Results 21 to 30 of about 498,663 (149)

Small RNA modifications: regulatory molecules and potential applications

open access: yesJournal of Hematology & Oncology, 2023
Small RNAs (also referred to as small noncoding RNAs, sncRNA) are defined as polymeric ribonucleic acid molecules that are less than 200 nucleotides in length and serve a variety of essential functions within cells.
Qunli Xiong, Yaguang Zhang
doaj   +1 more source

Dynamic regulation of ARGONAUTE4 within multiple nuclear bodies in Arabidopsis thaliana. [PDF]

open access: yesPLoS Genetics, 2008
DNA methylation directed by 24-nucleotide small RNAs involves the small RNA-binding protein ARGONAUTE4 (AGO4), and it was previously shown that AGO4 localizes to nucleolus-adjacent Cajal bodies, sites of snRNP complex maturation. Here we demonstrate that
Carey F Li   +5 more
doaj   +1 more source

The nuclear Argonaute HRDE-1 directs target gene re-localization and shuttles to nuage to promote small RNA-mediated inherited silencing

open access: yesCell Reports, 2023
Summary: Argonaute/small RNA pathways and heterochromatin work together to propagate transgenerational gene silencing, but the mechanisms behind their interaction are not well understood.
Yue-He Ding   +4 more
doaj  

Spliceosomal snRNA Epitranscriptomics

open access: yesFrontiers in Genetics, 2021
Small nuclear RNAs (snRNAs) are critical components of the spliceosome that catalyze the splicing of pre-mRNA. snRNAs are each complexed with many proteins to form RNA-protein complexes, termed as small nuclear ribonucleoproteins (snRNPs), in the cell ...
Pedro Morais, Hironori Adachi, Yi-Tao Yu
doaj   +1 more source

Cloning and molecular characterization of Trypanosoma cruzi U2, U4, U5, and U6 small nuclear RNAs

open access: yesMemorias do Instituto Oswaldo Cruz, 2007
Small nuclear RNAs (snRNAs) are important factors in the functioning of eukaryotic cells that form several small complexes with proteins; these ribonucleoprotein particles (U snRNPs) have an essential role in the pre-mRNA processing, particularly in ...
DL Ambrósio, MTA Silva, RMB Cicarelli
doaj   +1 more source

New small nuclear RNA gene-like transcriptional units as sources of regulatory transcripts. [PDF]

open access: yesPLoS Genetics, 2007
By means of a computer search for upstream promoter elements (distal sequence element and proximal sequence element) typical of small nuclear RNA genes, we have identified in the human genome a number of previously unrecognized, putative transcription ...
Aldo Pagano   +5 more
doaj   +1 more source

Species Diversity, Molecular Phylogeny, and Ecological Habits of Fomitopsis (Polyporales, Basidiomycota)

open access: yesFrontiers in Microbiology, 2022
Fomitopsis is a worldwide brown-rot fungal genus of Polyporales, which grows on different gymnosperm and angiosperm trees and has important ecological functions and economic values.
Shun Liu   +5 more
doaj   +1 more source

Taxonomy and Phylogeny of Polyporus Group Melanopus (Polyporales, Basidiomycota) from China. [PDF]

open access: yesPLoS ONE, 2016
Melanopus is a morphological group of Polyporus which contains species with a black cuticle on the stipe. In this article, taxonomic and phylogenetic studies on Melanopus group were carried out on the basis of morphological characters and phylogenetic ...
Jun-Liang Zhou   +3 more
doaj   +1 more source

Ancient Origin of the U2 Small Nuclear RNA Gene-Targeting Non-LTR Retrotransposons Utopia. [PDF]

open access: yesPLoS ONE, 2015
Most non-long terminal repeat (non-LTR) retrotransposons encoding a restriction-like endonuclease show target-specific integration into repetitive sequences such as ribosomal RNA genes and microsatellites.
Kenji K Kojima, Jerzy Jurka
doaj   +1 more source

Mutually Exclusive CBC-Containing Complexes Contribute to RNA Fate

open access: yesCell Reports, 2017
The nuclear cap-binding complex (CBC) stimulates processing reactions of capped RNAs, including their splicing, 3′-end formation, degradation, and transport.
Simone Giacometti   +12 more
doaj   +1 more source

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