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EMBO J. 2010 May 19;29(10):1629-36. doi: 10.1038/emboj.2010.71. Epub 2010 Apr 20.

Chromatin density and splicing destiny: on the cross-talk between chromatin structure and splicing.

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  • 1Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel-Aviv University, Ramat Aviv, Israel.

Abstract

How are short exonic sequences recognized within the vast intronic oceans in which they reside? Despite decades of research, this remains one of the most fundamental, yet enigmatic, questions in the field of pre-mRNA splicing research. For many years, studies aiming to shed light on this process were focused at the RNA level, characterizing the manner by which splicing factors and auxiliary proteins interact with splicing signals, thereby enabling, facilitating and regulating splicing. However, we increasingly understand that splicing is not an isolated process; rather it occurs co-transcriptionally and is presumably also regulated by transcription-related processes. In fact, studies by our group and others over the past year suggest that DNA structure in terms of nucleosome positioning and specific histone modifications, which have a well established role in transcription, may also have a role in splicing. In this review we discuss evidence for the coupling between transcription and splicing, focusing on recent findings suggesting a link between chromatin structure and splicing, and highlighting challenges this emerging field is facing.

PMID:
20407423
[PubMed - indexed for MEDLINE]
PMCID:
PMC2876972
Free PMC Article
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