Activation mechanism of a noncanonical RNA-dependent RNA polymerase [PDF]
Two lineages of viral RNA-dependent RNA polymerases (RDRPs) differing in the organization (canonical vs. noncanonical) of the palm subdomain have been identified. Phylogenetic analyses indicate that both lineages diverged at a very early stage of the evolution of the enzyme [Gorbalenya AE, Pringle FM, Zeddam JL, Luke BT, Cameron CE ...
Garriga, Damià+5 more
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Crystal structure of Zika virus NS5 RNA-dependent RNA polymerase
The Zika virus outbreak is a global health threat and there is an urgent need for drugs against the virus. Here the authors present the structure of the RNA-dependent RNA-polymerase domain from Zika non-structural protein 5, which is a template for the ...
Andre S. Godoy+6 more
doaj +1 more source
Theoretical model of transcription based on torsional mechanics of DNA template [PDF]
Transcription is the first step of gene expression, in which a particular segment of DNA is copied to RNA by the enzyme RNA polymerase (RNAP). Despite many details of the complex interactions between DNA and RNA synthesis disclosed experimentally, much of physical behavior of transcription remains largely unknown.
arxiv +1 more source
Inhibitors of the Hepatitis C Virus RNA-Dependent RNA Polymerase NS5B
More than 20 years after the identification of the hepatitis C virus (HCV) as a novel human pathogen, the only approved treatment remains a combination of pegylated interferon-α and ribavirin.
Megan H. Powdrill+2 more
doaj +1 more source
RNA-dependent RNA polymerase 1 in potato (Solanum tuberosum) and its relationship to other plant RNA-dependent RNA polymerases [PDF]
AbstractCellular RNA-dependent RNA polymerases (RDRs) catalyze synthesis of double-stranded RNAs that can serve to initiate or amplify RNA silencing. Arabidopsis thaliana has six RDR genes; RDRs 1, 2 and 6 have roles in anti-viral RNA silencing. RDR6 is constitutively expressed but RDR1 expression is elevated following plant treatment with defensive ...
John P. Carr+8 more
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Interacting RNA polymerase motors on DNA track: effects of traffic congestion and intrinsic noise on RNA synthesis [PDF]
RNA polymerase (RNAP) is an enzyme that synthesizes a messenger RNA (mRNA) strand which is complementary to a single-stranded DNA template. From the perspective of physicists, an RNAP is a molecular motor that utilizes chemical energy input to move along the track formed by a DNA. In many circumstances, which are described in this paper, a large number
arxiv +1 more source
SARS-CoV-2 RNA Dependent RNA polymerase (RdRp) – A drug repurposing study
The outbreak of SARS-CoV-2 in December 2019 in China subsequently lead to a pandemic. Lack of vaccine and specific anti-viral drugs started a global health disaster. For a sustained control and protection, development of potential anti-viral drugs is one
Jamshaid Ahmad+4 more
doaj
Inhibitors of an RNA‐dependent DNA polymerase [PDF]
Much interest of late has centered around RNAdirected DNA synthesis. Initially, with the finding of an RNA-dependent DNA polymerase in oncogenic RNA viruses [l-S] and what was described as the exclusive presence of the polymerase in acute leukemia cells as opposed to ‘normal’ cells [6] , speculation as to a molecular basis for leukemogenesis and a ...
H.Bruce Bosmann, David Kessel
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Uncovering the effect of RNA polymerase steric interactions on gene expression noise: analytical distributions of nascent and mature RNA numbers [PDF]
The telegraph model is the standard model of stochastic gene expression, which can be solved exactly to obtain the distribution of mature RNA numbers per cell. A modification of this model also leads to an analytical distribution of the nascent RNA numbers. These solutions are routinely used for the analysis of single-cell data, including the inference
arxiv
Association of the Influenza A Virus RNA-Dependent RNA Polymerase with Cellular RNA Polymerase II [PDF]
ABSTRACT Transcription by the influenza virus RNA-dependent RNA polymerase is dependent on cellular RNA processing activities that are known to be associated with cellular RNA polymerase II (Pol II) transcription, namely, capping and splicing.
Engelhardt, O, Smith, M, Fodor, E
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