Results 31 to 40 of about 14,275 (206)
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
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The Regulatory Properties of the Ccr4–Not Complex
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
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Identification of novel post-transcriptional features in olfactory receptor family mRNAs. [PDF]
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
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RNA deadenylation complexes in development and diseases
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
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CUG-BP and 3'UTR sequences influence PARN-mediated deadenylation in mammalian cell extracts
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
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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
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Embryo Deadenylation Element-Dependent Deadenylation Is Enhanced by a cis Element Containing AUU Repeats [PDF]
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
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Cytoplasmic deadenylation: regulation of mRNA fate [PDF]
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
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To translate, or not to translate: viral and host mRNA regulation by interferon-stimulated genes. [PDF]
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
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
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