Results 21 to 30 of about 186,623 (239)

Pol IV-Dependent siRNA Production is Reduced in Brassica rapa

open access: yesBiology, 2013
Plants produce a diverse array of small RNA molecules capable of gene regulation, including Pol IV-dependent short interfering (p4-si)RNAs that trigger transcriptional gene silencing.
Rebecca A. Mosher   +2 more
doaj   +1 more source

Dielectricity of a molecularly crowded solution accelerates NTP misincorporation during RNA-dependent RNA polymerization by T7 RNA polymerase

open access: yesScientific Reports, 2022
In biological systems, the synthesis of nucleic acids, such as DNA and RNA, is catalyzed by enzymes in various aqueous solutions. However, substrate specificity is derived from the chemical properties of the residues, which implies that perturbations of ...
Shuntaro Takahashi   +5 more
doaj   +1 more source

Inhibitors of HIV-1 Reverse Transcriptase—Associated Ribonuclease H Activity

open access: yesBiology, 2012
HIV-1 enzyme reverse transcriptase (RT) is a major target for antiviral drug development, with over half of current FDA-approved therapeutics against HIV infection targeting the DNA polymerase activity of this enzyme. HIV-1 RT is a multifunctional enzyme
Michael A. Parniak   +4 more
doaj   +1 more source

On the origin of DNA genomes: evolution of the division of labor between template and catalyst in model replicator systems. [PDF]

open access: yesPLoS Computational Biology, 2011
The division of labor between template and catalyst is a fundamental property of all living systems: DNA stores genetic information whereas proteins function as catalysts. The RNA world hypothesis, however, posits that, at the earlier stages of evolution,
Nobuto Takeuchi   +2 more
doaj   +1 more source

Morphology and Molecular Phylogeny of Pseudocercospora fatouae Associated with Hypophyllous Leaf Mold on Fatoua villosa in Korea [PDF]

open access: yes한국균학회지, 2023
Dark brown leaf molds growing in a vein-limited pattern have been continuously observed on the lower leaf surface of Fatoua villosa in Korea.
Kui-Jae Lee   +5 more
doaj   +1 more source

African swine fever virus I267L acts as an important virulence factor by inhibiting RNA polymerase III-RIG-I-mediated innate immunity.

open access: yesPLoS Pathogens, 2022
ASFV is a large DNA virus that is highly pathogenic in domestic pigs. How this virus is sensed by the innate immune system as well as why it is so virulent remains enigmatic.
Yong Ran   +10 more
doaj   +1 more source

RNA-directed DNA Methylation.

open access: yesPLoS Genetics, 2020
RNA-directed DNA methylation (RdDM) is a biological process in which non-coding RNA molecules direct the addition of DNA methylation to specific DNA sequences.
Robert M Erdmann, Colette L Picard
doaj   +1 more source

T4 DNA polymerase improves the efficiency of multiple site-directed mutagenesis

open access: yesBiotechnology & Biotechnological Equipment, 2016
Site-directed mutagenesis (SDM) is a useful tool to study the functions of regulatory sequences of DNA and RNA, and the structures and functions of proteins. Numerous methods have been developed for either single or multiple SDM (MSDM).
Wei Guo   +4 more
doaj   +1 more source

Identification of Potential Biomarkers for CAD Using Integrated Expression and Methylation Data

open access: yesFrontiers in Genetics, 2020
DNA methylation plays an essential role in the pathogenesis of coronary artery disease (CAD) through regulating mRNA expressions. This study aimed to identify hub genes regulated by DNA methylation as biomarkers of CAD.
Xiaokang Zhang   +6 more
doaj   +1 more source

A Pol V-mediated silencing, independent of RNA-directed DNA methylation, applies to 5S rDNA. [PDF]

open access: yesPLoS Genetics, 2009
The plant-specific RNA polymerases Pol IV and Pol V are essential to RNA-directed DNA methylation (RdDM), which also requires activities from RDR2 (RNA-Dependent RNA Polymerase 2), DCL3 (Dicer-Like 3), AGO4 (Argonaute), and DRM2 (Domains Rearranged ...
Julien Douet   +2 more
doaj   +1 more source

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