Results 21 to 30 of about 3,207 (126)

How hydrolytic exoribonucleases impact human disease: Two sides of the same story

open access: yesFEBS Open Bio, 2023
RNAs are extremely important molecules inside the cell, which perform many different functions. For example, messenger RNAs, transfer RNAs and ribosomal RNAs are involved in protein synthesis, whereas noncoding RNAs have numerous regulatory roles ...
Susana M. Costa   +4 more
doaj   +1 more source

Analysis of mRNA Decay Intermediates in Bacillus subtilis 3′ Exoribonuclease and RNA Helicase Mutant Strains

open access: yesmBio, 2022
The Bacillus subtilis genome encodes four 3′ exoribonucleases: polynucleotide phosphorylase (PNPase), RNase R, RNase PH, and YhaM. Previous work showed that PNPase, encoded by the pnpA gene, is the major 3′ exonuclease involved in mRNA turnover; in a ...
Shivani Chhabra   +4 more
doaj   +1 more source

Landscape of functional interactions of human processive ribonucleases revealed by high-throughput siRNA screenings

open access: yesiScience, 2021
Summary: Processive exoribonucleases are executors of RNA decay. In humans, their physical but not functional interactions were thoughtfully investigated. Here we have screened cells deficient in DIS3, XRN2, EXOSC10, DIS3L, and DIS3L2 with a custom siRNA
Anna Hojka-Osinska   +7 more
doaj   +1 more source

Global Characterization of XRN 5′-3′ Exoribonucleases and Their Responses to Environmental Stresses in Plants

open access: yesDiversity, 2021
The XRN family of 5′-3′ Exoribonucleases is functionally conserved in eukaryotic organisms. However, the molecular evolution of XRN proteins in plants and their functions in plant response to environment stresses remain largely unexplored. In this study,
Weimeng Song   +5 more
doaj   +1 more source

Localization of components of the RNA-degrading machine in Bacillus subtilis

open access: yesFrontiers in Microbiology, 2016
In bacteria, the control of mRNA stability is crucial to allow rapid adaptation to changing conditions. In most bacteria, RNA degradation is catalyzed by the RNA degradosome, a protein complex composed of endo- and exoribonucleases, RNA helicases and ...
Nora Cascante-Estepa   +2 more
doaj   +1 more source

Shared properties and singularities of exoribonuclease-resistant RNAs in viruses

open access: yesComputational and Structural Biotechnology Journal, 2021
What viral RNA genomes lack in size, they make up for in intricacy. Elaborate RNA structures embedded in viral genomes can hijack essential cellular mechanisms aiding virus propagation.
Quentin Vicens, Jeffrey S. Kieft
doaj   +1 more source

Burning the Candle at Both Ends: Have Exoribonucleases Driven Divergence of Regulatory RNA Mechanisms in Bacteria?

open access: yesmBio, 2021
Regulatory RNAs have emerged as ubiquitous gene regulators in all bacterial species studied to date. The combination of sequence-specific RNA interactions and malleable RNA structure has allowed regulatory RNA to adopt different mechanisms of gene ...
Daniel G. Mediati   +2 more
doaj   +1 more source

A dedicated diribonuclease resolves a key bottleneck for the terminal step of RNA degradation

open access: yeseLife, 2019
Degradation of RNA polymers, an ubiquitous process in all cells, is catalyzed by specific subsets of endo- and exoribonucleases that together recycle RNA fragments into nucleotide monophosphate.
Soo-Kyoung Kim   +8 more
doaj   +1 more source

Depletion of trypanosome CTR9 leads to gene expression defects. [PDF]

open access: yesPLoS ONE, 2012
The Paf complex of Opisthokonts and plants contains at least five subunits: Paf1, Cdc73, Rtf1, Ctr9, and Leo1. Mutations in, or loss of Paf complex subunits have been shown to cause defects in histone modification, mRNA polyadenylation, and transcription
Benard A Ouna   +6 more
doaj   +1 more source

Moonlighting in Bacillus subtilis: The Small Proteins SR1P and SR7P Regulate the Moonlighting Activity of Glyceraldehyde 3-Phosphate Dehydrogenase A (GapA) and Enolase in RNA Degradation

open access: yesMicroorganisms, 2021
Moonlighting proteins are proteins with more than one function. During the past 25 years, they have been found to be rather widespread in bacteria. In Bacillus subtilis, moonlighting has been disclosed to occur via DNA, protein or RNA binding or protein ...
Inam Ul Haq, Sabine Brantl
doaj   +1 more source

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