A poised chromatin platform for TGF-β access to master regulators.
A poised chromatin platform for TGF-β access to master regulators.
复制标题
DOI:
10.1016/j.cell.2011.11.032
复制
发表时间:
2011-12-23
期刊:
影响因子:
64.5
通讯作者:
Massagué J
中科院分区:
文献类型:
--
作者:
Xi Q;Wang Z;Zaromytidou AI;Zhang XH;Chow-Tsang LF;Liu JX;Kim H;Barlas A;Manova-Todorova K;Kaartinen V;Studer L;Mark W;Patel DJ;Massagué J
Specific chromatin marks keep master regulators of differentiation silent, yet poised for activation by extracellular signals. We report that nodal TGF-β signals use the poised histone mark H3K9me3 to trigger differentiation of mammalian embryonic stem cells. Nodal receptors induce the formation of companion Smad4-Smad2/3 and TRIM33-Smad2/3 complexes. TRIM33-Smad2/3 binds the histone marks H3K9me3 and K18ac on the promoters of mesendoderm regulators Gsc and Mixl1. Binding is through the PHD-Bromo cassette of TRIM33. In the crystal structure of this cassette bound to histone H3 peptides, PHD recognizes K9me3 and Bromo an adjacent K18ac. Binding of TRIM33-Smad2/3 to H3K9me3 displaces the chromatin compacting factor HP1γ and makes nodal response elements accessible to Smad4-Smad2/3 for Pol II recruitment. In turn, Smad4 increases K18 acetylation to augment TRIM33-Smad2/3 binding. Thus, nodal cues use the H3K9me3 mark as a platform to switch master regulators of stem cell differentiation from the poised to the active state.
登录
查看更多内容
影响因子:
64.5
作者:
Bai X;Kim J;Yang Z;Jurynec MJ;Akie TE;Lee J;LeBlanc J;Sessa A;Jiang H;DiBiase A;Zhou Y;Grunwald DJ;Lin S;Cantor AB;Orkin SH;Zon LI
通讯作者:
Zon LI
DOI:
10.1073/pnas.0605333103
发表时间:
2006-08-22
影响因子:
11.1
作者:
Gomis, Roger R.;Alarcon, Claudio;Massague, Joan
通讯作者:
Massague, Joan
影响因子:
10.5
作者:
Aragon, Eric;Goerner, Nina;Macias, Maria J.
通讯作者:
Macias, Maria J.
DOI:
10.1016/j.bbrc.2005.06.044
发表时间:
2005-08-12
影响因子:
3.1
作者:
Hart, AH;Willson, TA;Robb, L
通讯作者:
Robb, L
影响因子:
64.5
作者:
Alarcón C;Zaromytidou AI;Xi Q;Gao S;Yu J;Fujisawa S;Barlas A;Miller AN;Manova-Todorova K;Macias MJ;Sapkota G;Pan D;Massagué J
通讯作者:
Massagué J