Results 1 to 10 of about 98,603 (254)

Metal A and metal B sites of nuclear RNA polymerases Pol IV and Pol V are required for siRNA-dependent DNA methylation and gene silencing. [PDF]

open access: yesPLoS ONE, 2009
Plants are unique among eukaryotes in having five multi-subunit nuclear RNA polymerases: the ubiquitous RNA polymerases I, II and III plus two plant-specific activities, nuclear RNA polymerases IV and V (previously known as Polymerases IVa and IVb).
Jeremy R Haag   +2 more
doaj   +2 more sources

Interplay among RNA polymerases II, IV and V in RNA-directed DNA methylation at a low copy transgene locus in Arabidopsis thaliana [PDF]

open access: hybridPlant Molecular Biology, 2013
RNA-directed DNA methylation (RdDM) is an epigenetic process whereby small interfering RNAs (siRNAs) guide cytosine methylation of homologous DNA sequences. RdDM requires two specialized RNA polymerases: Pol IV transcribes the siRNA precursor whereas Pol
Wanhui You   +3 more
openalex   +2 more sources

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   +2 more sources

NRPD4, a protein related to the RPB4 subunit of RNA polymerase II, is a component of RNA polymerases IV and V and is required for RNA-directed DNA methylation [PDF]

open access: diamondGenes & Development, 2009
RNA-directed DNA methylation (RdDM) is an RNAi-based mechanism for establishing transcriptional gene silencing in plants. The plant-specific RNA polymerases IV and V are required for the generation of 24-nucleotide (nt) siRNAs and for guiding sequence ...
Xin‐Jian He   +8 more
openalex   +2 more sources

DragonRNA: Generality of DNA-primed RNA-extension activities by DNA-directed RNA polymerases. [PDF]

open access: goldNucleic Acids Res
Greenwald E   +7 more
europepmc   +2 more sources

Directed evolution of novel polymerase activities: Mutation of a DNA polymerase into an efficient RNA polymerase

open access: greenProceedings of the National Academy of Sciences of the United States of America, 2002
Gang Xia   +5 more
openalex   +2 more sources

DNA topoisomerase 1α promotes transcriptional silencing of transposable elements through DNA methylation and histone lysine 9 dimethylation in Arabidopsis. [PDF]

open access: yesPLoS Genetics, 2014
RNA-directed DNA methylation (RdDM) and histone H3 lysine 9 dimethylation (H3K9me2) are related transcriptional silencing mechanisms that target transposable elements (TEs) and repeats to maintain genome stability in plants. RdDM is mediated by small and
Thanh Theresa Dinh   +14 more
doaj   +1 more source

Taking the Wheel – de novo DNA Methylation as a Driving Force of Plant Embryonic Development

open access: yesFrontiers in Plant Science, 2021
During plant embryogenesis, regardless of whether it begins with a fertilized egg cell (zygotic embryogenesis) or an induced somatic cell (somatic embryogenesis), significant epigenetic reprogramming occurs with the purpose of parental or vegetative ...
Lucija Markulin   +6 more
doaj   +1 more source

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