Omics · study · 2026
Mechanism of maintenance and establishment of repression by the Mtg16 tumor suppressor [CUT&RUN, ChIP-Seq]
Listed in NCBI GEO
The MTG family of transcriptional corepressors are frequent targets of chromosomal translocations and deletions in cancer, yet the mechanisms underlying tumor suppression are unclear.
Description
We employed a chemical-genetic approach to investigate the molecular mechanism of Mtg16-mediated repression. Analysis of nascent transcription revealed that Mtg16 is required to repress hundreds of genes and enhancers, including the oncogenes Myb and Gfi1b.
Because Mtg16 tightly regulated its own transcription, this model yielded a rapid “on/off/on” switch for Mtg16, providing a unique opportunity to study maintenance and establishment of repression within the same system. Mtg16 directly opposed histone acetylation at regulated loci, but analysis of H3K27ac revealed that changes in this mark correlated better with Mtg16 itself than with transcriptional activity. Importantly, both the relationship between Mtg16 and Class I HDAC activity and Mtg16-mediated re-establishment of repression were dependent target transcription.
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We propose that Mtg16 acts as a transcription-sensitive damper at highly accessible loci.
Links
Get the data
- GEO FTP directory ftp.ncbi.nlm.nih.gov/geo/series/GSE303nnn/GSE303384 ↗
download · from NCBI GEO
Where it is published
- GEO accession page ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE303384 ↗
landing page · from NCBI GEO
Documentation and papers
- PRJNA1294979 ncbi.nlm.nih.gov/bioproject/PRJNA1294979 ↗
project · from NCBI GEO
Topics
- Stated by source
- Genome binding/occupancy profiling by high throughput sequencing · Mus musculus
- From keywords
- Life Sciences
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NCBI GEO | GSE303384 | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| concepts[disease].local:disease:cancer | enrichment · NCBI GEO | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[field].anzsrc:group:3105 | enrichment · NCBI GEO | taxonomy-embedding@1.0.0 | title+keywords+description (73%) |
| concepts[field].local:field:life-sciences | mapping · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| concepts[method].geo_series_type:genome-binding-occupancy-profiling-by-high-throughput-sequencing | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /gdstype |
| concepts[organism].NCBITaxon:10090 | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /taxon |
| description | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /summary |
| publication_date | source · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| title | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /title |