Results 21 to 30 of about 18,176 (172)

An African tick flavivirus forming an independent clade exhibits unique exoribonuclease-resistant RNA structures in the genomic 3′-untranslated region

open access: yesScientific Reports, 2021
Tick-borne flaviviruses (TBFVs) infect mammalian hosts through tick bites and can cause various serious illnesses, such as encephalitis and hemorrhagic fevers, both in humans and animals.
Hayato Harima   +19 more
doaj   +1 more source

Xrn1 is a deNADding enzyme modulating mitochondrial NAD-capped RNA

open access: yesNature Communications, 2022
The cytoplasmic Xrn1 protein has long been established as the predominate 5′ to 3′ exoribonuclease that cleaves RNAs with an unprotected 5′ monophosphate end. Here the authors demonstrate Xrn1 can also degrade RNAs harboring the noncanonical nicotinamide
Sunny Sharma   +5 more
doaj   +1 more source

A 212-nt long RNA structure in the Tobacco necrosis virus-D RNA genome is resistant to Xrn degradation [PDF]

open access: yes, 2019
Plus-strand RNA viruses can accumulate viral RNA degradation products during infections. Some of these decay intermediates are generated by the cytosolic 5′-to-3′ exoribonuclease Xrn1 (mammals and yeast) or Xrn4 (plants) and are formed when the enzyme ...
Chaminda, Gunawardene D.   +2 more
core   +1 more source

The Curious Case of the Nidovirus Exoribonuclease: Its Role in RNA Synthesis and Replication Fidelity

open access: yesFrontiers in Microbiology, 2019
Among RNA viruses, the order Nidovirales stands out for including viruses with the largest RNA genomes currently known. Nidoviruses employ a complex RNA-synthesizing machinery comprising a variety of non-structural proteins (nsps).
Natacha S. Ogando   +6 more
doaj   +1 more source

Exome resequencing and GWAS for growth, ecophysiology, and chemical and metabolomic composition of wood of Populus trichocarpa. [PDF]

open access: yes, 2019
BackgroundPopulus trichocarpa is an important forest tree species for the generation of lignocellulosic ethanol. Understanding the genomic basis of biomass production and chemical composition of wood is fundamental in supporting genetic improvement ...
Davis, Mark F   +10 more
core   +1 more source

RISC-interacting clearing 3’- 5’ exoribonucleases (RICEs) degrade uridylated cleavage fragments to maintain functional RISC in Arabidopsis thaliana

open access: yeseLife, 2017
RNA-induced silencing complex (RISC) is composed of miRNAs and AGO proteins. AGOs use miRNAs as guides to slice target mRNAs to produce truncated 5' and 3' RNA fragments. The 5' cleaved RNA fragments are marked with uridylation for degradation.
Zhonghui Zhang   +9 more
doaj   +1 more source

RRP6 from Trypanosoma brucei: crystal structure of the catalytic domain, association with EAP3 and activity towards structured and non-structured RNA substrates. [PDF]

open access: yesPLoS ONE, 2014
RRP6 is a 3'-5' exoribonuclease associated to the eukaryotic exosome, a multiprotein complex essential for various RNA processing and degradation pathways.
Rosicler L Barbosa   +5 more
doaj   +1 more source

A Novel Epigenetic Silencing Pathway Involving the Highly Conserved 5'-3' Exoribonuclease Dhp1/Rat1/Xrn2 in Schizosaccharomyces pombe. [PDF]

open access: yesPLoS Genetics, 2016
Epigenetic gene silencing plays a critical role in regulating gene expression and contributes to organismal development and cell fate acquisition in eukaryotes.
James Franklin Tucker   +6 more
doaj   +1 more source

The 5' → 3' exoribonuclease XRN1/Pacman and its functions in cellular processes and development [PDF]

open access: yes, 2012
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

A brief overview of current drug repurposing approaches for COVID-19 management [PDF]

open access: yes, 2020
This brief overview is intended to shed light on the current drug repositioning (also called drug repurposing) in the therapeutics of the novel coronavirus disease which emerged in 2019 (COVID-19).
Rodrigues, Pedro da Fonseca Soares   +1 more
core   +2 more sources

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