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Updated: Nov 5, 2025
08:34
An Engineered Split-TET2 Enzyme for Chemical-inducible DNA Hydroxymethylation and Epigenetic Remodeling
Published on: December 18, 2017
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Formaldehyde regulates tetrahydrofolate stability and thymidylate synthase catalysis
Xiaolei Chen1, Sara Y Chothia1, Jaswir Basran2
1Leicester Institute of Structural and Chemical Biology and School of Chemistry, University of Leicester, Henry Wellcome Building, Lancaster Road, Leicester, LE1 7RH, UK. richard.hopkinson@leicester.ac.uk.
Chemical Communications (Cambridge, England)
|May 17, 2021
Summary
Tetrahydrofolic acid degradation produces formaldehyde, which in turn stabilizes tetrahydrofolic acid. This discovery reveals a new metabolic feedback loop with implications for cancer chemotherapy.
Area of Science:
- Biochemistry
- Metabolic pathways
- Chemical biology
Background:
- Tetrahydrofolic acid (THF) and formaldehyde are crucial human metabolites.
- The precise chemical interactions between THF and formaldehyde in vivo remain largely undefined.
- Understanding these interactions is vital for comprehending folate metabolism and its therapeutic targeting.
Purpose of the Study:
- To elucidate the chemical relationship between tetrahydrofolic acid and formaldehyde.
- To investigate the physiological relevance of their interaction.
- To identify novel regulatory mechanisms in folate metabolism.
Main Methods:
- Nuclear Magnetic Resonance (NMR) spectroscopy was employed to study the reaction between THF and formaldehyde.
- Degradation pathways of THF were analyzed.
- The stability of THF under varying conditions was assessed.
Main Results:
- NMR studies confirmed formaldehyde as a degradation product of THF.
- The reaction between THF and formaldehyde was found to regulate THF stability.
- A novel non-enzymatic feedback mechanism was identified.
Conclusions:
- The interaction between THF and formaldehyde represents a significant non-enzymatic feedback loop in folate metabolism.
- This finding has critical implications for the development and efficacy of folate-targeting cancer therapies.
- Further research into this pathway could optimize chemotherapy strategies for various diseases.
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