Results 21 to 30 of about 249,842 (263)

New link between the RNA polymerase II-CTD and replication stress

open access: yesMolecular & Cellular Oncology, 2021
Conflicts between transcription and replication are a major source of replication stress. Our recent findings show that proper dephosphorylation of Serine 5 in the carboxy-terminal domain (CTD) of DNA-directed RNA polymerase II subunit RPB1 is needed to ...
Helga B. Landsverk   +3 more
doaj   +1 more source

DNA-directed DNA Polymerase and Strand Displacement Activity of the Reverse Transcriptase Encoded by the R2 Retrotransposon [PDF]

open access: yesJournal of Molecular Biology, 2007
R2 elements are non-long terminal repeat (non-LTR) retrotransposons with a single open reading-frame encoding reverse transcriptase, DNA endonuclease and nucleic acid-binding domains. The elements are specialized for insertion into the 28 S rRNA genes of many animal phyla.
Anna, Kurzynska-Kokorniak   +3 more
openaire   +2 more sources

Amplification of 4–9-kb Human Genomic DNA Flanking a Known Site Using a Panhandle PCR Variant

open access: yesBioTechniques, 1997
We present a method for the in vitro amplification of >6.0 kb of DNA flanking a known site. This is accomplished by ligating an oligonucleotide to create an inverted repeat of a portion of the known sequence, followed by single-primer polymerase chain ...
Douglas H. Jones, Stanley C. Winistorfer
doaj   +1 more source

The ability to form homodimers is essential for RDM1 to function in RNA-directed DNA methylation. [PDF]

open access: yesPLoS ONE, 2014
RDM1 (RNA-DIRECTED DNA METHYLATION1) is a small plant-specific protein required for RNA-directed DNA methylation (RdDM). RDM1 interacts with RNA polymerase II (Pol II), ARGONAUTE4 (AGO4), and the de novo DNA methyltransferase DOMAINS REARRANGED ...
Taku Sasaki   +4 more
doaj   +1 more source

The Pseudorabies Virus DNA Polymerase Accessory Subunit UL42 Directs Nuclear Transport of the Holoenzyme

open access: yesFrontiers in Microbiology, 2016
Pseudorabies virus (PRV) DNA replication occurs in the nuclei of infected cells and requires the viral DNA polymerase. The PRV DNA polymerase comprises a catalytic subunit, UL30, and an accessory subunit, UL42, that confers processivity to the enzyme ...
Yi-Ping eWang   +6 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

DNA-Directed Polymerase Subunits Play a Vital Role in Human Telomeric Overhang Processing [PDF]

open access: yesMolecular Cancer Research, 2015
Abstract Telomeres consist of TTAGGG repeats bound by the shelterin complex and end with a 3′ overhang. In humans, telomeres shorten at each cell division, unless telomerase (TERT) is expressed and able to add telomeric repeats.
Raffaella, Diotti   +3 more
openaire   +2 more sources

A DCL3 dicing code within Pol IV-RDR2 transcripts diversifies the siRNA pool guiding RNA-directed DNA methylation

open access: yeseLife, 2022
In plants, selfish genetic elements, including retrotransposons and DNA viruses, are transcriptionally silenced by RNA-directed DNA methylation. Guiding the process are short interfering RNAs (siRNAs) cut by DICER-LIKE 3 (DCL3) from double-stranded ...
Andrew Loffer   +5 more
doaj   +1 more source

Visualizing DNA polymerase ι catalyze Hoogsteen-directed DNA synthesis

open access: yesNature Communications
Translesion synthesis polymerases efficiently incorporate nucleotides opposite DNA lesions. Pol ι, for example, bypasses minor-groove and exocyclic purine adducts.
Zach Frevert   +6 more
doaj   +1 more source

The Inhibitory Action of Kohamaic Acid A Derivatives on Mammalian DNA Polymerase β

open access: yesMolecules, 2008
We previously isolated a novel natural product, designated kohamaic acid A (KA-A, compound 1), as an inhibitor of the first cleavage of fertilized sea urchin eggs, and found that this compound could selectively inhibit the activities of mammalian DNA ...
Yoshiyuki Mizushina   +9 more
doaj   +1 more source

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