ArticleNucleic acids research2020
Impact of 5-formylcytosine on the melting kinetics of DNA by 1H NMR chemical exchange.
Article in Nucleic acids research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 18 citations in OpenAlex.
- 5-Formylcytosine functions as a chemical regulator of nucleosome positioning.Nature communications · 2026Article
- CEST MRI: Translational prospects for intervertebral disc degeneration - from basic research to clinical applications.Journal of orthopaedic translation · 2026Review
- The role of cytosine modification symmetry in mammalian epigenome regulation.Chemical science · 2026Review
- Article
- Kinetics and thermodynamics of BI-BII interconversion altered by T:G mismatches in DNA.Biophysical journal · 2022Article
- The pH-Dependence of the Hydration of 5-Formylcytosine: an Experimental and Theoretical Study.Chembiochem : a European journal of chemical biology · 2022Article
- Developments in solution-state NMR yield broader and deeper views of the dynamic ensembles of nucleic acids.Current opinion in structural biology · 2021Review
- Comparative Nucleosomal Reactivity of 5-Formyl-Uridine and 5-Formyl-Cytidine.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021Article
- Rapid assessment of Watson-Crick to Hoogsteen exchange in unlabeled DNA duplexes using high-power SELOPE iminoMagnetic resonance (Gottingen, Germany) · 2021Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
5-Formylcytosine (5fC) is a chemically edited, naturally occurring nucleobase which appears in the context of modified DNA strands. The understanding of the impact of 5fC on dsDNA physical properties is to date limited. In this work, we applied temperature-dependent 1H Chemical Exchange Saturation Transfer (CEST) NMR experiments to non-invasively and site-specifically measure the thermodynamic and kinetic influence of formylated cytosine nucleobase on the melting process involving dsDNA. Incorporation of 5fC within symmetrically positioned CpG sites destabilizes the whole dsDNA structure-as witnessed from the ∼2°C decrease in the melting temperature and 5-10 kJ mol-1 decrease in ΔG°-and affects the kinetic rates of association and dissociation. We observed an up to ∼5-fold enhancement of the dsDNA dissociation and an up to ∼3-fold reduction in ssDNA association rate constants, over multiple temperatures and for several proton reporters. Eyring and van't Hoff analysis proved that the destabilization is not localized, instead all base-pairs are affected and the transition states resembles the single-stranded conformation. These results advance our knowledge about the role of 5fC as a semi-permanent epigenetic modification and assist in the understanding of its interactions with reader proteins.
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