Activation of Endogenous Retroviruses in ESCs Involves Disruption of SETDB1-Mediated Repression by NP95 Binding to Hemimethylated DNA

Bhaskar Chanda Stem Cell Sharif et al. show that transient derepression of proviral loci following acute depletion of Dnmt1 in ESCs is not dependent on loss of DNA methylation per se. Rather, elevated levels of hemimethylated DNA promote prolonged binding of NP95, which in turn disrupts SETDB1-dependent deposition of the repressive histone mark H3K9me3.

from Cell Stem Cell http://ift.tt/1V45vMA
via Bhaskar Chanda UHN

Advertisements

Tags: , , , , , , ,

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: