Results 31 to 40 of about 14,275 (206)

MicroRNAs direct rapid deadenylation of mRNA [PDF]

open access: yesProceedings of the National Academy of Sciences, 2006
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

The Regulatory Properties of the Ccr4–Not Complex

open access: yesCells, 2020
The mammalian Ccr4–Not complex, carbon catabolite repression 4 (Ccr4)-negative on TATA-less (Not), is a large, highly conserved, multifunctional assembly of proteins that acts at different cellular levels to regulate gene expression.
Nafiseh Chalabi Hagkarim, Roger J. Grand
doaj   +1 more source

Identification of novel post-transcriptional features in olfactory receptor family mRNAs. [PDF]

open access: yes, 2015
Olfactory receptor (Olfr) genes comprise the largest gene family in mice. Despite their importance in olfaction, how most Olfr mRNAs are regulated remains unexplored.
Espinoza, Josh L   +3 more
core   +1 more source

RNA deadenylation complexes in development and diseases

open access: yesBiochemistry and Cell Biology, 2023
RNA deadenylation, the process of shortening of the 3′ poly(A) tail of an RNA molecule, is one of the key steps of post-transcriptional regulation of gene expression in eukaryotic cells. PAN2/3 and CCR4-NOT (CNOT) are the two dominant RNA deadenylation complexes, which play central roles in mediating mRNA decay and translation.
Yilin Liu, Niveditha Ramkumar, Ly P. Vu
openaire   +2 more sources

CUG-BP and 3'UTR sequences influence PARN-mediated deadenylation in mammalian cell extracts

open access: yesGenetics and Molecular Biology, 2007
Several mRNAs have been shown to exhibit distinct patterns of poly(A) shortening prior to their decay in vivo. In this study, we show that individual transcripts also demonstrate distinct patterns of deadenylation in in vitro systems derived from HeLa ...
Karen C.M. Moraes   +2 more
doaj   +1 more source

CNOT1 regulates circadian behaviour through Per2 mRNA decay in a deadenylation-dependent manner

open access: yesRNA Biology, 2022
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

Embryo Deadenylation Element-Dependent Deadenylation Is Enhanced by a cis Element Containing AUU Repeats [PDF]

open access: yesMolecular and Cellular Biology, 1998
The deadenylation of maternal mRNAs in the Xenopus embryo is a sequence-specific process. One cis element that targets maternal mRNAs for deadenylation after fertilization is the embryo deadenylation element (EDEN). This element, composed of U/R repeats, is specifically bound by a protein, EDEN-BP. In the present study we show that the rate at which an
Audic, Yann   +2 more
openaire   +2 more sources

Cytoplasmic deadenylation: regulation of mRNA fate [PDF]

open access: yesBiochemical Society Transactions, 2010
The poly(A) tail of mRNA has an important influence on the dynamics of gene expression. On one hand, it promotes enhanced mRNA stability to allow production of the protein, even after inactivation of transcription. On the other hand, shortening of the poly(A) tail (deadenylation) slows down translation of the mRNA, or prevents it entirely, by inducing ...
Katrin, Wiederhold, Lori A, Passmore
openaire   +2 more sources

To translate, or not to translate: viral and host mRNA regulation by interferon-stimulated genes. [PDF]

open access: yes, 2015
Type I interferon (IFN) is one of the first lines of cellular defense against viral pathogens. As a result of IFN signaling, a wide array of IFN-stimulated gene (ISG) products is upregulated to target different stages of the viral life cycle.
Li, Melody MH   +2 more
core   +1 more source

Single molecule poly(A) tail-seq shows LARP4 opposes deadenylation throughout mRNA lifespan with most impact on short tails

open access: yeseLife, 2020
La-related protein 4 (LARP4) directly binds both poly(A) and poly(A)-binding protein (PABP). LARP4 was shown to promote poly(A) tail (PAT) lengthening and stabilization of individual mRNAs presumably by protection from deadenylation (Mattijssen et al ...
Sandy Mattijssen   +4 more
doaj   +1 more source

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