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ProteomicsDual agonistic and antagonistic roles of ZC3H18 provides for co-activation of distinct nuclear RNA decay pathways
The RNA exosome is a versatile ribonuclease. In the nucleoplasm of mammalian cells, it is assisted by its adaptors the Nuclear EXosome Targeting (NEXT) complex and the PolyA eXosome Targeting (PAXT) connection. Via its association with the ARS2 and ZC3H18 proteins, NEXT/exosome is recruited to cappe...
ORGANISM(S): Homo sapiens (Human) 
2024-01-26 | PXD045842 | Pride
Ars2 Nuclear rna decay Next Paxt Activation Zc3h18 Inhibition 
ProteomicsAn extended PAXT connection is required for turnover of nuclear polyadenylated RNA in human cells
Recruitment of the human ribonucleolytic RNA exosome to nuclear polyadenylated (pA+) RNA is facilitated by the Poly(A) Tail eXosome Targeting (PAXT) connection. Besides its core dimer, formed by the exosome co-factor MTR4 and the ZFC3H1 protein, the PAXT connection remains poorly defined. By charact...
ORGANISM(S): Homo Sapiens (human) 
2019-10-31 | PXD016070 | JPOST Repository
ProteomicsRNA-controlled nucleocytoplasmic shuttling of mRNA decay factors regulates mRNA synthesis and a novel mRNA decay pathway
mRNA level is controlled by factors that mediate both mRNA synthesis and decay, including the 5’ to 3’ exonuclease Xrn1 - a major mRNA synthesis and decay factor. Here we show that nucleocytoplasmic shuttling of several mRNA decay factors plays a key role in determining both mRNA synthesis and decay...
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) 
2022-09-19 | PXD036414 | Pride
Nucleocytoplasmic shuttling Xrn1 Mrna decay 
TranscriptomicsPervasive TTP binding but selective target mRNA destabilization in the macrophage transcriptome [RNA-Seq_2]
Precise control of mRNA decay is fundamental for robust yet not exaggerated inflammatory responses to pathogens. Parameters determining the specificity and extent of mRNA degradation within the entire inflammation-associated transcriptome remain incompletely understood. Using transcriptome-wide high...
ORGANISM(S): Mus musculus 
2016-05-17 | E-GEOD-78209 | biostudies-arrayexpress
TranscriptomicsGlobal analysis of mRNA decay intermediates in Saccharomyces cerevisiae
The general pathways of eukaryotic mRNA decay occur via deadenylation followed by 3’ to 5’ degradation or decapping, although some endonuclease sites have been identified in metazoan mRNAs. To determine the role of endonucleases in mRNA degradation in Saccharomyces cerevisiae, we mapped 5’ monophosp...
ORGANISM(S): Saccharomyces cerevisiae 
2012-06-17 | E-GEOD-33712 | biostudies-arrayexpress
TranscriptomicsRNAi knock down of known nonsense-mediated mRNA decay (NMD) factors in Drosophila cells
All eukaryotes studied to date have the capacity to detect and degrade mRNAs harboring premature translation termination codons (PTCs) in a process called nonsense-mediated mRNA decay (NMD) (reviewed in Wagner E & Lykke-Andersen J, 2002). This surveillance system allows the cell to prevent the expre...
ORGANISM(S): Drosophila melanogaster 
2005-11-01 | E-MEXP-202 | biostudies-arrayexpress
TranscriptomicsGenome-wide study of nuclear poly(A) binding protein Nab2p depletion
Polyadenylation of mRNA is a key step in eu- karyotic gene expression. However, despite the ma- jor impact of poly(A) tails on mRNA metabolism, the precise roles of poly(A)-binding proteins (PABPs) in nuclear mRNA biogenesis remain elusive. Here, we demonstrate that rapid nuclear depletion of the S....
ORGANISM(S): Saccharomyces cerevisiae 
2015-08-13 | E-GEOD-65001 | biostudies-arrayexpress
TranscriptomicsRNAi of human RHAU-depleted HeLa cells reveals The DExH-box RNA helicase RHAU is a nuclear protein involved in transcription and mRNA decay
RHAU (RNA helicase-associated with AU-rich element) is a DExH protein that was originally identified as a factor accelerating AU-rich element-mediated mRNA degradation. The finding that RHAU is predominantly localized in the nucleus, despite that mRNA degradation occurs in cytoplasm, prompted us to ...
ORGANISM(S): Homo sapiens 
2008-06-16 | E-GEOD-8192 | biostudies-arrayexpress
GenomicsA nuclear export block triggers the decay of newly synthesized polyadenylated RNA
A nuclear export block triggers the decay of newly synthesized polyadenylated RNA
PRJNA427344 | ENA
TranscriptomicsWidespread Co-translational RNA Decay Reveals Ribosome Dynamics
It is generally assumed that mRNAs undergoing translation are protected from decay. Here, we show that mRNAs are, in fact, co-translationally degraded. This is a widespread and conserved process affecting most genes, where 5′–3′ transcript degradation follows the last translating ribosome, producing...
ORGANISM(S): Schizosaccharomyces pombe 
2015-06-04 | E-GEOD-63120 | biostudies-arrayexpress
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