Journal
BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS
Volume 1829, Issue 6-7, Pages 666-679Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbagrm.2013.02.003
Keywords
Tristetraprolin; Post-transcriptional regulation; mRNA stability; mRNA translation; AU-rich element
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Funding
- Intramural NIH HHS [ZIA ES090080-15] Funding Source: Medline
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Changes in mRNA stability and translation are critical control points in the regulation of gene expression, particularly genes encoding growth factors, inflammatory mediators, and proto-oncogenes. Adenosine and uridine (AU)-rich elements (ARE), often located in the 3' untranslated regions (3'UTR) of mRNAs, are known to target transcripts for rapid decay. They are also involved in the regulation of mRNA stability and translation in response to extracellular cues. This review focuses on one of the best characterized ARE binding proteins, tristetraprolin (UP), the founding member of a small family of CCCH tandem zinc finger proteins. In this survey, we have reviewed the current status of UP interactions with mRNA and proteins, and discussed current thinking about TTP's mechanism of action to promote mRNA decay. We also review the proposed regulation of TTP's functions by phosphorylation. Finally, we have discussed emerging evidence for UP operating as a translational regulator. This article is part of a Special Issue entitled: RNA Decay mechanisms. Published by Elsevier B.V.
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