Results 41 to 50 of about 17,369 (190)
Biomolecules, 2020 The catalytic active site of the Polymerization Domain (PolDom) of bacterial Ligase D is designed to promote realignments of the primer and template strands and extend mispaired 3′ ends.
Alejandro Sánchez-Salvador +1 more
doaj +1 more source
Genetic requirements for repair of lesions caused by single genomic ribonucleotides in S phase
Nature Communications, 2023 RNase H2 removes mutagenic rNMPs from genomic DNA. The authors demonstrate how nicked rNMPs are repaired when they are encountered in S phase. This study unveils genetic interactions that could potentially be exploited in RNase H2-deficient pathologies.
Natalie Schindler +10 more
doaj +1 more source
Polynucleotide phosphorylase: Not merely an RNase but a pivotal post-transcriptional regulator. [PDF]
PLoS Genetics, 2018 Almost 60 years ago, Severo Ochoa was awarded the Nobel Prize in Physiology or Medicine for his discovery of the enzymatic synthesis of RNA by polynucleotide phosphorylase (PNPase).
Todd A Cameron +2 more
doaj +1 more source
Molecules, 2022 Sofosbuvir is the first approved direct-acting antiviral (DAA) agent that inhibits the HCV NS5B polymerase, resulting in chain termination. The molecular models of the 2′-dihalo ribonucleotides used were based on experimental biological studies of HCV ...
Ahmed Khalil +3 more
doaj +1 more source
Convergent allostery in ribonucleotide reductase
Nature Communications, 2019 Ribonucleotide reductase (RNR) catalyzes the conversion of ribonucleotides to deoxyribonucleotides, which is an essential step in DNA synthesis. Here the authors use small-angle X-ray scattering, X-ray crystallography, and cryo-electron microscopy to ...
William C. Thomas +7 more
doaj +1 more source
Animal Research and One Health, EarlyView.Woody breast compromises meat quality leading to reduced consumer appeal. Although its causes are unclear, improvements observed with certain dietary supplements suggest that gut health may influence woody breast development. Ribonucleotide reductase subunit RRM2 is vital for mitochondrial function and gastrointestinal integrity, and alteration in its ...
Majid Shakeri +8 more
wiley +1 more source
BMC Plant Biology, 2023 Background The mechanisms and regulation for DNA replication in plant organelles are largely unknown, as few proteins involved in replisome assembly have been biochemically studied.
Antolin Peralta-Castro +5 more
doaj +1 more source
Chemistry – A European Journal, EarlyView.Here we report a synthesis of the dinucleotide 4 for a projected future total synthesis of the m7G cap 1. Highlights of the route include: 1) a 3ʹ‐H‐phosphonate/5ʹ‐selenocyanate Michaelis‐Arbuzov coupling to forge the 3ʹ,5ʹ‐phosphoroselenolate; 2) an Amosova reductive selenomethylation to install the 2ʹ‐SeMe; 3) a solid CPR II 5ʹ‐O‐phosphitylation; and
K. Lawrence E. Hale +2 more
wiley +1 more source
Cell Reports, 2017 Summary: RNA viruses pose a threat to public health that is exacerbated by the dearth of antiviral therapeutics. The RNA-dependent RNA polymerase (RdRp) holds promise as a broad-spectrum, therapeutic target because of the conserved nature of the ...
David Dulin +9 more
doaj +1 more source
Rational Design Strategies for Stimuli‐Responsive DNAzymes Using Modified and Artificial Nucleotides
Chemistry – A European Journal, EarlyView.Activity control of RNA‐cleaving DNAzymes in response to external stimuli has attracted growing interest for applications in DNA‐based diagnostics, therapeutics, and dynamic DNA nanotechnology. This review summarizes rational design strategies for stimuli‐responsive DNAzymes using modified or artificial nucleotides, including split and caged DNAzymes ...
Yusuke Takezawa, Mitsuhiko Shionoya
wiley +1 more source