Format

Send to

Choose Destination
Genes Dev. 2015 Sep 1;29(17):1789-94. doi: 10.1101/gad.264341.115.

A negative loop within the nuclear pore complex controls global chromatin organization.

Author information

1
The Wellcome Trust Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, United Kingdom.

Abstract

The nuclear pore complex (NPC) tethers chromatin to create an environment for gene regulation, but little is known about how this activity is regulated to avoid excessive tethering of the genome. Here we propose a negative regulatory loop within the NPC controlling the chromatin attachment state, in which Nup155 and Nup93 recruit Nup62 to suppress chromatin tethering by Nup155. Depletion of Nup62 severely disrupts chromatin distribution in the nuclei of female germlines and somatic cells, which can be reversed by codepleting Nup155. Thus, this universal regulatory system within the NPC is crucial to control large-scale chromatin organization in the nucleus.

KEYWORDS:

Drosophila; chromatin; karyosome; meiosis; nuclear pore

PMID:
26341556
PMCID:
PMC4573852
DOI:
10.1101/gad.264341.115
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for HighWire Icon for PubMed Central
Loading ...
Support Center