Nutrient regulation of gene expression by O-GlcNAcylation of chromatin.

Nutrient regulation of gene expression by O-GlcNAcylation of chromatin.
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DOI:
10.1016/j.cbpa.2016.06.005
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发表时间:
2016-08
影响因子:
7.8
通讯作者:
Hart, Gerald W.
Hart, Gerald W.
中科院分区:
生物学2区
文献类型:
--
作者:
Hardiville, Stephan;Hart, Gerald W.

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O-GlcNAc化是一种动态的翻译后修饰,其通过己糖胺生物合成途径及其终产物UDP-GlcNAc有效地响应营养。O-GlcNAcylation作为一种营养传感器来调节几乎所有生物过程中所涉及的许多蛋白质的活性。在过去的十年中,OGT、OGA和O-GlcNAc化已被证明是在胚胎发育、细胞分化、表观遗传状态的维持和表观遗传相关疾病的病因学中控制基因表达的表观遗传标记的纽带。OGT O-GlcNA酰化组蛋白和表观遗传写入器/擦除器,并调节基因激活以及基因抑制。在这里,我们强调最近的工作记录的重要作用O-GlcNAc酰化及其循环酶发挥营养调控的表观遗传合作伙伴控制基因表达。
O-GlcNAcylation is a dynamic post-translational modification that is responsive to nutrient availably via the hexosamine biosynthetic pathway and its endproduct UDP-GlcNAc. O-GlcNAcylation serves as a nutrient sensor to regulate the activities of many proteins involved in nearly all biological processes. Within the last decade, OGT, OGA and O-GlcNAcylation have been shown to be at the nexus of epigenetic marks controlling gene expression during embryonic development, cell differentiation, in the maintenance of epigenetic states and in the etiology of epigenetic related diseases. OGT O-GlcNAcylates histones and epigenetic writers/erasers, and regulates gene activation, as well as gene repression. Here, we highlight recent work documenting the important roles O-GlcNAcylation and its cycling enzymes play in the nutrient regulation of epigenetic partners controlling gene expression.
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