Base-Resolution Analysis of Deoxyuridine at the Genome Scale Based on the Artificial Incorporation Modified Nucleobase.

ACS Cent Sci

College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan, 430072 Hubei, China.

Published: June 2021

AI Article Synopsis

  • Deamination of cytosine and the misincorporation of dUMP can lead to the presence of uracil in DNA.
  • The study introduces AI-seq, a method that allows for the detailed profiling of uracil at a single nucleotide level and highlights its concentration in centromeric regions.
  • Findings suggest that the detected uracil sites originate from cytosine deamination and demonstrate the potential importance of uracil as an epigenetic modification in biological processes.

Article Abstract

Deamination of cytosine and dUMP misincorporation have been found to be capable of producing uracil in the genome. This study presents the AI-seq (artificial incorporation modified nucleobase for sequencing), a "base substitution", which not only is capable of profiling uracil at single-nucleotide resolution and showing its centromeric enrichment but could also reveal that the identified uracil sites are derived from cytosine deamination. All the results indicate the potential biological significance of uracil as the epigenetic modification.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227591PMC
http://dx.doi.org/10.1021/acscentsci.0c01504DOI Listing

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