This track shows the locations of the putative Polycomb Response Elements (PRE). PRE regions are
defined as genomic locations that show enrichment of either Rpd3 (HDAC1) or HDAC4 in conjunction
with H3K27me3 but not H3K4me3.
Thanks to FlyBase for providing these annotations.
Nègre N, et al.
A cis-regulatory map of the Drosophila genome.
Nature. 2011 Mar 24;471(7339):527-31.