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Clostridioides difficile R20291

ABSTRACT: Clostridium difficile R20291 genome sequencing project

PROVIDER: PRJNA38039 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	GCA_000027105.1_sequence_report.txt	Txt

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Clostridioides difficile R20291

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Project description:Gene expression level of Clostridioides difficile (C. difficile) strain R20291 comparing control C. difficile carring pMTL84151 as vector plasmid with C. difficile conjugated with a pMTL84151-03890 gene. Goal was to determine the effects of 03890 gene conjugation on C. difficile strain R20291 gene expression.

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Project description:The incidence of Clostridium difficile infection has been steadily rising over the past decade. Its increased rate is associated with the specific NAP1/BI/027 strains which are “hypervirulent” and have led to several large outbreaks since their emergence. However, the relation between their outbreaks and virulence regulation mechanisms remains unclear. It has been reported that the major virulence factor TcdA and TcdB in C. difficile could be repressed by cysteine. Here, we investigated functional and virulence-associated regulation of C. difficile R20291 in response to cysteine stress by using a time-resolved genome-wide transcriptional analysis. Dramatic changes of gene expression in C. difficile were revealed in functional categories related to transport, metabolism, and regulators under cysteine stress during different phases of growth.

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