Differential chromatin marking of introns and expressed exons by H3K36me3.
TLDR
It is proposed that H3K36me3 exon marking in chromatin provides a dynamic link between transcription and splicing, and is found at lower levels in alternatively spliced exons, supporting a splicing-related marking mechanism.Abstract:
Variation in patterns of methylations of histone tails reflects and modulates chromatin structure and function1-3. To provide a framework for the analysis of chromatin function in C. elegans, we generated a genome-wide map of histone H3 tail methylations. We find that C. elegans genes show similarities in distributions of histone modifications to those of other organisms, with H3K4me3 near transcription start sites, H3K36me3 in the body of genes, and H3K9me3 enriched on silent genes. Unexpectedly, we also observe a striking novel pattern: exons are preferentially marked with H3K36me3 relative to introns. H3K36me3 exon marking is dependent on transcription and its level is lower in alternatively spliced exons, supporting a splicing related marking mechanism. We further show that the difference in H3K36me3 marking between exons and introns is evolutionarily conserved in human and mouse. We propose that H3K36me3 exon marking in chromatin provides a dynamic link between transcription and splicing.read more
Citations
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DNA methylation age of human tissues and cell types
TL;DR: It is proposed that DNA methylation age measures the cumulative effect of an epigenetic maintenance system, and can be used to address a host of questions in developmental biology, cancer and aging research.
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Driver mutations in histone H3.3 and chromatin remodelling genes in paediatric glioblastoma
Jeremy Schwartzentruber,Andrey Korshunov,Xiaoyang Liu,David T.W. Jones,Elke Pfaff,Karine Jacob,Dominik Sturm,Adam M. Fontebasso,Dong Anh Khuong Quang,Martje Tönjes,Volker Hovestadt,Steffen Albrecht,Marcel Kool,André Nantel,Carolin Konermann,Anders Lindroth,Natalie Jäger,Tobias Rausch,Marina Ryzhova,Jan O. Korbel,Thomas Hielscher,Peter Hauser,Miklós Garami,Almos Klekner,László Bognár,Martin Ebinger,Martin U. Schuhmann,Wolfram Scheurlen,Arnulf Pekrun,Michael C. Frühwald,Wolfgang Roggendorf,CM Kramm,Matthias Dürken,Jeffrey Atkinson,Pierre Lepage,Alexandre Montpetit,Magdalena Zakrzewska,Krzystof Zakrzewski,Pawel P. Liberski,Zhifeng Dong,Peter M. Siegel,Andreas E. Kulozik,Marc Zapatka,Abhijit Guha,David Malkin,Jörg Felsberg,Guido Reifenberger,Andreas von Deimling,Andreas von Deimling,Koichi Ichimura,V. Peter Collins,Hendrik Witt,Hendrik Witt,Till Milde,Till Milde,Olaf Witt,Olaf Witt,Cindy Zhang,Pedro Castelo-Branco,Peter Lichter,Damien Faury,Uri Tabori,Christoph Plass,Jacek Majewski,Stefan M. Pfister,Stefan M. Pfister,Nada Jabado +66 more
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Expansion of the eukaryotic proteome by alternative splicing
TL;DR: It is now clear that the 'missing' information is in large part provided by alternative splicing, the process by which multiple different functional messenger RNAs, and therefore proteins, can be synthesized from a single gene.
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Transcription factors: from enhancer binding to developmental control.
TL;DR: Current knowledge of transcription factor function from genomic and genetic studies is reviewed and how different strategies, including extensive cooperative regulation, progressive priming of regulatory elements, and the integration of activities from multiple enhancers, confer specificity and robustness to transcriptional regulation during development are discussed.
Journal ArticleDOI
Histone methylation: a dynamic mark in health, disease and inheritance
Eric L. Greer,Yang Shi +1 more
TL;DR: This work provides a broad overview of how histone methylation is regulated and leads to biological outcomes and suggests its links to disease and ageing and possibly to transmission of traits across generations are illustrated.
References
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