Results 31 to 40 of about 3,207 (126)

Synthesis of 5’ end-labeled RNA

open access: yesBio-Protocol, 2012
5’ end-labeled RNA molecules are useful substrates to analyse the endo- and exonucleolytic activities of various ribonucleases. Here two protocols are given to synthesize P32 labeled RNAs with a 5’ PPP or 5’ P moiety. 5’ exoribonucleases generally do not
Harald Putzer
doaj   +1 more source

PNPase is involved in the coordination of mRNA degradation and expression in stationary phase cells of Escherichia coli

open access: yesBMC Genomics, 2018
Background Exoribonucleases are crucial for RNA degradation in Escherichia coli but the roles of RNase R and PNPase and their potential overlap in stationary phase are not well characterized.
Clémentine Dressaire   +5 more
doaj   +1 more source

Rapid Depletion of DIS3, EXOSC10, or XRN2 Reveals the Immediate Impact of Exoribonucleolysis on Nuclear RNA Metabolism and Transcriptional Control

open access: yesCell Reports, 2019
Summary: Cell-based studies of human ribonucleases traditionally rely on methods that deplete proteins slowly. We engineered cells in which the 3′→5′ exoribonucleases of the exosome complex, DIS3 and EXOSC10, can be rapidly eliminated to assess their ...
Lee Davidson   +7 more
doaj   +1 more source

Nuclease Activity of the Junín Virus Nucleoprotein C-Terminal Domain

open access: yesViruses, 2023
The mammarenavirus Junín (JUNV) is the causative agent of Argentine hemorrhagic fever, a severe disease of public health concern. The most abundant viral protein is the nucleoprotein (NP), a multifunctional, two-domain protein with the primary role as ...
Alicia Armella Sierra   +6 more
doaj   +1 more source

The conserved stem-loop II structure at the 3' untranslated region of Japanese encephalitis virus genome is required for the formation of subgenomic flaviviral RNA.

open access: yesPLoS ONE, 2018
Flaviviruses accumulate abundant subgenomic RNA (sfRNA) in infected cells. It has been reported that sfRNA results from stalling of host 5'-to-3' exoribonuclease XRN1 at the highly structured RNA of the 3' untranslated region (UTR).
Yi-Shiuan Chen   +4 more
doaj   +1 more source

RNase J1 and J2 Are Host-Encoded Factors for Plasmid Replication

open access: yesFrontiers in Microbiology, 2021
Plasmids need to ensure their transmission to both daughter-cells when their host divides, but should at the same time avoid overtaxing their hosts by directing excessive host-resources toward production of plasmid factors.
Vanessa Andrade Guimarães   +10 more
doaj   +1 more source

Polyadenylated RNA Sampling

open access: yesBio-Protocol, 2012
Polyadenylation is a post-transcriptional modification of RNA occurring in prokaryotes, eukaryotes and organelles. However, the function and extent of bacterial polyadenylation are in marked contrast to those of eukaryotic poly(A) tails.
Eliane Hajnsdorf
doaj   +1 more source

Composition and function of P bodies in Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2014
mRNA accumulation is tightly regulated by diverse molecular pathways. The identification and characterization of enzymes and regulatory proteins involved in controlling the fate of mRNA offers the possibility to broaden our understanding of ...
Luis David Maldonado-Bonilla
doaj   +1 more source

Modulating the RNA processing and decay by the exosome: altering Rrp44/Dis3 activity and end-product. [PDF]

open access: yesPLoS ONE, 2013
In eukaryotes, the exosome plays a central role in RNA maturation, turnover, and quality control. In Saccharomyces cerevisiae, the core exosome is composed of nine catalytically inactive subunits constituting a ring structure and the active nuclease ...
Filipa P Reis   +8 more
doaj   +1 more source

The nucleolar protein NOL12 is required for processing of large ribosomal subunit rRNA precursors in Arabidopsis

open access: yesBMC Plant Biology, 2023
Background NOL12 5′-3′ exoribonucleases, conserved among eukaryotes, play important roles in pre-rRNA processing, ribosome assembly and export. The most well-described yeast counterpart, Rrp17, is required for maturation of 5.8 and 25S rRNAs, whereas ...
Monika Zakrzewska-Placzek   +5 more
doaj   +1 more source

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