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Histone H2A.Z cooperates with RNAi and heterochromatin factors to suppress antisense RNAs


ABSTRACT: Expression profile of mutant cells compared to wild-type cells: Expression profile of Schizosaccharomyces pombe genome in ∆pht1, ∆ago1, ∆clr4, rik1, ∆pht1rik1, ∆pht1∆ago1 and ∆pht1∆clr4 cells. Expression profile of Schizosaccharomyces pombe genome in ∆rrp6, ∆cid14, ∆swi6, ∆swr1, ∆set1, ∆pht1∆swi6 and ∆pht1∆set1 cells. Expression profile of Schizosaccharomyces pombe genome in ∆alp13, ∆cph1, ∆set2, clr6-1 and ∆cph1∆pht1 cells. Occupancy profiling: Occupancy profiling of RNA polymerase II, histone variant H2A.Z and ClrC subunit Rik1 in fission yeast Schizosaccharomyces pombe Occupancy profiling of histone variant H2A.Z in ∆msc1 cells. Agilent 60mer oligonucleotide custom array containing probes spanning large portion of chromosome 2 at 50bp resolution was used to profile expression levels in mutant cells and to compare them to levels in wild-type cells. Agilent 60mer array was used to analyze DNA recovered by immunoprecipitation of RNA polymerase II, H2A.Z or Rik1 from asynchronous culture of fission yeast. Agilent 60mer array was used to analyze DNA recovered by immunoprecipitation of histone H2A.Z from asynchronous culture of fission yeast.

ORGANISM(S): Schizosaccharomyces pombe

SUBMITTER: Martin Zofall 

PROVIDER: E-GEOD-17271 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Histone H2A.Z cooperates with RNAi and heterochromatin factors to suppress antisense RNAs.

Zofall Martin M   Fischer Tamás T   Zhang Ke K   Zhou Ming M   Cui Bowen B   Veenstra Timothy D TD   Grewal Shiv I S SI  

Nature 20090819 7262


Eukaryotic transcriptomes are characterized by widespread transcription of noncoding and antisense RNAs, which is linked to key chromosomal processes, such as chromatin remodelling, gene regulation and heterochromatin assembly. However, these transcripts can be deleterious, and their accumulation is suppressed by several mechanisms including degradation by the nuclear exosome. The mechanisms by which cells differentiate coding RNAs from transcripts targeted for degradation are not clear. Here we  ...[more]

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