Unwinding-like activity associated with avian retrovirus RNA-directed DNA polymerase [PDF]
The avian retrovirus RNA-directed DNA polymerase contains an activity that is capable of removing hydrogen bonds from duplex nucleic acid molecules. This "unwinding-like" activity appears to be specific in its action, affecting RNA.DNA and DNA.DNA duplex molecules but not RNA.RNA duplexes.
M S, Collett +3 more
openaire +2 more sources
Arabidopsis C-terminal domain phosphatase-like 1 functions in miRNA accumulation and DNA methylation. [PDF]
Arabidopsis CTD-PHOSPHATASE-LIKE 1 (CPL1) is a protein phosphatase that can dephosphorylate RNA polymerase II C-terminal domain (CTD). Unlike typical CTD-phosphatases, CPL1 contains a double-stranded (ds) RNA-binding motif (dsRBM) and has been implicated
In Sil Jeong +7 more
doaj +1 more source
Stimulated Normal Human Lymphocytes Contain a Ribonuclease-Sensitive DNA Polymerase Distinct from Viral RNA-Directed DNA Polymerase [PDF]
Ribonuclease-sensitive DNA synthesis is demonstrated in a cytoplasmic particulate fraction of normal human blood lymphocytes stimulated with phytohemagglutinin, but not in unstimulated lymphocytes. DNA polymerase purified from this fraction does not transcribe the heteropolymeric regions of 70S RNA from RNA tumor viruses, thus distinguishing this ...
S N, Bobrow +3 more
openaire +2 more sources
Role of RNA Interference (RNAi) in the Moss Physcomitrella patens [PDF]
RNA interference (RNAi) is a mechanism that regulates genes by either transcriptional (TGS) or posttranscriptional gene silencing (PTGS), required for genome maintenance and proper development of an organism.
Arif, Muhammad Asif +2 more
core +3 more sources
Heterochromatic siRNAs and DDM1 independently silence aberrant 5S rDNA transcripts in Arabidopsis. [PDF]
5S ribosomal RNA gene repeats are arranged in heterochromatic arrays (5S rDNA) situated near the centromeres of Arabidopsis chromosomes. The chromatin remodeling factor DDM1 is known to maintain 5S rDNA methylation patterns while silencing transcription ...
Todd Blevins +3 more
doaj +1 more source
Genomic analysis of Poxviridae and exploring qualified gene sequences for phylogenetics
The members of the Poxviridae family are globally distributed all over the world and can cause infectious diseases. Although genome sequences are publicly available for representative isolates of all genera, studies on the criteria for genome-based ...
Zehui Yu +12 more
doaj +1 more source
Morphological and Molecular Characterization of Pseudocercospora chionanthi-retusi Causing Leaf Spot on Chionanthus retusus in Korea [PDF]
Leaves of Chionanthus retusus were found to be damaged by leaf spot disease associated with a fungus in Iksan, Korea. Leaf spots were angular to irregular, vein-limited, scattered, 1–8 mm diameter, brownish-gray to dark brown when dry, with heavy ...
In-Young Choi +3 more
doaj +1 more source
Co-targeting RNA Polymerases IV and V Promotes Efficient De Novo DNA Methylation in Arabidopsis. [PDF]
The RNA-directed DNA methylation (RdDM) pathway in plants controls gene expression via cytosine DNA methylation. The ability to manipulate RdDM would shed light on the mechanisms and applications of DNA methylation to control gene expression.
Chory, Joanne +9 more
core +2 more sources
Pol IV-Dependent siRNA Production is Reduced in Brassica rapa
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
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

