Results 51 to 60 of about 123,331 (250)

DPAC: A Tool for Differential Poly(A)–Cluster Usage from Poly(A)–Targeted RNAseq Data

open access: yesG3: Genes, Genomes, Genetics, 2019
Poly(A)-tail targeted RNAseq approaches, such as 3′READS, PAS-Seq and Poly(A)-ClickSeq, are becoming popular alternatives to random-primed RNAseq to focus sequencing reads just to the 3′ ends of polyadenylated RNAs to identify poly(A)-sites and ...
Andrew Routh
doaj   +1 more source

Maternal NAT10 orchestrates oocyte meiotic cell-cycle progression and maturation in mice

open access: yesNature Communications, 2023
In mammals, the production of mature oocytes necessitates rigorous regulation of the discontinuous meiotic cell-cycle progression at both the transcriptional and post-transcriptional levels. However, the factors underlying this sophisticated but explicit
Xue Jiang   +14 more
doaj   +1 more source

Proteasomal degradation of intracellularly expressed Amblyomin‐X limits suicide gene therapy potential in melanoma cells

open access: yesFEBS Open Bio, EarlyView.
This study explores the feasibility of expressing the antitumoral protein Amblyomin‐X through a suicide gene therapy approach and investigates its intracellular fate after gene delivery. Although the gene is efficiently expressed, melanoma cells rapidly degrade the Amblyomin‐X protein via proteasome activity.
Victor Dal Posolo Cinel   +4 more
wiley   +1 more source

Poly(A) Tail Regulation in the Nucleus

open access: yes, 2022
The RNA metabolism involves different steps from transcription to translation and decay of messenger RNAs (mRNAs). Most mRNAs have a poly(A) tail attached to their 3’-end, which protects them from degradation and stimulates translation. Removal of the poly(A) tail is the rate-limiting step in RNA decay controlling stability and translation.
openaire   +2 more sources

Two phases in the addition of a poly(A) tail. [PDF]

open access: yesGenes & Development, 1989
The addition of a poly(A) tail has been examined in a HeLa cell nuclear extract using SV40 late RNAs that end at or near the natural poly(A) site. We find that the addition of a full-length, 200-nucleotide poly(A) tail occurs in two discrete phases. In the first phase, the addition of each adenosine is dependent on the highly conserved sequence AAUAAA.
M D, Sheets, M, Wickens
openaire   +2 more sources

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

BTG2 bridges PABPC1 RNA-binding domains and CAF1 deadenylase to control cell proliferation

open access: yesNature Communications, 2016
BTG2 promotes mRNA poly(A) tail shortening and regulates cellular differentiation. Here, Stupfler et al. show that the BTG2 APRO domain interacts with PABPC1 RRM1, allowing the former to recruit and stimulate the poly(A) tail shortening activity of CAF1 ...
Benjamin Stupfler   +3 more
doaj   +1 more source

Impact of poly(A)-tail G-content on Arabidopsis PAB binding and their role in enhancing translational efficiency

open access: yesGenome Biology, 2019
Background Polyadenylation plays a key role in producing mature mRNAs in eukaryotes. It is widely believed that the poly(A)-binding proteins (PABs) uniformly bind to poly(A)-tailed mRNAs, regulating their stability and translational efficiency.
Taolan Zhao   +11 more
doaj   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

open access: yesFEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji   +2 more
wiley   +1 more source

Birth of a poly(A) tail: mechanisms and control of mRNA polyadenylation

open access: yesFEBS Open Bio, 2023
During their synthesis in the cell nucleus, most eukaryotic mRNAs undergo a two‐step 3′‐end processing reaction in which the pre‐mRNA is cleaved and released from the transcribing RNA polymerase II and a polyadenosine (poly(A)) tail is added to the newly
Juan B. Rodríguez‐Molina   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy