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| Status |
Public on Oct 15, 2015 |
| Title |
Panoramix enforces piRNA-dependent co-transcriptional silencing (GRO-Seq) |
| Organism |
Drosophila melanogaster |
| Experiment type |
Expression profiling by high throughput sequencing
Other
|
| Summary |
The Piwi-interacting RNA (piRNA) pathway is a small RNA-based innate immune system that defends germ cell genomes against transposons. In Drosophila ovaries, the nuclear Piwi protein is required for transcriptional silencing of transposons, though the precise mechanisms by which this occurs are unknown. Here we show that CG9754 is a component of Piwi complexes that functions downstream of Piwi and its binding partner, Asterix, in transcriptional silencing. Enforced tethering of CG9754 protein to nascent mRNA transcripts causes co-transcriptional silencing of the source locus and the deposition of repressive chromatin marks. We have named CG9754 Panoramix, and propose that this protein could act as an adaptor, scaffolding interactions between the piRNA pathway and the general silencing machinery that it recruits to enforce transcriptional repression.
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| |
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| Overall design |
Examination of nascent transcripts from germline knockdown of either Piwi or CG9754 from Drosophila ovaries
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| |
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| Contributor(s) |
Yu Y, Gu J, Jin Y, Luo Y, Preall JB, Ma J, Cezch B, Hannon GJ |
| Citation(s) |
26472911 |
| |
| Submission date |
Jul 27, 2015 |
| Last update date |
May 15, 2019 |
| Contact name |
Yang Yu |
| E-mail(s) |
[email protected]
|
| Organization name |
Cold Spring Harbor Laboratory
|
| Lab |
Hannon Lab
|
| Street address |
One Bungtown Road
|
| City |
Cold Spring Harbor |
| State/province |
NY |
| ZIP/Postal code |
11724 |
| Country |
USA |
| |
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| Platforms (2) |
| GPL13304 |
Illumina HiSeq 2000 (Drosophila melanogaster) |
| GPL16479 |
Illumina MiSeq (Drosophila melanogaster) |
|
| Samples (10)
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| This SubSeries is part of SuperSeries: |
| GSE71374 |
Panoramix enforces piRNA-dependent co-transcriptional silencing |
|
| Relations |
| BioProject |
PRJNA291048 |
| SRA |
SRP061628 |
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