Short RNAs are transcribed from repressed polycomb target genes and interact with polycomb repressive complex-2.
Short RNAs are transcribed from repressed polycomb target genes and interact with polycomb repressive complex-2.
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DOI:
10.1016/j.molcel.2010.03.019
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发表时间:
2010-06-11
期刊:
影响因子:
16
通讯作者:
Jenner RG
中科院分区:
文献类型:
--
作者:
Kanhere A;Viiri K;Araújo CC;Rasaiyaah J;Bouwman RD;Whyte WA;Pereira CF;Brookes E;Walker K;Bell GW;Pombo A;Fisher AG;Young RA;Jenner RG
Polycomb proteins maintain cell identity by repressing the expression of developmental regulators specific for other cell types. Polycomb repressive complex-2 (PRC2) catalyses trimethylation of histone H3 lysine-27 (H3K27me3). Although repressed, PRC2 targets are generally associated with the transcriptional initiation marker H3K4me3 but the significance of this remains unclear. Here, we identify a new class of short RNAs, ~50-200 nucleotides in length, transcribed from the 5′-end of polycomb target genes in primary T-cells and embryonic stem cells. Short RNA transcription is associated with RNA polymerase II and H3K4me3, occurs in the absence of mRNA transcription and is independent of polycomb activity. Short RNAs form stem-loop structures resembling PRC2 binding sites in Xist, interact with PRC2 through SUZ12, cause gene repression in cis and are depleted from polycomb target genes activated during cell differentiation. We propose that short RNAs play a role in the association of PRC2 with its target genes.
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DOI:
10.1126/science.1162253
发表时间:
2008-12-19
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Seila AC;Calabrese JM;Levine SS;Yeo GW;Rahl PB;Flynn RA;Young RA;Sharp PA
通讯作者:
Sharp PA
DOI:
10.1016/j.cub.2009.02.055
发表时间:
2009-04-28
期刊:
Current biology : CB
影响因子:
--
作者:
Chopra VS;Hong JW;Levine M
通讯作者:
Levine M
影响因子:
5.3
作者:
O'Carroll, D;Erhardt, S;Jenuwein, T
通讯作者:
Jenuwein, T
影响因子:
56.9
作者:
Kapranov, Philipp;Cheng, Jill;Gingeras, Thomas R.
通讯作者:
Gingeras, Thomas R.
影响因子:
30.5
作者:
Su, IH;Basavaraj, A;Tarakhovsky, A
通讯作者:
Tarakhovsky, A