Results 71 to 80 of about 1,248,361 (297)
3 '-processing of yeast tRNA(Trp) precedes 5 '-processing [PDF]
, 2003 Previous analyses of eukaryotic pre-tRNAs processing have reported that 5'-cleavage by RNase P precedes 3'-maturation. Here we report that in contrast to all other yeast tRNAs analyzed to date, tRNA(Trp) undergoes 3'-maturation prior to 5'-cleavage ...
Tollervey, D, Kufel, J
core +1 more source
Short RNA guides cleavage by eukaryotic RNase III.
PLoS ONE, 2007 In eukaryotes, short RNAs guide a variety of enzymatic activities that range from RNA editing to translation repression. It is hypothesized that pre-existing proteins evolved to bind and use guide RNA during evolution.
Bruno Lamontagne, Sherif Abou Elela
doaj +1 more source
RNA and DNA Targeting by a Reconstituted Thermus thermophilus Type III-A CRISPR-Cas System. [PDF]
PLoS ONE, 2017 CRISPR-Cas (clustered regularly interspaced short palindromic repeats-CRISPR-associated) systems are RNA-guided adaptive immunity pathways used by bacteria and archaea to defend against phages and plasmids.
Tina Y Liu +2 more
doaj +1 more source
‘Guide and Prejudice’— How Argonautes recognize targets across domains of life
FEBS Letters, EarlyView.Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley +1 more source
RACE-Seq identifies the Argonaute-2 cleavage products of RNA interference-based oligonucleotides [PDF]
, 2018 The recent announcement of the first successful Phase III clinical trial of a RNA interference (RNAi)-based therapeutic is a major achievement in the field.
Usher, L.
core +1 more source
Enhancement of RNA self‐cleavage by micellar catalysis [PDF]
FEBS Letters, 1999 It has been reported recently that naturally occurring catalytic RNAs like hammerhead and hairpin ribozyme do not require metal ions for efficient catalysis. It seems that the folded tertiary structure of the RNA contributes more to the catalytic function than was initially recognized.
Riepe, Andrea +2 more
openaire +2 more sources
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
Biogenesis pathways of RNA guides in archaeal and bacterial CRISPR-Cas adaptive immunity [PDF]
, 2015 EC is supported by the Alexander von Humboldt Foundation, the German Federal Ministry for Education and Research, the Helmholtz Association, the Göran Gustafsson Foundation, the Swedish Research Council, the Kempe Foundation and Umeå University.
White, Malcolm F. +4 more
core +1 more source
Nuclease escape elements protect messenger RNA against cleavage by multiple viral endonucleases. [PDF]
PLoS Pathogens, 2017 During lytic Kaposi's sarcoma-associated herpesvirus (KSHV) infection, the viral endonu- clease SOX promotes widespread degradation of cytoplasmic messenger RNA (mRNA). However, select mRNAs, including the transcript encoding interleukin-6 (IL-6), escape
Mandy Muller, Britt A Glaunsinger
doaj +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source