acts as a transcriptional factor and regulates the target genes expression.

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Quantitative proteomic and phosphoproteomic analysis of H37Ra and H37Rv strains of Mycobacterium tuberculosis

Project description:Mycobacterium tuberculosis, the causative agent of tuberculosis accounts for 1.5 million annual deaths worldwide. The two well-characterized strains of the parental H37 strain namely, H37Ra and H37Rv show different pathogenic phenotypes. In order to identify factors that are responsible for virulence, we compared the proteome and the phosphoproteome profiles of virulent (H37Rv) and virulence attenuated (H37Ra) strains of M. tuberculosis. Quantitative proteomic analysis resulted in the identification and quantitation of 2,709 proteins and 505 phosphosites. Comparative analysis revealed over 5-fold overexpression of several proteins associated with virulence. Our data indicates that there are definable molecular differences between H37Rv and H37Ra strains at both the proteome and phosphoproteome levels which may explain the virulence and phenotypic differences.

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Project description:M. tuberculosis H37Ra, an avirulent tubercle bacillus, is a commonly used model to investigate virulence attenuation in M. tuberculosis. Comparative high-throughput studies have earlier correlated its avirulence to the presence of specific mutations or absence of certain proteins. However, a recent sequencing study of H37Ra has disproved several genomic differences earlier reported to be associated with virulence. This warrants further investigations on the H37Ra proteome as well. In this study, we carried out an integrated analysis of the genome, transcriptome and proteome of H37Ra. In addition to confirming single nucleotide variations and insertion-deletions that were reported earlier, our study provides novel insights into the mutation spectrum in the promoter regions of 7 genes. In all, we provide protein coding evidence for 3,199 proteins representing ~79% of the total predicted gene count. Transcriptome analysis revealed the expression of 3,945 high-confidence transcripts including several transcripts mapping to the genome that were previously thought to be non-coding. We identified 9 genes whose coding potential was hitherto reported to be absent in H37Ra . These include 2 putative virulence factors belonging to ESAT-6 like family of proteins. Furthermore, proteogenomic analysis enabled us to identify 63 novel proteins coding genes and correct 25 existing gene models in H37Ra genome. A majority of these were found to be conserved in the virulent strain H37Rv as well as in other mycobacterial sp. suggesting that that the differences in the virulent and avirulent strains of M. tuberculosis are not entirely dependent on the expression of certain proteins or their absence but may possibly be ascertained to functional changes.

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