GEO DataSets

(Submitter supplied) Heterochromatin plays a key role in gene repression, maintaining genome integrity and chromosome segregation. Fission yeast, Schizosaccharomyces pombe, utilizes conserved components to direct heterochromatin formation using siRNA generated by RNA interference (RNAi) to guide a histone H3 lysine 9 methyltransferase to cognate chromatin. To identify compounds that inhibit heterochromatin formation, an in vivo phenotypic screen for loss of silencing was performed. more...

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by genome tiling array

Platform:

GPL7715

16 Samples

Download data: BAR, CEL, TXT

(Submitter supplied) Nucleosome positioning is both active and passive and regulates access to the genome for replication, transcription and repair. Here we report that Mit1, a subunit of the fission yeast SHREC complex similar to Mi-2/NuRD, regulates transcription at regions of heterochromatin by positioning nucleosomes to preclude access to RNA Polymerase II. Purified Mit1 is a nucleosome remodeling factor capable of mobilizing histone octamers on short DNA fragments and requires ATP hydrolysis and chromatin tethering domains to remodel nucleosomes and silence transcription. more...

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by genome tiling array

Platform:

GPL7715

4 Samples

Download data: BAR, BED, CEL, TXT

(Submitter supplied) Heterochromatic DNA domains play important roles in the regulation of gene expression and maintenance of genome stability by silencing repetitive DNA elements and transposons. In organisms ranging from fission yeast to mammals, heterochromatin assembly at DNA repeats involves the activity of small noncoding RNAs (sRNAs) associated with the RNA interference (RNAi) pathway. Typically, sRNAs, originating from long noncoding RNAs transcribed from DNA repeats, guide Argonaute-containing effector complexes to complementary nascent RNAs to initiate histone H3 lysine 9 di- and tri-methylation (H3K9me2 and H3K9me3, respectively) and heterochromatin formation. more...

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13988

71 Samples

Download data: TDF

(Submitter supplied) Gene expression profiling of S. pombe set1/COMPASS/H3K4 mutants, atf1 and set1 atf1 deletion mutants, set1 clr3 deletion mutants; ChIP-chip tiling microarray profiling of S. pombe Set1, Atf1, H3K4me3 in wt/atf1 deletion mutants, H3K9me2 in wt/set1 clr3 deletion mutants

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by array; Genome binding/occupancy profiling by array

Platform:

GPL6503

40 Samples

Download data: TXT

(Submitter supplied) Heterochromatin formation requires several steps involving: nucleation followed by spreading of large, silent domains and its faithful re-establishment and maintenance after each replication cycle. The essential histone chaperone FACT has been implicated in heterochromatin silencing, however, little is known about the specificity of FACT in this process. Here, by applying single cell assays, ChIP and genetics, we show that FACT mutants have defects in the spreading of heterochromatin at subtelomeres and mating type locus in fission yeast. more...

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13988

8 Samples

Download data: BW

(Submitter supplied) Recent studies have revealed that eukaryotic genomes are pervasively transcribed by RNA polymerase II, producing a plethora of non-coding RNAs which frequently overlap protein-coding genes. Despite the fact that overlapping transcription is well known to repress transcription initiation from downstream promoters, the mechanism behind this phenomenon has remained elusive. It was proposed that transcriptional interference relies on the act of transcription rather than the RNA itself to block access of the transcription machinery to downstream promoters. more...

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17225

4 Samples

Download data: FA, TAB

(Submitter supplied) Recent studies have revealed that eukaryotic genomes are pervasively transcribed by RNA polymerase II, producing a plethora of non-coding RNAs which frequently overlap protein-coding genes. Despite the fact that overlapping transcription is well known to repress transcription initiation from downstream promoters, the mechanism behind this phenomenon has remained elusive. It was proposed that transcriptional interference relies on the act of transcription rather than the RNA itself to block access of the transcription machinery to downstream promoters. more...

Organism:

Schizosaccharomyces pombe

Type:

Other

Platform:

GPL17225

8 Samples

Download data: FA, TAB

(Submitter supplied) Histone H3 lysine 9 methylation (H3K9me) mediates heterochromatic gene silencing and is important for genome stability and the regulation of gene expression. The establishment and epigenetic maintenance of heterochromatin involve the recruitment of H3K9 methyltransferases to specific sites on DNA, followed by the recognition of pre-existing H3K9me by the methyltransferase and methylation of proximal histone H3. more...

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17225

111 Samples

Download data: TDF

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by genome tiling array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL20584 GPL6503

4 Samples

Download data: BEDGRAPH, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by genome tiling array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL13988 GPL7715

20 Samples

Download data: BEDGRAPH, CEL

(Submitter supplied) Regulation of heterochromatin is critical for genome stability. Different states of methylated H3K9 have been discovered with distinct roles in heterochromatin formation and silencing. However, the control of the transition from H3K9me2 to H3K9me3 is still unclear. Here we investigate the role of the conserved bromodomain AAA-ATPase, Abo1, involved in maintaining the global nucleosome organization in fission yeast. more...

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13988

8 Samples

Download data: BEDGRAPH

(Submitter supplied) Regulation of heterochromatin is critical for genome stability. Different states of methylated H3K9 have been discovered with distinct roles in heterochromatin formation and silencing. However, the control of the transition from H3K9me2 to H3K9me3 is still unclear. Here we investigate the role of the conserved bromodomain AAA-ATPase, Abo1, involved in maintaining the global nucleosome organization in fission yeast. more...

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by genome tiling array

Platform:

GPL7715

12 Samples

Download data: CEL

(Submitter supplied) Methylation of histone H3 at lysine 9 (H3K9) is a hallmark of heterochromatin that plays crucial roles in chromatin-dependent gene silencing and maintenance of genome stability by repressing repetitive DNA elements and recruiting downstream factors essential for faithful chromosome segregation. Fundamental principles of these processes have been elucidated in the fission yeast Schizosaccharomyces pombe (S. more...

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL20584 GPL17225

144 Samples

Download data: BW, TXT

(Submitter supplied) Here, we report the high-throughput profiling of histone modification (H3K9me2) in fission yeast Schizosaccharomyces pombe. We generated genome-wide H3K9me2 maps of fission yeast mutants in swo1-26 (temperature sensitive, ts) cells at 25℃ and 37℃. We find that H3K9me2 enrichment at heterochromatin regions, especially at the mating-type locus and subtelomeres, is compromised, suggesting heterochromatin assembly defects.

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL22668

5 Samples

Download data: BEDGRAPH

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL16192 GPL20584

23 Samples

Download data: BEDGRAPH, BW, TXT

(Submitter supplied) RNA sequencing in Schizosaccharomyces pombe

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20584

4 Samples

Download data: TXT

(Submitter supplied) Mapping of H3K9me2, 3' RNA processing and termination factors, and terminating RNA polymerase II in Schizosaccharomyces pombe

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL20584 GPL16192

19 Samples

Download data: BEDGRAPH, BW

(Submitter supplied) Analysis of histone H3 turnover in wild-type and mutant fission yeast cells by using MNase-ChIP-chip

Organism:

Schizosaccharomyces pombe

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL11244 GPL16854

13 Samples

Download data: TXT

(Submitter supplied) Aconitase is a highly conserved metabolic enzyme for TCA cycle. In Schizosaccharomyces pombe, an aconitase (Aco2) is localized in both mitochondria and the nucleus, apart from an exclusively mitochondrial one (Aco1). We investigated the role of nuclear Aco2, and present evidences that it interacts with Chp1, a heterochromatin-associated HP1 protein, and acts as an anti-silencing factor. Nuclear depletion of Aco2 by deleting nuclear localization signal (aco2ΔNLS) suppressed the gene-silencing defects of RNAi mutants Δago1 and Δdcr1 at the centromere, where RNAi-mediated heterochromatin formation prevails. more...

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17225

15 Samples

Download data: BW, TXT

(Submitter supplied) Next Generation Sequencing (NGS) on total RNA of wild type (WT) and Y41F mutant. The goal of this study is to compare the transcriptome profile of Y41F mutant to WT cells.

Organism:

Schizosaccharomyces pombe

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13988

4 Samples

Download data: XLS