Results 21 to 30 of about 43,119 (293)
Site-specific RNA methylation by a methyltransferase ribozyme
Nearly all classes of coding and non-coding RNA undergo post-transcriptional modification, including RNA methylation. Methylated nucleotides are among the evolutionarily most-conserved features of transfer (t)RNA and ribosomal (r)RNA 1 , 2 .
Carolin P M Scheitl+3 more
semanticscholar +1 more source
Inspecting the Ribozyme Region of Hepatitis Delta Virus Genotype 1: Conservation and Variability
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
Development of a minigenome cassette for Lettuce necrotic yellows virus: A first step in rescuing a plant cytorhabdovirus [PDF]
Rhabdoviruses are enveloped negative-sense RNA viruses that have numerous biotechnological applications. However, recovering plant rhabdoviruses from cDNA remains difficult due to technical difficulties such as the need for concurrent in planta ...
Drake, P+3 more
core +1 more source
Assembly of a Ribozyme Ligase from Short Oligomers by Nonenzymatic Ligation
Our current understanding of the chemistry of the primordial genetic material is fragmentary at best. The chemical replication of oligonucleotides long enough to perform catalytic functions is particularly problematic because of the low efficiency of ...
Lijun Zhou, D. O’Flaherty, J. Szostak
semanticscholar +1 more source
A ribozyme transcribed by a ribozyme [PDF]
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 +4 more sources
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
Fluorescence Polarization for Monitoring Ribozyme Reactions in Real Time
Fluorescence polarization has been used recently to monitor diverse macromolecular interactions. In this report, the application of fluorescence polarization has been extended to monitor ribozyme reactions in real time.
K.K. Singh+4 more
doaj +1 more source
A RNase P Ribozyme Inhibits Gene Expression and Replication of Hepatitis B Virus in Cultured Cells
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
Twenty years have passed since the first reports that certain RNAs mediate self-splicing and precursor tRNA processing reactions in the absence of proteins. An entire field emerged to learn how RNAs that lack the chemical versatility of amino acids nonetheless assemble into enzymes that accelerate chemical reactions with efficiencies that rival those ...
Martha J. Fedor, Eric Westhof
openaire +2 more sources
Membraneless compartments, such as complex coacervates, have been hypothesized as plausible prebiotic micro-compartments due to their ability to sequester RNA; however, their compatibility with essential RNA World chemistries is unclear.
Raghav R. Poudyal+5 more
semanticscholar +1 more source