Results 21 to 30 of about 12,837 (178)
A RNase P Ribozyme Inhibits Gene Expression and Replication of Hepatitis B Virus in Cultured Cells
Microorganisms, 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
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A ribozyme transcribed by a ribozyme [PDF]
Artificial 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
Arginine cofactors on the polymerase ribozyme. [PDF]
PLoS ONE, 2011 The RNA world hypothesis states that the early evolution of life went through a stage in which RNA served both as genome and as catalyst. The central catalyst in an RNA world organism would have been a ribozyme that catalyzed RNA polymerization to ...
Chengguo Yao +4 more
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The Kiss Switch Brings Inactive R3C Ligase Ribozyme Back to Life
Biology, 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
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Inhibition of telomerase activity by HDV ribozyme in cancers
Journal 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
Structure-based insights into self-cleavage by a four-way junctional twister-sister ribozyme
Nature Communications, 2017 Twister-sister is a self-cleaving ribozyme. Here, the authors report the 2.0 Å crystal structure of the four-way junctional twister-sister ribozyme in the pre-catalytic state and discuss mechanistic implications based on their mutagenesis experiments and
Luqian Zheng +7 more
doaj +1 more source
Viruses, 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
Sequence‐Modulated Active Tripeptide Condensates for Tandem Catalysis
Angewandte Chemie, EarlyView.Sequence‐modulated tripeptide coacervates mimic biomolecular condensates with controllable, enzyme‐regulated phase separation. They co‐sequester hydrophobic active species and hydrophilic enzymes, enabling tandem catalysis in aqueous media. Incorporated into artificial cells, they function as adaptive sub‐organelles, orchestrating compartmentalized ...
Hao Han +7 more
wiley +2 more sources
Hairpin Ribozyme Genes Curtail Alcohol Drinking: from Rational Design to in vivo Effects in the Rat
Molecular 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
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A Faster Triphosphorylation Ribozyme. [PDF]
PLoS ONE, 2015 In support of the RNA world hypothesis, previous studies identified trimetaphosphate (Tmp) as a plausible energy source for RNA world organisms. In one of these studies, catalytic RNAs (ribozymes) that catalyze the triphosphorylation of RNA 5'-hydroxyl ...
Gregory F Dolan +2 more
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