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| Status |
Public on Oct 31, 2019 |
| Title |
The histone deacetylase SIRT6 controls transcription elongation via promoter- proximal pausing (ChIP-Seq) |
| Organism |
Mus musculus |
| Experiment type |
Genome binding/occupancy profiling by high throughput sequencing
|
| Summary |
Transcriptional regulation in eukaryotes commonly occurs at promoter-proximal regions wherein transcriptionally engaged RNA Polymerase II (Pol II) pauses before proceeding towards productive elongation. The roles of chromatin in this process remains poorly understood. Here, we demonstrate that the histone deacetylase SIRT6 regulates transcription elongation by binding to Pol II and anchoring the Negative ELongation Factor NELF, thereby preventing the release of Pol II towards elongation. Absence of SIRT6, or conditions of glucose deprivation, lead to increased levels of acetylated histone H3 at lysines 9 (H3K9ac) and 56 (H3K56ac), activation of the CDK9 kinase, phosphorylation of NELF and Pol II, and recruitment of the transcription factors MYC and BRD4, the PAF1 Complex, as well as several positive elongation factors, in turn releasing Pol II into productive elongation. Collectively, we identified SIRT6 as the first pausing-dedicated histone deacetylase, regulating intragenic H3K9ac and H3K56ac as critical chromatin modifications modulating transcriptional pausing and elongation.
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| Overall design |
ChIP-seq experiments to determine genome wide profiles of multiple histone modifications (H3K36me3, H3K79me2, H3K9ac,H3K56ac), RNA polymerase II and the transcription factor LEO1 component of the PAF1 complex) in WT and SIRT6 KO mouse embryonic stem cells (129 mouse strain).
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| Contributor(s) |
Etchegaray J, Catherine L, Mostoslavsky R, Goren A, Ross KN, Fei J |
| Citation(s) |
31399344 |
| |
| Submission date |
May 03, 2019 |
| Last update date |
Jan 30, 2020 |
| Contact name |
Fei Ji |
| Organization name |
Massachusetts General Hospital
|
| Street address |
185 Cambridge St
|
| City |
Boston |
| ZIP/Postal code |
02129 |
| Country |
USA |
| |
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| Platforms (1) |
| GPL17021 |
Illumina HiSeq 2500 (Mus musculus) |
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| Samples (29)
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| This SubSeries is part of SuperSeries: |
| GSE130692 |
The histone deacetylase SIRT6 restrains transcription elongation via promoter-proximal pausing |
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| Relations |
| BioProject |
PRJNA540993 |
| SRA |
SRP194937 |
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