Results 11 to 20 of about 388,782 (280)

RNA ligase ribozymes with a small catalytic core

open access: yesScientific 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
doaj   +3 more sources

An Efficient Catalytic DNA that Cleaves L-RNA. [PDF]

open access: yesPLoS ONE, 2015
Many DNAzymes have been isolated from synthetic DNA pools to cleave natural RNA (D-RNA) substrates and some have been utilized for the design of aptazyme biosensors for bioanalytical applications.
Kha Tram   +3 more
doaj   +5 more sources

The catalytic mechanism of the RNA methyltransferase METTL3

open access: yeseLife, 2023
The complex of methyltransferase-like proteins 3 and 14 (METTL3-14) is the major enzyme that deposits N6-methyladenosine (m6A) modifications on messenger RNA (mRNA) in humans.
Ivan Corbeski   +11 more
doaj   +4 more sources

RNA catalytic activity as a probe of chaperone-mediated RNA folding. [PDF]

open access: yesMethods Mol Biol, 2014
For structured RNAs that possess catalytic activity, this activity provides a powerful probe for measuring the progress of folding and the effects of RNA chaperone proteins on the folding rate. The crux of this approach is that only the natively folded RNA is able to perform the catalytic reaction.
Gracia B, Russell R.
europepmc   +5 more sources

Catalytic RNA and RNA Splicing [PDF]

open access: yesAmerican 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.
openaire   +2 more sources

Evolution of RNA-protein interactions: non-specific binding led to RNA splicing activity of fungal mitochondrial tyrosyl-tRNA synthetases. [PDF]

open access: yesPLoS 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
doaj   +1 more source

Expression of the C-terminal family 22 carbohydratebinding module of xylanase 10B of Clostridium themocellum in tobacco plant [PDF]

open access: yes, 2009
Carbohydrate-binding modules have been shown to alter plant cell wall structural architecture. Hence, they have the potential application of being used to engineer the plant to produce tailor-made natural fibers in the cell wall.
Obembe, Olawole O.
core   +2 more sources

Many Activities, One Structure: Functional Plasticity of Ribozyme Folds

open access: yesMolecules, 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
doaj   +1 more source

Structural and biochemical basis for DNA and RNA catalysis by human Topoisomerase 3β

open access: yesNature Communications, 2022
The authors revealed novel roles of catalytic residues and divalent metal ions for hsTOP3B, the human RNA topoisomerase, and demonstrated the structural elements that kinetically modulate the DNA and RNA topoisomerase activities of TOP3B.
Xi Yang   +4 more
doaj   +1 more source

Prokaryotic Argonautes – variations on the RNA interference theme

open access: yesMicrobial 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
doaj   +1 more source

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