Results 21 to 30 of about 25,854 (244)

MicroRNA-mediated gene silencing: are we close to a unifying model?

open access: yesBiomolecular Concepts, 2012
MicroRNAs (miRNAs) comprise a group of small non-coding RNA –21 nucleotides in length. They act as post-transcriptional regulators of gene expression by forming base pairing interactions with target messenger RNA (mRNA).
James Victoria   +2 more
doaj   +1 more source

AGO unchained: Canonical and non-canonical roles of Argonaute proteins in mammals

open access: yesFrontiers in Bioscience-Landmark, 2020
Argonaute (AGO) proteins play key roles in animal physiology by binding to small RNAs and regulating the expression of their targets. In mammals, they do so through two distinct pathways: the miRNA pathway represses genes through a multiprotein complex ...
Laura Sala   +2 more
doaj   +1 more source

Inducible and reversible inhibition of miRNA-mediated gene repression in vivo

open access: yeseLife, 2021
Although virtually all gene networks are predicted to be controlled by miRNAs, the contribution of this important layer of gene regulation to tissue homeostasis in adult animals remains unclear.
Gaspare La Rocca   +19 more
doaj   +1 more source

Expansion and Divergence of Argonaute Genes in the Oomycete Genus Phytophthora

open access: yesFrontiers in Microbiology, 2018
Modulation of gene expression through RNA interference is well conserved in eukaryotes and is involved in many cellular processes. In the oomycete Phytophthora, research on the small RNA machinery and function has started to reveal potential roles in the
Stephanie R. Bollmann   +3 more
doaj   +1 more source

A Prokaryotic Twist on Argonaute Function

open access: yesLife, 2015
Argonaute proteins can be found in all three domains of life. In eukaryotic organisms, Argonaute is, as the functional core of the RNA-silencing machinery, critically involved in the regulation of gene expression.
Sarah Willkomm   +3 more
doaj   +1 more source

Are Argonaute-Associated Tiny RNAs Junk, Inferior miRNAs, or a New Type of Functional RNAs?

open access: yesFrontiers in Molecular Biosciences, 2021
The biosynthesis pathways of microRNAs (miRNAs) have been well characterized with the identification of the required components. miRNAs are synthesized from the transcripts of miRNA genes and other RNAs, such as introns, transfer RNAs, ribosomal RNAs ...
Kotaro Nakanishi, Kotaro Nakanishi
doaj   +1 more source

From transcription to translation: new insights in the structure and function of Argonaute protein

open access: yesBiomolecular Concepts, 2012
Argonaute proteins play a central role in gene silencing pathways mediated by small RNA molecules. The ancestral function of small RNA-dependent silencing is related to genome protection against parasitic nucleic acids, such as transposons and viruses ...
Giorgi Corinna   +2 more
doaj   +1 more source

Age and 17β-Estradiol (E2) Facilitate Nuclear Export and Argonaute Loading of microRNAs in the Female Brain

open access: yesNon-Coding RNA, 2023
Aging in women is accompanied by a dramatic change in circulating sex steroid hormones. Specifically, the primary circulating estrogen, 17β-estradiol (E2), is nearly undetectable in post-menopausal women.
Megan L. Linscott   +4 more
doaj   +1 more source

Function Control of Anti-microRNA Oligonucleotides Using Interstrand Cross-Linked Duplexes

open access: yesMolecular Therapy: Nucleic Acids, 2018
MicroRNA (miRNA)-guided argonaute (Ago) controls gene expression upon binding to the 3′ UTR of mRNA. The miRNA function can be competitively inhibited by single-stranded anti-miRNA oligonucleotides (AMOs).
Yasuhiro Mie   +6 more
doaj   +1 more source

The Varied Roles of Nuclear Argonaute-Small RNA Complexes and Avenues for Therapy

open access: yesMolecular Therapy: Nucleic Acids, 2014
Argonautes are highly conserved proteins found in almost all eukaryotes and some bacteria and archaea. In humans, there are eight argonaute proteins evenly distributed across two clades, the Ago clade (AGO1-4) and the Piwi clade (PIWIL1-4).
Jason P Ross, Zena Kassir
doaj   +1 more source

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