p53 mediates target gene association with nuclear speckles for amplified RNA expression.
p53 mediates target gene association with nuclear speckles for amplified RNA expression.
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p53介导靶基因与核斑点的关联以扩增RNA表达。
DOI:
10.1016/j.molcel.2021.03.006
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发表时间:
2021-04-15
期刊:
影响因子:
16
通讯作者:
Berger SL
中科院分区:
文献类型:
--
作者:
Alexander KA;Coté A;Nguyen SC;Zhang L;Gholamalamdari O;Agudelo-Garcia P;Lin-Shiao E;Tanim KMA;Lim J;Biddle N;Dunagin MC;Good CR;Mendoza MR;Little SC;Belmont A;Joyce EF;Raj A;Berger SL
Nuclear speckles are prominent nuclear bodies that contain proteins and RNA involved in gene expression. While links between nuclear speckles and gene activation are emerging, the mechanisms regulating association of genes with speckles are unclear. We find that speckle association of p53 target genes is driven by the p53 transcription factor. Focusing on p21, a key p53 target, we demonstrate that speckle association boosts expression by elevating nascent RNA amounts. p53-regulated speckle association did not depend on p53 transactivation functions, but required an intact proline-rich domain and direct DNA binding, providing mechanisms within p53 for regulating gene-speckle association. Beyond p21, a substantial subset of p53 targets have p53-regulated speckle association. Strikingly, speckle-associating p53 targets are more robustly activated and occupy a distinct niche of p53 biology compared to non-speckle-associating p53 targets. Together, our findings illuminate regulated speckle association as a mechanism utilized by a transcription factor to boost gene expression. Regulated association between genes and nuclear speckles remains poorly understood. Alexander et al. find that the p53 transcription factor regulates speckle association of certain target genes, demonstrating that speckle association by p53 governs gene expression. Thus, speckle association by transcription factors has the potential to be a major gene-regulatory mechanism.
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影响因子:
3.5
作者:
Cribbs AP;Kennedy A;Gregory B;Brennan FM
通讯作者:
Brennan FM
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
影响因子:
64.5
作者:
ELDEIRY, WS;TOKINO, T;VOGELSTEIN, B
通讯作者:
VOGELSTEIN, B
DOI:
10.1083/jcb.201004041
发表时间:
2010-11-15
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hu Y;Plutz M;Belmont AS
通讯作者:
Belmont AS