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Related Experiment Video

Updated: Nov 23, 2025

Design and Synthesis of a Reconfigurable DNA Accordion Rack
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Design and Synthesis of a Reconfigurable DNA Accordion Rack

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A sequential strand-displacement strategy enables efficient six-step DNA-templated synthesis.

Yu He1, David R Liu

  • 1Howard Hughes Medical Institute, Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA.

Journal of the American Chemical Society
|June 11, 2011
PubMed
Summary

We created a new DNA-templated synthesis (DTS) method for efficient multistep reactions. This DNA-encoded process yields complex molecules, useful for creating diverse synthetic libraries for drug discovery.

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Area of Science:

  • Synthetic chemistry
  • Molecular biology
  • Biotechnology

Background:

  • DNA-templated synthesis (DTS) enables the creation of complex molecules using DNA as a scaffold.
  • Multistep DTS is crucial for building intricate molecular architectures but often suffers from low yields.
  • Efficient and programmable multistep synthesis remains a key challenge in chemical biology.

Purpose of the Study:

  • To develop a novel sequential strand-displacement strategy for multistep DNA-templated synthesis (DTS).
  • To demonstrate the efficiency and utility of this strategy for constructing complex synthetic molecules.
  • To enable the translation of DNA sequences into high-complexity synthetic libraries for applications like in vitro selection.

Main Methods:

  • Development of a sequential strand-displacement mechanism for stepwise chemical reactions on a DNA template.

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Last Updated: Nov 23, 2025

Design and Synthesis of a Reconfigurable DNA Accordion Rack
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Plasmid-derived DNA Strand Displacement Gates for Implementing Chemical Reaction Networks
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  • Execution of a six-step DNA-templated synthesis using the developed strategy.
  • Analysis of reaction yields and product characterization.

    • Main Results:

    • An efficient six-step DNA-templated synthesis was achieved with a 35% overall yield.
    • The average yield per step was remarkably high at 83%.
    • The final synthetic product remained covalently linked to a DNA sequence encoding its entire reaction history.

    Conclusions:

    • The sequential strand-displacement strategy provides an efficient method for multistep DNA-templated synthesis.
    • This approach facilitates the translation of DNA sequences into complex synthetic libraries.
    • The DNA-encoded reaction history enables applications in directed evolution and in vitro selection.