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| Status |
Public on Jan 07, 2020 |
| Title |
Core components of the nuclear pore bind distinct states of chromatin and contribute to Polycomb repression I |
| Organism |
Drosophila melanogaster |
| Experiment type |
Genome binding/occupancy profiling by high throughput sequencing
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| Summary |
Interactions between the genome and the nuclear pore complex (NPC) have been implicated in multiple gene regulatory processes, but the underlying logic of these interactions remains poorly defined. Here, we report high-resolution chromatin binding maps of two core components of the NPC, Nup107 and Nup93, which reveal differential binding of these NPC subunits to active genes and Polycomb-covered silent regions, respectively. Comparison to Lamin-associated domains (LADs) revealed that NPC binding sites are often found within LADs, demonstrating a linear binding of the genome along the nuclear envelope. Significantly, we identified a functional role of Nup93 in silencing of Polycomb target genes and in spatial folding of Polycomb domains. Our findings lend to a model where nuclear pores bind different types of chromatin via interactions with specific core sub-complexes of the NPC, and the Nup93 sub-complex functions as a stabilizing scaffold for Polycomb domains.
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| Overall design |
Characterization of Elys, Nup93, and Nup107 by ChIP-Seq in Drosophila embryonic S2 cells.
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| Contributor(s) |
Gozalo A, Capelson M |
| Citation(s) |
31784359 |
| |
| Submission date |
Aug 08, 2019 |
| Last update date |
Jan 07, 2020 |
| Contact name |
Yemin Lan |
| Organization name |
University of Pennsylvania
|
| Street address |
3400 Civic Center Blvd
|
| City |
Philadelphia |
| State/province |
PA |
| ZIP/Postal code |
19104 |
| Country |
USA |
| |
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| Platforms (1) |
| GPL19132 |
Illumina NextSeq 500 (Drosophila melanogaster) |
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| Samples (8)
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| This SubSeries is part of SuperSeries: |
| GSE136117 |
Core components of the nuclear pore bind distinct states of chromatin and contribute to Polycomb repression |
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| Relations |
| BioProject |
PRJNA559429 |
| SRA |
SRP217890 |
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