Results 21 to 30 of about 17,369 (190)

Global Run-On sequencing to measure nascent transcription in C. elegans

open access: yesSTAR Protocols, 2021
Summary: Global Run-On sequencing (GRO-seq) is one of the most sensitive techniques to detect nascent transcription from RNA polymerase (Pol) at a genome-wide level.
Piergiuseppe Quarato, Germano Cecere
doaj   +1 more source

Preparation of DNA interstrand cross-link repair intermediates induced by abasic sites

open access: yesMethodsX, 2022
DNA interstrand cross-links (ICLs) are extremely deleterious DNA lesions, which can block different DNA transactions. A major step in ICL repair involves strand cleavage activities flanking the cross-linking site, also known as unhooking.
Jin Tang, Linlin Zhao
doaj   +1 more source

Ribonucleotide and R-Loop Damage in Plastid DNA and Mitochondrial DNA during Maize Development

open access: yesPlants, 2023
Although the temporary presence of ribonucleotides in DNA is normal, their persistence represents a form of DNA damage. Here, we assess such damage and damage defense to DNA in plastids and mitochondria of maize.
Diwaker Tripathi   +2 more
doaj   +1 more source

Tyrosyl-DNA phosphodiesterases are involved in mutagenic events at a ribonucleotide embedded into DNA in human cells.

open access: yesPLoS ONE, 2020
Ribonucleoside triphosphates are often incorporated into genomic DNA during DNA replication. The accumulation of unrepaired ribonucleotides is associated with genomic instability, which is mediated by DNA topoisomerase 1 (Top1) processing of embedded ...
Ayuna Takeishi   +11 more
doaj   +1 more source

50 Years of Giese Reaction – a Personal View

open access: yesAngewandte Chemie, EarlyView.
The Giese‐Reaction celebrates its 50. Birthday, it is a cyclic radical chain reaction centered around C,C‐bond formation in a three component synthesis. This minireview speaks about the birth of the name‐reaction, explains how the complete understanding of its reaction mechanism stimulates new methods in organic synthesis, and why it can proceed in ...
Martin Spichty   +4 more
wiley   +2 more sources

Transforming RNA Degradation into Accurate RNA Detection: RNase I–Assisted Rolling Circle Amplification for Clinical Samples

open access: yesAngewandte Chemie, EarlyView.
Here, we transform this otherwise destructive enzymatic activity into a powerful diagnostic advantage through an RNase I–assisted rolling circle amplification (RI‐RCA) strategy. By integrating controlled RNase I–mediated RNA digestion with circular DNA templates, this approach enables direct and highly sensitive detection of target RNA sequences. Using
Amal Mathai   +5 more
wiley   +2 more sources

Effect of Processing on Volatile Organic Compounds Formation of Meat—Review

open access: yesApplied Sciences, 2023
Meat is a rich source of different volatile compounds. The final flavor of meat products depends on the raw material and processing parameters.
Iwona Wojtasik-Kalinowska   +5 more
doaj   +1 more source

The Effect of Mitochondrial Dysfunction on Cytosolic Nucleotide Metabolism

open access: yesJournal of Nucleic Acids, 2010
Several enzymes of the metabolic pathways responsible for metabolism of cytosolic ribonucleotides and deoxyribonucleotides are located in mitochondria.
Claus Desler   +2 more
doaj   +1 more source

Divergent prebiotic synthesis of pyrimidine and 8-oxo-purine ribonucleotides

open access: yesNature Communications, 2017
While mechanisms have been proposed for the prebiotic nucleotide synthesis, these require separate (and potentially incompatible) routes for pyrimidines and purines.
Shaun Stairs   +5 more
doaj   +1 more source

Etheno adducts: from tRNA modifications to DNA adducts and back to miscoding ribonucleotides

open access: yesGenes and Environment, 2021
Etheno (and ethano) derivatives of nucleic acid bases have an extra 5-membered ring attached. These were first noted as wyosine bases in tRNAs. Some were fluorescent, and the development of etheno derivatives of adenosine, cytosine, and guanosine led to ...
F. Peter Guengerich, Pratibha P. Ghodke
doaj   +1 more source

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