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Methylome sequencing of Burkholderia pseudomallei strains Bp33 and Bp35

ABSTRACT: We report the application of single-molecule-based sequencing technology for high-throughput profiling of DNA methylations in Burkholderia pseudomallei.

ORGANISM(S): Burkholderia pseudomallei

PROVIDER: GSE55168 | GEO | 2014/09/15

SECONDARY ACCESSION(S): PRJNA238656

REPOSITORIES: GEO

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Methylome sequencing of Burkholderia pseudomallei strains Bp33 and Bp35

Project description:We report the application of single-molecule-based sequencing technology for high-throughput profiling of DNA methylations in Burkholderia pseudomallei. SMRTbell™ sequencing

2014-09-15 | E-GEOD-55168 | biostudies-arrayexpress

Methylome sequencing of Burkholderia pseudomallei D286, H10, PMC2000, R15 and 982

Project description:We report the methylome sequencing and annotation of Burkholderia pseudomallei D286 based on high-throughput profiling using PacBio SMRT technology

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Effect of Mip inhibition on J774A.1 macrophage immune response during Burkholderia pseudomallei infection

Project description:Melioidosis, caused by the Gram-negative bacterium Burkholderia pseudomallei, is a disease endemic to South-East Asia and Northern Australia. Clinical presentation is highly variable, ranging from asymptomatic to fatal septicaemia, and thus the outcome of infection can depend on the host immune responses. The aim of this study was to characterise the macrophage immune response to B. pseudomallei in the presence of novel inhibitors targeting the virulence factor, Macrophage Infectivity Potentiator (Mip) protein. To do this. murine macrophage J774A.1 cells were infected with B. pseudomallei K96243 in the presence and absence of two small-molecule inhibitors designed to target the Mip protein. Global transcriptional profiling of macrophages infected with B. pseudomallei was analysed by RNA-Seq four hours post-infection. In the presence of Mip inhibitors, we found a significant reduction in the expression of pro-inflammatory cytokines highlighting the potential to utilize Mip inhibitors to dampen potentially harmful pro-inflammatory responses resulting from B. pseudomallei infection in macrophages. We then performed gene expression profiling analysis using data obtained from RNA-seq of J774A.1 macrophages infected with Burkholderia pseudomallei in the presence of two Mip inhibitors or vehicle control 4 hours post-infection

2024-03-06 | GSE244127 | GEO

Role of ppiB in burkholderia pseudomallei

Project description:Burkholderia pseudomallei is the causative agent of melioidosis a disease endemic in South-East Asia and Northern Australia. The mortality rates in these areas are unacceptably high even with antibiotic treatment, attributed to intrinsic and acquired resistance of B. pseudomallei to antibiotics. With very few options for therapeutics there is an urgent requirement to identify anti-bacterial targets for the development of novel, effective treatments. In this study we examine the role and effect of ppiB on the proteome. Using LFQ analysis we show loss of ppiB has dramatic effect on the Burkholderia pseudomallei proteome.

2019-08-05 | PXD012956 | Pride

Genomic Loss of Penicillin-Binding Protein 3 in Burkholderia pseudomallei Confers Clinical Resistance to Ceftazidime

Project description:Array-CGH analysis and Burkholderia pseudomallei isolates pre and post ceftazidime relapse.

2011-10-07 | GSE25832 | GEO

Toxicogenomic Effect of Burkholderia pseudomallei in a Human Macrophage Cell (THP-1) Model of Acute Melioidosis Using Whole-genome Microarray

Project description:Gene expression profiles of human cell (THP-1) lines exposed to a novel Daboiatoxin (DbTx) isolated from Daboia russelli russelli, and specific cytokines and inflammatory pathways involved in acute infection caused by Burkholderia pseudomallei. Keywords: Melioidosis, Burkholderia pseudomallei, Daboiatoxin, Cytokines, Inflammation.

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The Condition-Dependent Transcriptional Landscape of Burkholderia pseudomallei

Project description:Bacterial transcriptomes are dynamic, context-specific and condition-dependent. Infection by the soil bacterium, Burkholderia pseudomallei, causes melioidosis, an often fatal infectious disease of humans and animals. Possessing a large multi-chromosomal genome, B. pseudomallei is able to persist and survive in a multitude of environments. To obtain a comprehensive overview of B. pseudomallei expressed transcripts, we initiated whole-genome transcriptome profiling covering a broad spectrum of conditions and exposures – a so-called “condition compendium”. Using the compendium, we confirmed many previously-annotated genes and operons, and also identified hundreds of novel transcripts including anti-sense transcripts and non-coding RNAs. By systematically examining genes exhibiting highly similar expression patterns, we ascribed putative functions to previously uncharacterized genes, and identified novel regulatory elements controlling these expression patterns. We also used the compendium to elucidate candidate virulence pathways associated with quorum-sensing and infection in mice. Our study showcases the power of a B. pseudomallei condition compendium as a valuable resource for understanding microbial physiology and the pathogenesis of melioidosis.

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The expression of virulence and antimicrobial related proteins in different Burkholderia mallei and Burkholderia pseudomallei isolates

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Transcriptomics analysis during the transient ceftazidime tolerance of Burkholderia pseudomallei

Project description:B. pseudomallei strain K96243 is sensitive to the drug ceftazidime (CAZ), but has been shown to exhibit transient CAZ tolerance when in a biofilm form. To investigate an observed shift in gene expression profile during ceftazidime (CAZ) tolerance and to better understand the mechanistic aspects of this transient tolerance, RNA-sequencing was performed on B. pseudomallei K96243 from the following three growth states: planktonic-free, biofilm, and planktonic shedding cells. Results indicated that the expression of 651 genes (10.97%) were significantly changed in both biofilm (resistant) and planktonic shedding (sensitive) cells in comparison to the planktonic state. Burkholderia biofilm shifts its transcriptome in response to ceftazidime exposure by regulating iron-sulfur stabilizing and metabolic-related genes.

2021-06-30 | GSE168275 | GEO

RNAseq of Burkholderia pseudomallei TctR mutant, a regulator of type VI secretion

Project description:We report the transcriptome of Burkholderia pseudomallei type VI secretion regulator TctR mutant grown in rich media compared to wild type. The RNA-seq studies confirmed the role of TctR as a negative regulator of T6SS-2, a positive regulator of T6SS-6 and suggest a potential role in regulation of the T6SS-3 and T6SS-4 gene clusters.

2017-10-09 | GSE104716 | GEO

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