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2013 ; 1829
(6-7
): 680-8
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Post-transcriptional control of gene expression by AUF1: mechanisms,
physiological targets, and regulation
#MMPMID23246978
White EJ
; Brewer G
; Wilson GM
Biochim Biophys Acta
2013[Jun]; 1829
(6-7
): 680-8
PMID23246978
show ga
AUF1 is a family of four proteins generated by alternative pre-mRNA splicing that
form high affinity complexes with AU-rich, mRNA-destabilizing sequences located
within the 3' untranslated regions of many labile mRNAs. While AUF1 binding is
most frequently associated with accelerated mRNA decay, emerging examples have
demonstrated roles as a mRNA stabilizer or even translational regulator for
specific transcripts. In this review, we summarize recent advances in our
understanding of mRNA recognition by AUF1 and the biochemical and functional
consequences of these interactions. In addition, unique properties of individual
AUF1 isoforms and the roles of these proteins in modulating expression of genes
associated with inflammatory, neoplastic, and cardiac diseases are discussed.
Finally, we describe mechanisms that regulate AUF1 expression in cells, and
current knowledge of regulatory switches that modulate the cellular levels and/or
activities of AUF1 isoforms through distinct protein post-translational
modifications. This article is part of a Special Issue entitled: RNA Decay
mechanisms.