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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Histone modification governs the cell cycle regulation of a replication-independent chromatin assembly Pathway in Saccharomyces cerevisuae
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Histone modification governs the cell cycle regulation of a replication-independent chromatin assembly Pathway in Saccharomyces cerevisuae

机译:组蛋白修饰控制酿酒酵母中复制无关的染色质组装途径的细胞周期调控

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摘要

We describe a replication-independent, cell cycle-regulated chromatin assembly pathway in budding yeast. The activity of this pathway is low in S phase extracts but is very high in G2, M, and G1 cell extracts, with peak activity in late M/early G1. The cell cycle regulation of this pathway requires a specific pattern of posttranslational mod- ification of histones H3 and/or H4, which is distinct for H3/H4 present in S phase versus M and G1 phase cell extracts. Histone H3/H4 modification is therefore important for the reciprocal control of replication-dependent and -independent chromatin assembly pathways during the cell cycle.
机译:我们描述了在发芽酵母中的复制独立,细胞周期调节的染色质组装途径。在S期提取物中,该途径的活性较低,但在G2,M和G1细胞提取物中,该途径的活性很高,在晚期M /早期G1中具有最高活性。该途径的细胞周期调控需要组蛋白H3和/或H4的翻译后修饰的特定模式,这对于S期中的H3 / H4与M和G1期细胞提取物而言是不同的。因此,组蛋白H3 / H4修饰对于细胞周期中复制依赖性和非依赖性染色质组装途径的相互控制很重要。

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