Results 31 to 40 of about 46,331 (223)

Computational investigations on target-site searching and recognition mechanisms by thymine DNA glycosylase during DNA repair process

open access: yesActa Biochimica et Biophysica Sinica, 2022
DNA glycosylase, as one member of DNA repair machineries, plays an essential role in correcting mismatched/damaged DNA nucleotides by cleaving the N-glycosidic bond between the sugar and target nucleobase through the base excision repair (BER) pathways ...
Wang Lingyan   +3 more
doaj   +1 more source

Efficient Biocatalytic Synthesis of Dihalogenated Purine Nucleoside Analogues Applying Thermodynamic Calculations [PDF]

open access: yes, 2020
The enzymatic synthesis of nucleoside analogues has been shown to be a sustainable and efficient alternative to chemical synthesis routes. In this study, dihalogenated nucleoside analogues were produced by thermostable nucleoside phosphorylases in ...
Giessmann, Robert T.   +9 more
core   +1 more source

Insights into DNA platination within unusual structural settings [PDF]

open access: yes, 2011
2D [1H, 15N] HSQC NMR spectroscopy has been used to monitor reaction and product formation between [Pt(15NH3)2I2] and nucleic acids possessing irregular topologies and containing site specific phosphorothioate substitution in the phosphodiester backbone.
Harvie, Stephanie   +2 more
core   +2 more sources

Surveying the repair of ancient DNA from bones via high-throughput sequencing

open access: yesBioTechniques, 2015
DNA damage in the form of abasic sites, chemically altered nucleotides, and strand fragmentation is the foremost limitation in obtaining genetic information from many ancient samples. Upon cell death, DNA continues to endure various chemical attacks such
Nathalie Mouttham   +4 more
doaj   +1 more source

When the Ends Justify the Means: Regulation of Telomere Addition at Double-Strand Breaks in Yeast

open access: yesFrontiers in Cell and Developmental Biology, 2021
Telomeres, repetitive sequences located at the ends of most eukaryotic chromosomes, provide a mechanism to replenish terminal sequences lost during DNA replication, limit nucleolytic resection, and protect chromosome ends from engaging in double-strand ...
Remington E. Hoerr   +2 more
doaj   +1 more source

Biosynthesis of Kaitocephalin: A Neuroprotective Natural Product Featuring a Peptide‐Like yet Nonpeptidic Scaffold

open access: yesAngewandte Chemie, EarlyView.
Kaitocephalin (KCP) is a neuroprotective fungal metabolite with a unique scaffold of amino acids linked via C–C bonds. Genome‐transcriptome analyses identified its biosynthetic gene cluster (kpb cluster) in Eupenicillium shearii. LC‐MS/MS profiling identified four new KCP‐related compounds.
Yukari Maeno   +5 more
wiley   +2 more sources

Molecular dissection of the domain architecture and catalytic activities of human PrimPol [PDF]

open access: yes, 2014
PrimPol is a primase–polymerase involved in nuclear and mitochondrial DNA replication in eukaryotic cells. Although PrimPol is predicted to possess an archaeo-eukaryotic primase and a UL52-like zinc finger domain, the role of these domains has not been ...
Aidan J. Doherty   +45 more
core   +2 more sources

Enzymatic synthesis of DNA strands containing α-L-LNA (α-L-configured locked nucleic acid) thymine nucleotides [PDF]

open access: yesArtificial DNA: PNA & XNA, 2012
We describe the first enzymatic incorporation of an α-L-LNA nucleotide into an oligonucleotide. It was found that the 5'-triphosphate of α-L-LNA is a substrate for the DNA polymerases KOD, 9°N(m), Phusion and HIV RT. Three dispersed α-L-LNA thymine nucleotides can be incorporated into DNA strands by all four polymerases, but they were unable to perform
Højland   +4 more
openaire   +4 more sources

Karakteristik Gen Sitokrom C Oksidase Sub Unit I (CO1) Lebah Liar Apis cerena (Hymenoptera: apidae) Asal Pulau Hoga Sulawesi Tenggara

open access: yesJurnal Veteriner, 2018
The study was conducted to assess the caracteristic of cytochrome C oxidase subunit I (COI) gene on wild honey bee Apis cerena, and detection of barcode sites from these gene. A total fifteen individual A.
Suriana Suriana   +2 more
doaj   +1 more source

Evolutionary implications of inversions that have caused intra-strand parity in DNA

open access: yesBMC Genomics, 2007
Background Chargaff's rule of DNA base composition, stating that DNA comprises equal amounts of adenine and thymine (%A = %T) and of guanine and cytosine (%C = %G), is well known because it was fundamental to the conception of the Watson-Crick model of ...
Wei John   +2 more
doaj   +1 more source

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