Active transcription without histone modifications
نویسندگان
چکیده
منابع مشابه
Active transcription without histone modifications.
Gene expression is regulated by proteins such as transcription factors, as well as by chromatin modifications on DNA and histones. Some histone modifications have been associated to transcriptional activation (i.e. H3K4me1, H3K4me3, H3K9ac, H3K27ac or H3K36me3) whereas others with gene silencing (H3K9me3 and H3K27me3). However, and challenging this premise, we have identified a set of genes in ...
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Covalent modifications of the amino-termini of the core histones in nucleosomes have been shown to be one of the key regulatory mechanisms in transcription regulation. Recently, new roles for histone modifications have been uncovered for the efficient functioning of RNA Pol II. Besides acetylation, which is the most characterized to date these modifications comprise phosphorylation, methylation...
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Transcription in eukaryotes is associated with two major changes in chromatin organization. Firstly, nucleosomal histones are continuously replaced by new histones, an event that in yeast occurs predominantly at transcriptionally active promoters. Secondly, histones become modified post-translationally at specific lysine residues. Some modifications, including histone H3 trimethylation at lysin...
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Gene expression in higher organisms is thought to be regulated by a complex network of transcription factor binding and chromatin modifications, yet the relative importance of these two factors remains a matter of debate. Here, we show that a computational approach allows surprisingly accurate prediction of histone modifications solely from knowledge of transcription factor binding both at prom...
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ژورنال
عنوان ژورنال: Oncotarget
سال: 2015
ISSN: 1949-2553
DOI: 10.18632/oncotarget.6437