Schizosaccharomyces pombe
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA205764 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Role of Fft3 in nuclear organization [MNase-seq]
| PRJNA248690 | ENA
Project description:In eukaryotic cells, local chromatin structure and chromatin organization in the nucleus both influence transcriptional regulation. At the local level, the Fun30 chromatin remodeler Fft3 is essential for maintaining proper chromatin structure at centromeres and subtelomeres in fission yeast. Using genome-wide mapping and live cell imaging, we show that this role is linked to controlling nuclear organization of its targets. In fft3M-NM-^T cells, subtelomeres lose their association with the LEM domain protein Man1 at the nuclear periphery and move to the interior of the nucleus. Furthermore, genes in these domains are upregulated and active chromatin marks increase. Fft3 is also enriched at retrotransposon-derived long terminal repeat (LTR) elements at the borders of subtelomeres and at tRNA genes. In cells lacking Fft3, these sites lose their peripheral positioning and show reduced nucleosome occupancy. We propose that Fft3 has a global role in mediating association between specific chromatin domains and components of the nuclear envelope by maintaining chromatin structure required for anchoring DNA insulators to nuclear pores. For DamID samples, we recorded methylation levels for Dam fusion proteins and compared them to Dam-only control samples. For ChIP samples, we compared immuno-precipitated DNA to mock or input controls.
2015-03-02 | E-GEOD-47464 | biostudies-arrayexpress
Project description:Role of Fft3 in nuclear organization
| PRJNA248689 | ENA
Project description:In eukaryotic cells, local chromatin structure and chromatin organization in the nucleus both influence transcriptional regulation. At the local level, the Fun30 chromatin remodeler Fft3 is essential for maintaining proper chromatin structure at centromeres and subtelomeres in fission yeast. Using genome-wide mapping and live cell imaging, we show that this role is linked to controlling nuclear organization of its targets. In fft3M-NM-^T cells, subtelomeres lose their association with the LEM domain protein Man1 at the nuclear periphery and move to the interior of the nucleus. Furthermore, genes in these domains are upregulated and active chromatin marks increase. Fft3 is also enriched at retrotransposon-derived long terminal repeat (LTR) elements at the borders of subtelomeres and at tRNA genes. In cells lacking Fft3, these sites lose their peripheral positioning and show reduced nucleosome occupancy. We propose that Fft3 has a global role in mediating association between specific chromatin domains and components of the nuclear envelope by maintaining chromatin structure required for anchoring DNA insulators to nuclear pores. For MNase samples, duplicate mutant mononucleosome fractions were compared with duplicate WT mononucleosomes.
2015-03-02 | E-GEOD-58012 | biostudies-arrayexpress
Project description:The metazoan nuclear periphery is involved in transcriptional regulation and chromatin organisation. To test whether this is also the case in the fission yeast Schizosaccharomyces pombe, we performed DamID experiments with two inner nuclear membrane (INM) proteins, Ima1 and Man1. The resulting map showed that about a third of the genome is associated with the nuclear periphery. We find that both INM proteins preferentially associate with lowly expressed genes, and are depleted from highly expressed genes. Further, intergenic regions of divergent gene pairs are more frequently associated with the periphery than convergent pairs, indicating that transcription points away from the periphery rather than toward it
2012-01-18 | GSE30476 | GEO
Project description:Genome-wide analysis of Prz1 in fission yeast reveals a novel inhibitory role in flocculation and a conserved activating role in cell wall organization [ChIP-chip]
| PRJNA311370 | ENA
Project description:A role for TFIIIC transcription factor complex in genome organization
| PRJNA94477 | ENA
Project description:In eukaryotic cells, local chromatin structure and chromatin organization in the nucleus both influence transcriptional regulation. At the local level, the Fun30 chromatin remodeler Fft3 is essential for maintaining proper chromatin structure at centromeres and subtelomeres in fission yeast. Using genome-wide mapping and live cell imaging, we show that this role is linked to controlling nuclear organization of its targets. In fft3Δ cells, subtelomeres lose their association with the LEM domain protein Man1 at the nuclear periphery and move to the interior of the nucleus. Furthermore, genes in these domains are upregulated and active chromatin marks increase. Fft3 is also enriched at retrotransposon-derived long terminal repeat (LTR) elements at the borders of subtelomeres and at tRNA genes. In cells lacking Fft3, these sites lose their peripheral positioning and show reduced nucleosome occupancy. We propose that Fft3 has a global role in mediating association between specific chromatin domains and components of the nuclear envelope by maintaining chromatin structure required for anchoring DNA insulators to nuclear pores.
2015-03-02 | GSE58012 | GEO
Project description:Snf2 Family Protein Fft3 Suppresses Nucleosome Turnover to Promote Epigenetic Inheritance of Heterochromatin and Proper Replication of the Genome [H3K9me2 ChIP]
| PRJNA349049 | ENA
Project description:Role of Fun30 remodelers in retrotransposon regulation [ChIP-chip and expression analysis]
| PRJNA245876 | ENA