Results 11 to 20 of about 249,749 (166)
Crystal structure of an RNA-cleaving DNAzyme
Nature Communications, 2017 RNA-cleaving DNA enzymes are catalytic DNA that can cleave RNA in a sequence-specific manner. Here, the authors report three crystal structures of the 8–17 DNAzyme that include the pre-catalytic state of the RNA cleavage reaction, providing insight into ...
Hehua Liu +14 more
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Eukaryote-Specific Insertion Elements Control Human ARGONAUTE Slicer Activity
Cell Reports, 2013 We have solved the crystal structure of human ARGONAUTE1 (hAGO1) bound to endogenous 5′-phosphorylated guide RNAs. To identify changes that evolutionarily rendered hAGO1 inactive, we compared our structure with guide-RNA-containing and cleavage-active ...
Kotaro Nakanishi +8 more
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Many Activities, One Structure: Functional Plasticity of Ribozyme Folds
Molecules, 2016 Catalytic RNAs, or ribozymes, are involved in a number of essential biological processes, such as replication of RNA genomes and mobile genetic elements, RNA splicing, translation, and RNA degradation.
Matthew W.L. Lau +1 more
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Frontiers in Microbiology, 2019 The RNA-dependent RNA polymerases (RdRPs) encoded by the RNA viruses are a unique class of nucleic acid polymerases. Each viral RdRP contains a 500–600 residue catalytic module with palm, fingers, and thumb domains forming an encircled human right hand ...
Hengxia Jia, Hengxia Jia, Peng Gong
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The structure of an RNAi polymerase links RNA silencing and transcription.
PLoS Biology, 2006 RNA silencing refers to a group of RNA-induced gene-silencing mechanisms that developed early in the eukaryotic lineage, probably for defence against pathogens and regulation of gene expression.
Paula S Salgado +5 more
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Evolution of RNA-protein interactions: non-specific binding led to RNA splicing activity of fungal mitochondrial tyrosyl-tRNA synthetases. [PDF]
PLoS Biology, 2014 The Neurospora crassa mitochondrial tyrosyl-tRNA synthetase (mtTyrRS; CYT-18 protein) evolved a new function as a group I intron splicing factor by acquiring the ability to bind group I intron RNAs and stabilize their catalytically active RNA structure ...
Lilian T Lamech +2 more
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Prokaryotic Argonautes – variations on the RNA interference theme
Microbial Cell, 2014 The discovery of RNA interference (RNAi) has been a major scientific breakthrough. This RNA-guided RNA interference system plays a crucial role in a wide range of regulatory and defense mechanisms in eukaryotes.
John van der Oost +2 more
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Inhibition of Bacterial RNase P RNA by Phenothiazine Derivatives
Biomolecules, 2016 There is a need to identify novel scaffolds and targets to develop new antibiotics. Methylene blue is a phenothiazine derivative, and it has been shown to possess anti-malarial and anti-trypanosomal activities.
Shiying Wu +2 more
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Catalytic RNA and RNA Splicing [PDF]
American Zoologist, 1989 The capacity of Watson-Crick base-pair complementarity to direct informational transactions basic to gene expression has long been appreciated. Among RNA molecules, it mediates mRNA-tRNA codon-anticodon pairing and the 16S rRNA-mRNA Shine-Dalgarno interaction.
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RNA ligase ribozymes with a small catalytic core
Scientific Reports, 2023 Catalytic RNAs, or ribozymes, catalyze diverse chemical reactions that could have sustained primordial life in the hypothetical RNA world. Many natural ribozymes and laboratory evolved ribozymes exhibit efficient catalysis mediated by elaborate catalytic
Yoko Nomura, Yohei Yokobayashi
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