Results 21 to 30 of about 18,960 (170)

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

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

RNA Organelles in DNA‐Based Artificial Cells Provide Spatial Aptamer Functions and Enhanced Signal Processing

open access: yesAngewandte Chemie, EarlyView.
Multiphase DNA–RNA artificial cells integrate a protective DNA shell, a transcriptionally active DNA core, and a functional RNA organelle. Spatial compartmentalization enables signal generation, external protein expression, and selective recapture via RNA aptamers. ABSTRACT Naturally occurring biomolecular condensates orchestrate key cellular processes
Maria Vonk‐de Roy   +4 more
wiley   +2 more sources

Adaptation of a Fluorogenic RNA to N1‐Methylpseudouridine Nucleoside Chemistry

open access: yesAngewandte Chemie, EarlyView.
Several green‐emitting fluorogenic RNA aptamers were evaluated following the replacement of every uridine by N1‐methylpseudouridine (mΨ). Because this modification impaired the function of most aptamers, a directed evolution strategy combining droplet microfluidics, bioinformatics, and rational design was used to identify an aptamer preserving its ...
Patrick P.A. Bertrand   +4 more
wiley   +2 more sources

Inhibition of human cytomegalovirus immediate early gene expression and growth by a novel RNase P ribozyme variant. [PDF]

open access: yesPLoS ONE, 2017
We have previously engineered new RNase P-based ribozyme variants with improved in vitro catalytic activity. In this study, we employed a novel engineered variant to target a shared mRNA region of human cytomegalovirus (HCMV) immediate early proteins 1 ...
Xu Sun   +13 more
doaj   +1 more source

RNase P Ribozymes Inhibit the Replication of Human Cytomegalovirus by Targeting Essential Viral Capsid Proteins

open access: yesViruses, 2015
An engineered RNase P-based ribozyme variant, which was generated using the in vitro selection procedure, was used to target the overlapping mRNA region of two proteins essential for human cytomegalovirus (HCMV) replication: capsid assembly protein (AP ...
Zhu Yang   +9 more
doaj   +1 more source

A RNase P Ribozyme Inhibits Gene Expression and Replication of Hepatitis B Virus in Cultured Cells

open access: yesMicroorganisms, 2023
Hepatitis B virus (HBV), an international public health concern, is a leading viral cause of liver disease, such as hepatocellular carcinoma. Sequence-specific ribozymes derived from ribonuclease P (RNase P) catalytic RNA are being explored for gene ...
Bin Yan   +3 more
doaj   +1 more source

Hairpin Ribozyme Genes Curtail Alcohol Drinking: from Rational Design to in vivo Effects in the Rat

open access: yesMolecular Therapy: Nucleic Acids, 2016
Ribozyme genes were designed to reduce voluntary alcohol drinking in a rat model of alcohol dependence. Acetaldehyde generated from alcohol in the liver is metabolized by the mitochondrial aldehyde dehydrogenase (ALDH2) such that diminishing ALDH2 ...
Amalia Sapag   +5 more
doaj   +1 more source

The Kiss Switch Brings Inactive R3C Ligase Ribozyme Back to Life

open access: yesBiology, 2018
R3C ligase ribozyme catalyzes the nucleophilic attack by a 3′-hydroxyl on a 5′-α-phosphorus of triphosphates to form a 3′-5′-phosphodiester bond. In the present study, although the truncation of R3C ribozyme was accompanied by a large reduction in ...
Kana Tanizawa   +4 more
doaj   +1 more source

Inhibition of telomerase activity by HDV ribozyme in cancers

open access: yesJournal of Experimental & Clinical Cancer Research, 2011
Background Telomerase plays an important role in cell proliferation and carcinogenesis and is believed to be a good target for anti-cancer drugs. Elimination of template function of telomerase RNA may repress the telomerase activity.
Gao Yanjing   +4 more
doaj   +1 more source

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