Results 61 to 70 of about 14,418 (193)

Molecular insights and translational opportunities to enhance heat tolerance in rice

open access: yesThe Plant Genome, Volume 19, Issue 3, September 2026.
Abstract Heat stress is an increasingly serious threat to rice (Oryza sativa L.) productivity, yet the genetic and regulatory architecture underlying thermotolerance remain poorly resolved and fragmented across studies. Earlier research focused on individual pathways or specific developmental stages; however, recent advances now support an integrated ...
Prabhat Rana   +7 more
wiley   +1 more source

Structural analysis of mtEXO mitochondrial RNA degradosome reveals tight coupling of nuclease and helicase components

open access: yesNature Communications, 2018
The mitochondrial RNA degradosome (mtEXO) plays an essential role in the regulation of mitochondrial gene expression and is composed of the 3′-to-5′ exoribonuclease Dss1 and the helicase Suv3.
Michal Razew   +12 more
doaj   +1 more source

A New Subclass of Exoribonuclease-Resistant RNA Found in Multiple Genera of Flaviviridae

open access: yesmBio, 2020
Viruses have developed innovative strategies to exploit the cellular machinery and overcome the antiviral defenses of the host, often using specifically structured RNA elements.
Matthew J. Szucs   +4 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

Structural and functional studies of the decapping exoribonucleases [PDF]

open access: yesActa Crystallographica Section A Foundations and Advances, 2014
Recent studies showed that two homologous yeast proteins, Rai1 and Dxo1, function in a quality control mechanism to clear cells of incompletely 5' end-capped messenger RNAs (mRNAs). Rai1 possesses a novel decapping activity that can remove the entire cap structure dinucleotide from an mRNA.
Jeong Ho Chang, Liang Tong
openaire   +1 more source

The presence of a 2’-O-methylation blocks the exoribonuclease activity of DXO.

open access: yes, 2018
(A) The exoribonuclease activity of DXO toward different substrates was studied. 2μM of DXO were incubated with 100nM of the 30‐nt 3′‐radiolabelled RNA substrate harbouring either no 2’-O-methylation, a 2’-O-methylation on the first nucleotide or a 2’-O ...
Andréa Allaire (3515021)   +11 more
core   +1 more source

Promotion of Bamboo mosaic virus accumulation in Nicotiana benthamiana by 5’→3’ exonuclease NbXRN4

open access: yesFrontiers in Microbiology, 2016
Bamboo mosaic virus (BaMV) has a 6.4-kb (+) sense RNA genome with a 5’ cap and a 3’ poly(A) tail. ORF1 of this potexvirus encodes a 155-kDa replication protein responsible for the viral RNA replication/transcription and 5’ cap formation.
Cheng-Cheng eLee   +6 more
doaj   +1 more source

Molecular Interplay of PARN and Telomerase: Tail Modifiers and Disease Implications

open access: yesWIREs RNA, Volume 17, Issue 4, July/August 2026.
Schematic representation of the molecular interplay between PARN, telomerase‐associated, and the involvement of p53 in regulating telomere maintenance and genome stability. The top panel shows how normal PARN levels are involved in regulating p53 levels and balanced telomerase activity through their regulatory interaction with TERC and TERRA, thus ...
Sujitha Felicitus   +5 more
wiley   +1 more source

In vivo 3′-to-5′ exoribonuclease targetomes of Streptococcus pyogenes [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance To cope with harsh environments and cause infection, bacteria need to constantly adjust gene expression. Ribonucleases (RNases) control the abundance of regulatory and protein-coding RNA through degradation and maturation.
Anne-Laure Lécrivain   +5 more
openaire   +5 more sources

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

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