Results 61 to 70 of about 14,150 (193)

Molecular Basis for poly(A) RNP Architecture and Recognition by the Pan2-Pan3 Deadenylase

open access: yes, 2019
The stability of eukaryotic mRNAs is dependent on a ribonucleoprotein (RNP) complex of poly(A)-binding proteins (PABPC1/Pab1) organized on the poly(A) tail.
Conti, E.   +6 more
core   +1 more source

MicroRNA in control of gene expression: An overview of nuclear functions [PDF]

open access: yes, 2016
The finding that small non-coding RNAs (ncRNAs) are able to control gene expression in a sequence specific manner has had a massive impact on biology. Recent improvements in high throughput sequencing and computational prediction methods have allowed the
Catalanotto, Caterina   +2 more
core   +2 more sources

ELAV proteins stabilize deadenylated intermediates in a novel in vitro mRNA deadenylation/degradation system

open access: yesGenes & Development, 1999
We have developed an in vitro mRNA stability system using HeLa cell cytoplasmic S100 extracts and exogenous polyadenylated RNA substrates that reproduces regulated aspects of mRNA decay. The addition of cold poly(A) competitor RNA activated both a sequence-specific deadenylase activity in the extracts as well as a potent, ATP-dependent ribonucleolytic ...
L P, Ford   +3 more
openaire   +2 more sources

Translation efficiency is a determinant of the magnitude of miRNA-mediated repression [PDF]

open access: yes, 2017
MicroRNAs are well known regulators of mRNA stability and translation. However, the magnitude of both translational repression and mRNA decay induced by miRNA binding varies greatly between miRNA targets.
Cottrell, Kyle A   +2 more
core   +3 more sources

Biochemical and in silico identification of the active site and the catalytic mechanism of the circadian deadenylase HESPERIN

open access: yesFEBS Open Bio, 2022
The 24‐h molecular clock is based on the stability of rhythmically expressed transcripts. The shortening of the poly(A) tail of mRNAs is often the first and rate‐limiting step that determines the lifespan of a mRNA and is catalyzed by deadenylases ...
Rafailia A. A. Beta   +7 more
doaj   +1 more source

Molecular medicine of microRNAs: structure, function and implications for diabetes [PDF]

open access: yes, 2008
MicroRNAs (miRNAs) are a family of endogenous small noncoding RNA molecules, of 19–28 nucleotides in length. In humans, up to 3% of all genes are estimated to encode these evolutionarily conserved sequences.
Duncan   +5 more
core   +1 more source

Molecular mechanism of ischemic postconditioning in promoting diabetic ischemic brain injury repair via the microRNA‐34a–BDNF–SIX3 signaling axis

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao   +5 more
wiley   +1 more source

Multifunctional roles of the mammalian CCR4-NOT complex in physiological phenomena

open access: yesFrontiers in Genetics, 2014
The CCR4-NOT complex serves as one of the major deadenylases of eukaryotes. Although it was originally identified and characterized in yeast, recent studies have revealed that the CCR4-NOT complex also exerts important functions in mammals, including ...
Yo-Taro eShirai   +5 more
doaj   +1 more source

The eIF4E-binding protein Eap1p functions in Vts1p-mediated transcript decay. [PDF]

open access: yesPLoS ONE, 2012
Sequence-specific RNA binding proteins can induce the degradation of mRNAs through their ability to recruit proteins that trigger transcript destabilization. For example, Vts1p, the S.
Laura M Rendl   +3 more
doaj   +1 more source

Genome-wide profiling of uncapped mRNA [PDF]

open access: yes, 2012
Gene transcripts are under extensive posttranscriptional regulation, including the regulation of their stability. A major route for mRNA degradation produces uncapped mRNAs, which can be generated by decapping enzymes, endonucleases, and small RNAs ...
BD Gregory   +9 more
core   +2 more sources

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