Results 61 to 70 of about 4,960 (183)

The 5′ → 3′ exoribonuclease XRN1/Pacman and its functions in cellular processes and development

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 (
Christopher Iain Jones   +5 more
core   +2 more sources

Beet Necrotic Yellow Vein Virus Noncoding RNA Production Depends on a 5′→3′ Xrn Exoribonuclease Activity

open access: yesViruses, 2018
The RNA3 species of the beet necrotic yellow vein virus (BNYVV), a multipartite positive-stranded RNA phytovirus, contains the ‘core’ nucleotide sequence required for its systemic movement in Beta macrocarpa.
Alyssa Flobinus   +9 more
doaj   +1 more source

Dysregulated non-coding telomerase RNA component and associated exonuclease XRN1 in leucocytes from women developing preeclampsia-possible link to enhanced senescence

open access: yesScientific Reports, 2021
Senescence in placenta/fetal membranes is a normal phenomenon linked to term parturition. However, excessive senescence which may be induced by telomere attrition, has been associated with preeclampsia (PE). We hypothesized that the telomerase complex in
T. Lekva   +11 more
doaj   +1 more source

UCHL3 Regulates Subgenomic Flaviviral RNA Condensates to Promote Virus Propagation

open access: yesAdvanced Science, Volume 13, Issue 48, 28 August 2026.
ABSTRACT Flavivirus subgenomic RNAs (sfRNAs) antagonise antiviral defences, yet how sfRNAs are organized and maintained in cells remains poorly understood. Here we identify ubiquitin C‐terminal hydrolase L3 (UCHL3) as a post‐translational regulator of flavivirus sfRNA stability and function.
Oscar Trejo‐Cerro   +7 more
wiley   +1 more source

Role of XRN1 in WMVB.

open access: yes, 2018
(A-D) Insect Cellular mRNA stability is altered by DENV sfRNA. The half-life of ECR (A & B) and La (C&D) mRNA was determined in Aag2 and Aag2-wMel cells mock infected or infected with DENV after Actinomycin-D treatment by RT-qPCR.
Saijo Thomas (204009)   +3 more
core   +1 more source

DMS‐MaPseq and DREEM Analyses Implicate the Critical Role of RNA Structural Dynamics in Turnip Yellow Mosaic Virus Pathogenicity

open access: yesAdvanced Science, Volume 13, Issue 43, 3 August 2026.
RNA structural profiling of Turnip Yellow Mosaic Virus by DMS‐MaPseq and DREEM analyses uncover that viral genome‐wide RSS is highly complicated and heterogeneous, with alternative RSSs widely distributed across the genome. Notably, the viral 3’ tRNA‐like structure adopts alternative conformations in vivo.
Jiaying Zhu   +7 more
wiley   +1 more source

Noncoding RNAs and the Architecture of Gene Regulation: Focus on Long and Small Regulatory RNAs

open access: yesWIREs RNA, Volume 17, Issue 4, July/August 2026.
NcRNAs play fundamental roles in many facets of cellular homeostasis, systemic physiology and disease outcomes. Historical and current advancements have led to a deeper understanding of ncRNAs' roles, utilizing their diverse and tissue‐specific functions to drive the development of innovative therapeutic tools.
Samuel Z. Desind   +2 more
wiley   +1 more source

Decay of mRNAs targeted by RISC requires XRN1, the Ski complex, and the exosome [PDF]

open access: yesRNA, 2005
RNA interference (RNAi) is a conserved RNA silencing pathway that leads to sequence-specific mRNA decay in response to the presence of double-stranded RNA (dsRNA). Long dsRNA molecules are first processed by Dicer into 21–22-nucleotide small interfering RNAs (siRNAs).
Tamas I, Orban, Elisa, Izaurralde
openaire   +2 more sources

miRNA Sensor HuR Compartmentalizes Ago2‐Uncoupled miRNAs to Lipid Droplets to Buffer miRNA Activity in Mammalian Cells

open access: yesThe FASEB Journal, Volume 40, Issue 11, 15 June 2026.
This study revealed a dose‐dependent miRNA buffering mechanism involving extracellular export and storage of miRNA on lipid droplets. The protein HuR facilitates miRNA buffering by dissociating miRNAs from Ago2 and promoting miRNA accumulation on lipid droplets or its extracellular export, depending on cellular requirements.
Sreemoyee Chakraborty   +3 more
wiley   +1 more source

XRN1 stalling in the 5' UTR of Hepatitis C virus and Bovine Viral Diarrhea virus is associated with dysregulated host mRNA stability.

open access: yesPLoS Pathogens, 2015
We demonstrate that both Hepatitis C virus (HCV) and Bovine Viral Diarrhea virus (BVDV) contain regions in their 5' UTRs that stall and repress the enzymatic activity of the cellular 5'-3' exoribonuclease XRN1, resulting in dramatic changes in the ...
Stephanie L Moon   +8 more
doaj   +1 more source

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