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Cited by 191

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Widespread Inhibition of Posttranscriptional Splicing Shapes the Cellular Transcriptome following Heat Shock

Open access
Shalgi, Reut, Hurt, Jessica A., Lindquist, Susan, Burge, Christopher B.·2014·Cell Reports

Abstract

During heat shock and other proteotoxic stresses, cells regulate multiple steps in gene expression in order to globally repress protein synthesis and selectively upregulate stress response proteins. Splicing of several mRNAs is known to be inhibited during heat stress, often meditated by SRp38, but the extent and specificity of this effect have remained unclear. Here, we examined splicing regulation genome-wide during heat shock in mouse fibroblasts. We observed widespread retention of introns in transcripts from ∼1,700 genes, which were enriched for tRNA synthetase, nuclear pore, and spliceosome functions. Transcripts with retained introns were largely nuclear and untranslated. However, a group of 580+ genes biased for oxidation reduction and protein folding functions continued to be efficiently spliced. Interestingly, these unaffected transcripts are mostly cotranscriptionally spliced under both normal and stress conditions, whereas splicing-inhibited transcripts are mostly spliced posttranscriptionally. Altogether, our data demonstrate widespread repression of splicing in the mammalian heat stress response, disproportionately affecting posttranscriptionally spliced genes.

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Crossref · 10.1016/j.celrep.2014.04.044

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Metadata

Authors
Shalgi, R., Hurt, J. A., Lindquist, S., & Burge, C. B.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2014-06
Volume
7
Issue
5
Pages
1362-1370
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2078779750
Cited by
191
References
3
FWCI
6.21
Type
journal article
Language
en
Open access
gold

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