2012
DOI: 10.1016/j.cell.2012.03.022
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The Poly(A)-Binding Protein Nuclear 1 Suppresses Alternative Cleavage and Polyadenylation Sites

Abstract: Alternative cleavage and polyadenylation (APA) is emerging as an important layer of gene regulation. Factors controlling APA are largely unknown. We developed a reporter-based RNAi screen for APA and identified PABPN1 as a regulator of this process. Genome-wide analysis of APA in human cells showed that loss of PABPN1 resulted in extensive 3' untranslated region shortening. Messenger RNA transcription, stability analyses, and in vitro cleavage assays indicated enhanced usage of proximal cleavage sites (CSs) as… Show more

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Cited by 315 publications
(421 citation statements)
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“…RBPs can also regulate the poly(A) tail length and control the stability and half-life of the mRNA while playing a role in poly(A) signal selection before cleavage and polyadenylation. For example, PABPN1, a nuclear poly(A)-binding protein, suppresses the use of weaker proximal signals and also stimulates PAPs to catalyze the addition of the poly(A) tail (Jenal et al 2012). Downregulation of PABPN1 has been linked to disease-specific APA patterns in heart failure, supporting the emerging roles of RBPs and APA-regulated 3′-UTR length modulation cases in diseases (Creemers et al 2016).…”
Section: Role Of Rbps In Apa Decisionsmentioning
confidence: 99%
“…RBPs can also regulate the poly(A) tail length and control the stability and half-life of the mRNA while playing a role in poly(A) signal selection before cleavage and polyadenylation. For example, PABPN1, a nuclear poly(A)-binding protein, suppresses the use of weaker proximal signals and also stimulates PAPs to catalyze the addition of the poly(A) tail (Jenal et al 2012). Downregulation of PABPN1 has been linked to disease-specific APA patterns in heart failure, supporting the emerging roles of RBPs and APA-regulated 3′-UTR length modulation cases in diseases (Creemers et al 2016).…”
Section: Role Of Rbps In Apa Decisionsmentioning
confidence: 99%
“…3B). Investigation into the mechanism of mRNA APA is still at an early stage but it likely involves general effects through bulk levels of the polyadenylation machinery (53,54), interaction of the machinery with other mRNA-processing factors (54,55), as well as more gene-specific effects through cis-regulatory elements. APA is widespread and can be controlled by both differentiation and proliferation states as 3 0 UTRs lengthen during embryonic development and shorten in the generation of induced pluripotent stem cells (51,53).…”
Section: Mrnamentioning
confidence: 99%
“…According to the mainstream view, functions of 3′ UTR are mediated by micro-RNA, AU-rich-element and RNA-binding proteins (RBPs) etc [6]. In general, there are more microRNA target sites in the longer 3′ UTR region, mRNA with a longer 3′ UTR displays reduced translation, whereas mRNA with shorter one has a high level of translation [4].…”
Section: Introductionmentioning
confidence: 99%
“…In other words, mRNA with paroximal ApA site or distal ApA site corresponds to short or long 3′ UTR separately, while the exons of mRNA remain unaltered. The 3′ UTR plays a significant role in post-transcriptional regulation such as regulating mRNA stability, localization, rate of protein synthesis and localization of membrane proteins [5,6]. Dysregulation of 3′ UTR has been proven to be related to a number of diseases, such as cancer, cardiovascular diseases and autoimmune diseases [7].…”
Section: Introductionmentioning
confidence: 99%