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2017 ; 18
(1
): 18-30
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Alternative polyadenylation of mRNA precursors
#MMPMID27677860
Tian B
; Manley JL
Nat Rev Mol Cell Biol
2017[Jan]; 18
(1
): 18-30
PMID27677860
show ga
Alternative polyadenylation (APA) is an RNA-processing mechanism that generates
distinct 3' termini on mRNAs and other RNA polymerase II transcripts. It is
widespread across all eukaryotic species and is recognized as a major mechanism
of gene regulation. APA exhibits tissue specificity and is important for cell
proliferation and differentiation. In this Review, we discuss the roles of APA in
diverse cellular processes, including mRNA metabolism, protein diversification
and protein localization, and more generally in gene regulation. We also discuss
the molecular mechanisms underlying APA, such as variation in the concentration
of core processing factors and RNA-binding proteins, as well as
transcription-based regulation.