Results 31 to 40 of about 331,295 (252)

Regulation of coronavirus nsp15 cleavage specificity by RNA structure

open access: yesPLoS ONE, 2023
SARS-CoV-2, the etiologic agent of the COVID-19 pandemic, has had an enduring impact on global public health. However, SARS-CoV-2 is only one of multiple pathogenic human coronaviruses (CoVs) to have emerged since the turn of the century. CoVs encode for
Indraneel Salukhe   +4 more
doaj   +2 more sources

Characterization of MazF-Mediated Sequence-Specific RNA Cleavage in Pseudomonas putida Using Massive Parallel Sequencing. [PDF]

open access: yesPLoS ONE, 2016
Under environmental stress, microbes are known to alter their translation patterns using sequence-specific endoribonucleases that we call RNA interferases. However, there has been limited insight regarding which RNAs are specifically cleaved by these RNA
Tatsuki Miyamoto   +4 more
doaj   +1 more source

stepRNA: Identification of Dicer cleavage signatures and passenger strand lengths in small RNA sequences

open access: yesFrontiers in Bioinformatics, 2022
The enzyme Dicer is a component of many small RNA (sRNA) pathways involved in RNA processing for post-transcriptional regulation, anti-viral response and control of transposable elements.
Ben Murcott   +5 more
doaj   +1 more source

RNase P RNA‐mediated cleavage [PDF]

open access: yesIUBMB Life, 2009
AbstractMetal(II)‐induced hydrolysis of RNA produce products with 5′‐hydroxyls and 2′;3′‐cyclic phosphates at the ends. Ribozymes are RNA molecules that act as catalysts. Some ribozymes that cleave RNA also generate 5′‐hydroxyls and 2′;3′‐cyclic phosphates whereas others produces 5′‐phosphates and 3′‐hydroxyls at the ends of the cleavage products ...
Leif A, Kirsebom, Stefan, Trobro
openaire   +3 more sources

Regulating gene expression in animals through RNA endonucleolytic cleavage

open access: yesHeliyon, 2018
The expression of any gene must be precisely controlled for appropriate function. This expression can be controlled at various levels. This includes epigenetic regulation through DNA methylation or histone modifications. At the posttranscriptional level,
Karen Gu, Lawrence Mok, Mark M.W. Chong
doaj   +1 more source

A programmable pAgo nuclease with RNA target-cleavage specificity from the mesophilic bacterium Verrucomicrobia

open access: yesActa Biochimica et Biophysica Sinica, 2023
Argonaute (Ago) proteins are conserved programmable nucleases present in eukaryotes and prokaryotes and provide defense against mobile genetic elements. Almost all characterized pAgos prefer to cleave DNA targets.
Liu Qi   +7 more
doaj   +1 more source

Intracellular RNA cleavage by the hairpin ribozyme [PDF]

open access: yesNucleic Acids Research, 1998
Studies involving ribozyme-directed inactivation of targeted RNA molecules have met with mixed success, making clear the importance of methods to measure and optimize ribozyme activity within cells. The interpretation of biochemical assays for determining ribozyme activity in the cellular environment have been complicated by recent results indicating ...
A A, Seyhan, J, Amaral, J M, Burke
openaire   +2 more sources

Further Probing of Cu2+-Dependent PNAzymes Acting as Artificial RNA Restriction Enzymes

open access: yesMolecules, 2019
Peptide nucleic acid (PNA)-neocuproine conjugates have been shown to efficiently catalyse the cleavage of RNA target sequences in the presence of Cu2+ ions in a site-specific manner. These artificial enzymes are designed to force the formation of a bulge
Olivia Luige   +3 more
doaj   +1 more source

Transcriptome wide annotation of eukaryotic RNase III reactivity and degradation signals. [PDF]

open access: yesPLoS Genetics, 2015
Detection and validation of the RNA degradation signals controlling transcriptome stability are essential steps for understanding how cells regulate gene expression. Here we present complete genomic and biochemical annotations of the signals required for
Jules Gagnon   +4 more
doaj   +1 more source

Binding and cleavage of CRISPR RNA by Cas6 [PDF]

open access: yesRNA, 2010
The CRISPR–Cas system provides many prokaryotes with acquired resistance to viruses and other mobile genetic elements. The core components of this defense system are small, host-encoded prokaryotic silencing (psi)RNAs and Cas (CRISPR-associated) proteins.
Jason, Carte   +4 more
openaire   +2 more sources

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