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Updated: May 15, 2026
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Nucleoside Triphosphates - From Synthesis to Biochemical Characterization
Published on: April 3, 2014
Phosphodeoxyribosyltransferases, designed enzymes for deoxyribonucleotides synthesis
Pierre Alexandre Kaminski1, Gilles Labesse
1Institut Pasteur, Unité de Chimie et Biocatalyse, CNRS, UMR 3523, 75724 Paris cedex 15, France. pierre-alexandre.kaminski@pasteur.fr
The Journal of Biological Chemistry
|January 18, 2013
Summary
Researchers engineered novel enzymes to create deoxyribonucleoside triphosphates (dNTP) analogues for DNA metabolism research. These enzymes enable efficient synthesis and cellular delivery of base analogues, overcoming previous limitations.
Area of Science:
- Biochemistry
- Molecular Biology
- Enzyme Engineering
Background:
- Nucleoside analogues are synthesized to interfere with DNA metabolism.
- In vivo, analogue concentration and phosphorylation limit their effectiveness.
- Current methods face challenges in delivering these compounds effectively.
Purpose of the Study:
- To design novel enzymes for synthesizing deoxyribonucleoside triphosphates (dNTP) analogues.
- To overcome limitations in analogue concentration and cellular delivery.
- To create new tools for DNA metabolism research.
Main Methods:
- Enzyme engineering by combining a nucleoside deoxyribosyltransferase and a 5'-monophosphate-2'-deoxyribonucleoside hydrolase.
- Creation of active chimera enzymes from distantly related sources (lactobacilli and rat).
- In vitro biosynthesis using the engineered enzymes with base analogues.
Main Results:
- Successfully created active chimera enzymes with novel enzymatic activity.
- Extended enzyme activity to deoxyribose triphosphate synthesis.
- Demonstrated successful in vitro biosynthesis of dNTP analogues using various base analogues.
Conclusions:
- Engineered enzymes offer a new platform for synthesizing dNTP analogues.
- These enzymes facilitate the delivery of base analogues into cells.
- Provides novel tools for research in DNA metabolism and therapeutic development.
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