Regulation of Foxo-dependent transcription by post-translational modifications.

Regulation of Foxo-dependent transcription by post-translational modifications.
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DOI:
10.2174/138945011796150316
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发表时间:
2011-08
影响因子:
3.2
通讯作者:
Kalb RG
Kalb RG
中科院分区:
医学4区
文献类型:
--
作者:
Boccitto M;Kalb RG

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Forkhead Box O(Foxo)蛋白代表在进化上保守的转录因子家族,其在调节过程(包括代谢、寿命和细胞死亡/存活)中发挥重要作用。一个转录因子是如何引发如此不同的细胞反应的呢?我们将审查的证据表明,特定模式的翻译后修饰起着关键作用,指导FOXO到各种转录读出。这种调节似乎采取了两个层次的监管模式,一组明确定义的翻译后修饰调节核定位和转录活性,而第二组修饰调节Foxo的转录特异性。
The Forkhead Box O (Foxo) proteins represent an evolutionarily conserved family of transcription factors that play an important role in regulating processes including metabolism, longevity, and cell death/survival. How is it that a single transcription factor can initiate such divergent cellular responses? We will review the evidence that specific patterns of post-translational modifications play a key role in directing Foxo into various transcriptional readouts. This regulation appears to take on a two tiered regulatory model; with a group of well defined post-translational modifications regulating nuclear localization and transcriptional activity while a second set of modifications regulate the transcriptional specificity of Foxo.
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