TY  - JOUR
A1  - Zhang, Yong
A1  - Vastenhouw, Nadine L.
A1  - Feng, Jianxing
A1  - Fu, Kai
A1  - Wang, Chenfei
A1  - Ge, Ying
A1  - Pauli, Andrea
A1  - van Hummelen, Paul
A1  - Schier, Alexander F.
A1  - Liu, X. Shirley
T1  - Canonical nucleosome organization at promoters forms during genome activation
Y1  - 2014/02/01 
JF  - Genome Research 
JO  - Genome Research 
SP  - 260 
EP  - 266 
DO  - 10.1101/gr.157750.113 
VL  - 24 
IS  - 2 
UR  - http://genome.cshlp.org/content/24/2/260.abstract 
N2  - The organization of nucleosomes influences transcriptional activity by controlling accessibility of DNA binding proteins to the genome. Genome-wide nucleosome binding profiles have identified a canonical nucleosome organization at gene promoters, where arrays of well-positioned nucleosomes emanate from nucleosome-depleted regions. The mechanisms of formation and the function of canonical promoter nucleosome organization remain unclear. Here we analyze the genome-wide location of nucleosomes during zebrafish embryogenesis and show that well-positioned nucleosome arrays appear on thousands of promoters during the activation of the zygotic genome. The formation of canonical promoter nucleosome organization is independent of DNA sequence preference, transcriptional elongation, and robust RNA polymerase II (Pol II) binding. Instead, canonical promoter nucleosome organization correlates with the presence of histone H3 lysine 4 trimethylation (H3K4me3) and affects future transcriptional activation. These findings reveal that genome activation is central to the organization of nucleosome arrays during early embryogenesis. 
ER  -