Genomics

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The yeast Snt2 protein helps coordinate the transcriptional response to hydrogen-peroxide mediated oxidative stress (rapamycin or DMSO)


ABSTRACT: Snt2 is a yeast chromatin-interacting protein whose function has not been well characterized, that was recently shown to associate with Ecm5 and the Rpd3 deacetylase. Using chromatin immunoprecipitation followed by high-throughput sequencing (ChIP-seq), we show that in response to H2O2, Snt2 and Ecm5 colocalize to promoters of genes involved in various aspects of the environmental stress response. By integrating these ChIP-seq results with expression analysis, we identify a key set of target genes that require Snt2 for proper expression after H2O2 stress. Finally, by mapping Snt2 and Ecm5 localization before and after rapamycin treatment, we identify a subset of H2O2-specific Snt2 and Ecm5 target promoters that are also targeted in response to rapamycin. Our results establish a function for Snt2 in regulating transcriptional changes in response to oxidative stress, and suggest Snt2 may have a role in additional stress pathways.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE43001 | GEO | 2013/07/24

SECONDARY ACCESSION(S): PRJNA184041

REPOSITORIES: GEO

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