The Dynamic Poly(A) Tail Acts as a Signal Hub in mRNA Metabolism
In eukaryotes, mRNA metabolism requires a sophisticated signaling system. Recent studies have suggested that polyadenylate tail may play a vital role in such a system.
Guiying Zhang +4 more
doaj +1 more source
A functional deadenylation assay identifies human CUG‐BP as a deadenylation factor [PDF]
Abstract CUG‐BP is a human nuclear and cytoplasmic RNA‐binding protein. A role in the control of alternative splicing has been reported, but to date no cytoplasmic function for this protein has been demonstrated. A close sequence homolog of CUG‐BP is EDEN‐BP that is required for the specific cytoplasmic poly(A) tail shortening of certain mRNAs after ...
Paillard, Luc +2 more
openaire +2 more sources
Deadenylation and P-Bodies [PDF]
Deadenylation is the major step in triggering mRNA decay and results in mRNA translation inhibition in eukaryotic cells. Therefore, it is plausible that deadenylation also induces the mRNP remodeling required for formation of GW bodies or RNA processing bodies (P-bodies), which harbor translationally silenced mRNPs.
Chyi-Ying A, Chen, Ann-Bin, Shyu
openaire +2 more sources
Cap-dependent deadenylation of mRNA [PDF]
Poly(A) tail removal is often the initial and rate-limiting step in mRNA decay and is also responsible for translational silencing of maternal mRNAs during oocyte maturation and early development. Here we report that deadenylation in HeLa cell extracts and by a purified mammalian poly(A)-specific exoribonuclease, PARN (previously designated ...
E, Dehlin +3 more
openaire +2 more sources
A novel class of microRNA-recognition elements that function only within open reading frames. [PDF]
MicroRNAs (miRNAs) are well known to target 3' untranslated regions (3' UTRs) in mRNAs, thereby silencing gene expression at the post-transcriptional level.
A Aizer +85 more
core +2 more sources
The 5' → 3' exoribonuclease XRN1/Pacman and its functions in cellular processes and development [PDF]
XRN1 is a 5' → 3' processive exoribonuclease that degrades mRNAs after they have been decapped. It is highly conserved in all eukaryotes, including homologs in Drosophila melanogaster (Pacman), Caenorhabditis elegans (XRN1), and Saccharomyces cerevisiae (
Jones, Christopher Iain +2 more
core +1 more source
MicroRNAs direct rapid deadenylation of mRNA [PDF]
MicroRNAs (miRNAs) are ubiquitous regulators of eukaryotic gene expression. In addition to repressing translation, miRNAs can down-regulate the concentration of mRNAs that contain elements to which they are imperfectly complementary. Using miR-125b and let-7 as representative miRNAs, we show that in mammalian cells this reduction in message abundance ...
Ligang, Wu, Jihua, Fan, Joel G, Belasco
openaire +2 more sources
Viruses and the cellular RNA decay machinery. [PDF]
The ability to control cellular and viral gene expression, either globally or selectively, is central to a successful viral infection, and it is also crucial for the host to respond and eradicate pathogens.
Gaglia, Marta, Glaunsinger, Britt
core +1 more source
CNOT1 regulates circadian behaviour through Per2 mRNA decay in a deadenylation-dependent manner
Circadian clocks are an endogenous internal timekeeping mechanism that drives the rhythmic expression of genes, controlling the 24 h oscillatory pattern in behaviour and physiology.
Haytham Mohamed Aly Mohamed +6 more
doaj +1 more source
The 5' Cap Epitranscriptome and Beyond: Natural and Engineered 5' Cap Modifications for Optimizing mRNA Therapeutics and Functional Studies. [PDF]
5′ Cap modifications can be introduced via enzymes or chemical synthesis. Natural and non‐natural 5′ cap structures affect mRNA properties, including translation (T), stability (S), and/or immunogenicity (I). Eukaryotic mRNAs made by in vitro transcription have emerged as medical modalities for vaccination and protein replacement therapy. The 5′ cap is
Dahm GC +3 more
europepmc +2 more sources

