Results 11 to 20 of about 16,956 (222)

A cell-based ribozyme reporter system employing a chromosomally-integrated 5′ exonuclease gene

open access: yesBMC Molecular and Cell Biology, 2021
Background Bioinformatic genome surveys indicate that self-cleaving ribonucleic acids (ribozymes) appear to be widespread among all domains of life, although the functions of only a small number have been validated by biochemical methods.
Aiyada Aroonsri   +4 more
doaj   +1 more source

Targeted suicide gene therapy for liver cancer based on ribozyme-mediated RNA replacement through post-transcriptional regulation

open access: yesMolecular Therapy: Nucleic Acids, 2021
Hepatocellular carcinoma (HCC) has high fatality rate and limited therapeutic options. Here, we propose a new anti-HCC approach with high cancer-selectivity and efficient anticancer effects, based on adenovirus-mediated Tetrahymena group I trans-splicing
Seung Ryul Han   +12 more
doaj   +1 more source

A ribozyme transcribed by a ribozyme [PDF]

open access: yesArtificial DNA: PNA & XNA, 2011
Prominent current ideas on how life emerged on Earth include an RNA world hypothesis in which RNA performed informational as well as catalytic functions in the absence of both DNA and protein. Demonstration of a self-replicative system based on ribonucleic acid polymers as both information carriers and catalysts would lend support to such a scenario. A
openaire   +3 more sources

Dynamic signal processing by ribozyme-mediated RNA circuits to control gene expression [PDF]

open access: yes, 2014
Organisms have different circuitries that allow converting signal molecule levels to changes in gene expression. An important challenge in synthetic biology involves the de novo design of RNA modules enabling dynamic signal processing in live cells. This
Satya Prakash   +21 more
core   +1 more source

Engineered RNase P Ribozymes Effectively Inhibit Human Cytomegalovirus Gene Expression and Replication

open access: yesViruses, 2014
RNase P ribozyme can be engineered to be a sequence-specific gene-targeting agent with promising application in both basic research and clinical settings.
Zhu Yang   +7 more
doaj   +1 more source

Inspecting the Ribozyme Region of Hepatitis Delta Virus Genotype 1: Conservation and Variability

open access: yesViruses, 2022
The hepatitis delta virus (HDV) genome has an autocatalytic region called the ribozyme, which is essential for viral replication. The aim of this study was to use next-generation sequencing (NGS) to analyze the ribozyme quasispecies (QS) in order to ...
Beatriz Pacin-Ruiz   +17 more
doaj   +1 more source

Ribozymes [PDF]

open access: yesCurrent Opinion in Structural Biology, 2007
The structural molecular biology of ribozymes took another great leap forward during the past two years. Before ribozymes were discovered in the early 1980s, all enzymes were thought to be proteins. No detailed structural information on ribozymes became available until 1994.
openaire   +3 more sources

Induction of ribozyme activity by anti-ribozyme oligonucleotides [PDF]

open access: yesNucleic Acids Symposium Series, 1999
A new type of hammerhead ribozyme, with cleavage activity enhanced by oligonucleotides, was constructed. Stem II of the ribozyme was substituted with a non complementary loop (loop II). The modified ribozyme exhibited negligible cleavage of a target RNA; however, it was converted to an active molecule in the presence of oligonucleotides which were ...
Y, Komatsu   +3 more
openaire   +2 more sources

Ribo-On and Ribo-Off tools using a self-cleaving ribozyme allow manipulation of endogenous gene expression in C. elegans

open access: yesCommunications Biology, 2023
Investigating gene function relies on the efficient manipulation of endogenous gene expression. Currently, a limited number of tools are available to robustly manipulate endogenous gene expression between “on” and “off” states. In this study, we insert a
Jie Fang   +5 more
doaj   +1 more source

Development of a Functionally Minimized Mutant of the R3C Ligase Ribozyme Offers Insight into the Plausibility of the RNA World Hypothesis

open access: yesBiology, 2014
The R3C ligase ribozyme is an artificial ligase ribozyme produced by modification of the ribozyme that lacks cytidine. Here, we attempted to modify the original R3C ribozyme (73 nucleotides) by reducing the number of nucleotides while maintaining the ...
Eri Kurihara   +3 more
doaj   +1 more source

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