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Staphylococcus aureus strain:clinical isolate | isolate:clinical isolate

ABSTRACT: Staphylococcus aureus strain:clinical isolate | isolate:clinical isolate Genome sequencing

PROVIDER: PRJNA1012534 | ENA |

REPOSITORIES: ENA

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Transcriptional profiling of a Staphylococcus aureus clinical isolate UAMS1 and its isogenic agr and sarA mutants

Project description:The purpose of this study was to compare the global, growth phase-dependent transcriptional profiles of two isolates of Staphylococcus aureus. One isolate is a prototypic laboratory strain named RN6390, and has been used frequently as a model organism for study of staphylococcal physiology and virulence. However, recent studies indicate that RN6390 is not, in general, genotypically or phenotypically representative of clinical isolates of Staphyloccos aureus. Therefore, there is no current comprehensive picture of gene expression patterns in a virulent, clinical isolate of Staphyloccous aureus. For these reasons, we compare the transcriptional profile of RN6390 to that of a virulent clinical isolate, UAMS-1. Also included in this study is profiling of two UAMS-1 regulatory mutants, UAMS-155, and UAMS-929. These strains possess mutations in the accessory gene regulator (agr) and staphylococcal accessory regulator (sarA) genes, respectively. These two genes are well described global regulatory molecules that are reported to play important roles in controlling virulence factor production and biofilm formation in Staphylococcus aureus. However, most study of these two molecules has been limited to laboratory strains such as RN6390. For these reasons, this study also includes transcriptional profiling of UAMS agr and sarA mutants. Keywords: Comparative, growth phase-dependent transcriptional profiling of bacterial strains and isogenic regulatory mutants

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A mutation in PP2C Phosphatase Gene in a Staphylococcus aureus USA300 Clinical Isolate with Reduced Susceptibility to Vancomycin and Daptomycin

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A mutation in PP2C Phosphatase Gene in a Staphylococcus aureus USA300 Clinical Isolate with Reduced Susceptibility to Vancomycin and Daptomycin

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Genomic comparison of vancomycin susceptible and vancomycin intermediate Staphylococcus aureus pairs

Project description:To determine if significant genomic changes are associated with the development of vancomycin intermediate Staphylococcus aureus, genomic DNA microarrays were performed to compare the initial vancomycin susceptible Staphylococcus aureus (VSSA) and a related vancomycin intermediate Staphylococcus aureus (VISA) isolate from five unique patients (five isolate pairs). Keywords: comparative genomic hybridization

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Metabolome of three Vancomycin-intermediate Staphylococcus aureus (VISA) mutants compared with the parent strain MM66

Project description:Vancomycin-intermediate Staphylococcus aureus (VISA) evolve in a strain-specific manner and acquire mutations that lead to alterations in cell wall metabolism that reduce susceptibility to vancomycin. We had earlier isolated several VISA mutant strains of the clinical hVISA strain MM66. This study is aimed at analyzing the metabolome of these mutants in comparison to the parent strain.

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Transcriptome of the NWMN_0641 deletion mutant strain and the wild-type Staphylococcus aureus Newman strain

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Project description:ArlRS is a two-component regulatory system in Staphylococcus aureus. Here we use RNA-sequencing to compare gene expression in a wild-type USA300 strain and an isogenic arlRS mutant.

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Regulation of gene expression by MgrA in Staphylococcus aureus USA300 strain LAC

Project description:MgrA is a global regulator of gene expression in Staphylococcus aureus. Here we use RNA-sequencing to compare gene expression in a wild-type USA300 strain and an isogenic mgrA mutant.

2019-05-07 | GSE130777 | GEO

Staphylococcus aureus strain:clinical

Project description:Staphylococcus aureus strain:clinical Raw sequence reads

| PRJNA851024 | ENA