Transcriptomics

Dataset Information

5

Chromatin immunoprecipitation and RNA-seq analysis in purified quiescent yeast cells to identify the genomic RNA polymerase II and histone H3 methylation occupancy profiles and the transcriptome


ABSTRACT: A defining characteristic of quiescent cells is their low level of gene activity compared to growing cells. Using a yeast model for cellular quiescence, we compared the genome-wide profiles of multiple histone modifications between growing and quiescent cells, and correlated these profiles with the presence of RNA polymerase II and its transcripts. Quiescent cells retained several forms of histone methylation normally associated with transcriptionally active chromatin and had many transcripts in common with growing cells. Quiescent cells also contained high levels of RNA polymerase II, but only low levels of the canonical initiating and elongating forms of the polymerase. The data suggest that the transcript and histone methylation marks in quiescent cells were either inherited from growing cells or established early during the development of quiescence and then retained in this non-growing cell population. This might ensure that quiescent cells can rapidly adapt to a changing environment to resume growth. Immunoprecipitation experiments were carried out for Pol II, H3K36me3, H3K4me3, H3K79me3 and H3 separately using both Log-phase and Quiescent cells. Each ChIP-chip assay was conducted using a control (IN) and in all instances, at least one replicate experiment was performed.

ORGANISM(S): Saccharomyces cerevisiae  

SUBMITTER: Darren Fitzpatrick   Alastair B Fleming  Cory Hillyer  Nikifor Konstantinov  Conor Young  Karsten Hokamp  Jacqueline S Welty  Scott Ness  MaryAnn Osley  Mary Ann Osley  Margaret Werner-Washburne 

PROVIDER: E-GEOD-72802 | ArrayExpress | 2015-09-09

SECONDARY ACCESSION(S): GSE72802PRJNA295131

REPOSITORIES: GEO, ArrayExpress

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