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Published on: February 9, 2024
A microbiological system for screening the interference of XNA monomers with DNA and RNA metabolism
Aude Blanchard1, Mikhail Abramov2, Camille Hassan1
1Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay 2 Rue Gaston Crémieux 91057 Evry France vpezo@genoscope.cns.fr.
Abstract:
We explored the toxicity and mutagenicity of a wide range of xenobiotic nucleoside triphosphates to an Escherichia coli strain equipped with a nucleoside triphosphate transporter. This bacterial test provides a tool to evaluate and guide the synthesis of nucleotides for applications such as the propagation of non-natural genetic information or the selection of potential drugs.
Insights
We tested foreign nucleoside triphosphates for toxicity and mutagenicity in E. coli. This bacterial assay aids in developing nucleotides for new genetic information and drug discovery.
Area of Science:
- Microbiology
- Molecular Biology
- Biochemistry
Background:
- Xenobiotic nucleoside triphosphates are increasingly synthesized for various biotechnological applications.
- Evaluating the safety and biological impact of these compounds is crucial before widespread use.
- Escherichia coli offers a versatile platform for microbial toxicity and mutagenicity testing.
Purpose of the Study:
- To assess the toxicity and mutagenicity of diverse xenobiotic nucleoside triphosphates.
- To validate a bacterial test system for evaluating nucleotide safety.
- To guide the synthesis of novel nucleotides for genetic engineering and drug development.
Main Methods:
- Utilized an Escherichia coli strain engineered with a nucleoside triphosphate transporter.
- Exposed the bacterial strain to a comprehensive panel of xenobiotic nucleoside triphosphates.
- Monitored bacterial viability and assessed mutagenic potential.
Main Results:
- Identified specific xenobiotic nucleoside triphosphates exhibiting significant toxicity to E. coli.
- Determined the mutagenic profiles of tested compounds.
- Demonstrated the utility of the bacterial system in distinguishing toxic and non-toxic nucleotides.
Conclusions:
- The developed bacterial test is effective for evaluating xenobiotic nucleoside triphosphate safety.
- This assay can guide the rational design and synthesis of nucleotides.
- The findings support the application of nucleotides in propagating non-natural genetic information and drug selection.
