Results 61 to 70 of about 4,940 (209)

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

Rex1p Deficiency Leads to Accumulation of Precursor Initiator tRNA\u3csup\u3eMet\u3c/sup\u3e and Polyadenylation of Substrate RNAs in \u3cem\u3eSaccharomyces cerevisiae\u3c/em\u3e [PDF]

open access: yes, 2009
A synthetic genetic array was used to identify lethal and slow-growth phenotypes produced when a mutation in TRM6, which encodes a tRNA modification enzyme subunit, was combined with the deletion of any non-essential gene in Saccharomyces cerevisiae.
Anderson, James T.   +5 more
core   +1 more source

Xrn1/Pacman affects apoptosis and regulates expression of hid and reaper [PDF]

open access: yes, 2015
Programmed cell death, or apoptosis, is a highly conserved cellular process that is crucial for tissue homeostasis under normal development as well as environmental stress.
Crossman, Samuel H   +8 more
core   +2 more sources

Non‐Targeting shRNA‐Encoded Plasmid DNA Enhances Protective Immunity Through RIDD‐RIG‐I Signaling Pathway in the Zika Virus Animal Model

open access: yesAdvanced Science, Volume 13, Issue 19, 2 April 2026.
We present a novel DNA vaccine platform featuring intrinsic, non‐targeting dsRNA that significantly enhances immune responses by activating the regulated IRE1‐dependent decay‐RIG‐I signaling pathway. This research elucidates a previously uncharacterized mechanism for dsRNA‐mediated innate immune activation.
Min‐Syuan Huang   +10 more
wiley   +1 more source

Exoribonuclease superfamilies: structural analysis and phylogenetic distribution

open access: yesNucleic Acids Research, 2001
Exoribonucleases play an important role in all aspects of RNA metabolism. Biochemical and genetic analyses in recent years have identified many new RNases and it is now clear that a single cell can contain multiple enzymes of this class. Here, we analyze the structure and phylogenetic distribution of the known exoribonucleases.
Y, Zuo, M P, Deutscher
openaire   +3 more sources

Suppression of Viral RNA Recombination by a Host Exoribonuclease [PDF]

open access: yesJournal of Virology, 2006
ABSTRACT RNA viruses of humans, animals, and plants evolve rapidly due to mutations and RNA recombination. A previous genome-wide screen in Saccharomyces cerevisiae , a model host, identified five host genes, including XRN1 , encoding a 5′-3′ exoribonuclease, whose absence led to an
Chi-Ping, Cheng   +2 more
openaire   +2 more sources

Attachment of the RNA degradosome to the bacterial inner cytoplasmic membrane prevents wasteful degradation of rRNA in ribosome assembly intermediates.

open access: yesPLoS Biology, 2023
RNA processing and degradation shape the transcriptome by generating stable molecules that are necessary for translation (rRNA and tRNA) and by facilitating the turnover of mRNA, which is necessary for the posttranscriptional control of gene expression ...
Lydia Hadjeras   +10 more
doaj   +1 more source

Regulation of cytoplasmic RNA stability: lessons from drosophila [PDF]

open access: yes, 2018
The process of RNA degradation is a critical level of regulation contributing to the control of gene expression. In the last two decades a number of studies have shown the specific and targeted nature of RNA decay and its importance in maintaining ...
Abdelmohsen   +164 more
core   +1 more source

Proteomic Profiling of Human Extracellular Vesicles Reveals Diagnostic Biomarkers for Colon Adenocarcinoma

open access: yesJournal of Extracellular Vesicles, Volume 15, Issue 4, April 2026.
Proteomic profiling of tissue explant‐ and plasma‐derived extracellular vesicles identified colon adenocarcinoma‐associated and healthy‐associated EV proteins. A 10‐protein EV panel enabled highly sensitive blood‐based detection of colon adenocarcinoma, showed marked postoperative changes, and retained performance in an independent validation cohort ...
Yura Seo   +33 more
wiley   +1 more source

Accessing the genomic information of unculturable oceanic picoeukaryotes by combining multiple single cells [PDF]

open access: yes, 2017
Mangot, Jean-François et al.-- 12 pages, 7 figures, 2 tables, supplementary information https://dx.doi.org/10.1038/srep41498Pico-sized eukaryotes play key roles in the functioning of marine ecosystems, but we still have a limited knowledge on their ...
Latorre, Fran   +4 more
core   +1 more source

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