A prominent and conserved role for YY1 in Xist transcriptional activation.
A prominent and conserved role for YY1 in Xist transcriptional activation.
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DOI:
10.1038/ncomms5878
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发表时间:
2014-09-11
影响因子:
16.6
通讯作者:
Rougeulle, Claire
中科院分区:
文献类型:
--
作者:
Makhlouf, Melanie;Ouimette, Jean-Francois;Oldfield, Andrew;Navarro, Pablo;Neuillet, Damien;Rougeulle, Claire
Accumulation of the non-coding RNA Xist on one X chromosome in female cells is a hallmark of X-chromosome inactivation in eutherians. Here, we uncovered an essential function for the ubiquitous autosomal transcription factor Yin-Yang 1 (YY1) in the transcriptional activation of Xist in both human and mouse. We show that loss of YY1 prevents Xist up-regulation during the initiation and maintenance of X-inactivation, and that YY1 binds directly the Xist 5′ region to trigger the activity of the Xist promoter. Binding of YY1 to the Xist 5′ region prior to X-chromosome inactivation competes with the Xist repressor REX1 while DNA methylation controls mono-allelic fixation of YY1 to Xist at the onset of X-chromosome inactivation. YY1 is thus the first autosomal activating factor involved in a fundamental and conserved pathway of Xist regulation that ensures the asymmetric transcriptional up-regulation of the master regulator of X-chromosome inactivation.
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作者:
BEARD, C;LI, E;JAENISCH, R
通讯作者:
JAENISCH, R
影响因子:
3.5
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HENDRICH, BD;BROWN, CJ;WILLARD, HF
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WILLARD, HF
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Bailey TL;Boden M;Buske FA;Frith M;Grant CE;Clementi L;Ren J;Li WW;Noble WS
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Noble WS
影响因子:
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Stubbs, L
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56.9
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Augui, S.;Filion, G. J.;Heard, E.
通讯作者:
Heard, E.