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Related Concept Videos

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DNA replication is carried out by a large complex of proteins that act in a coordinated matter to achieve high-fidelity DNA replication. Together this complex is known as the DNA replication machinery or the replisome.
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Updated: Jul 17, 2025

Automated Robotic Liquid Handling Assembly of Modular DNA Devices
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Automated Robotic Liquid Handling Assembly of Modular DNA Devices

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Sterically Enhanced Control of Enzyme-Assisted DNA Assembly.

Oliver J Irving1, Lauren Matthews1, Steven Coulthard1

  • 1School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK.

Chembiochem : a European Journal of Chemical Biology
|September 8, 2023
PubMed
Summary
This summary is machine-generated.

Sterically controlled nuclease enhanced (SCoNE) DNA assembly overcomes limitations of traditional methods for small DNA fragments. This novel approach enables the creation of functionalized DNA structures for analyte detection, outperforming conventional Gibson assembly.

Keywords:
DNA assemblyGibson assemblybiomarker captureenzymatic modifications

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Synthetic Biology

Background:

  • Traditional DNA assembly methods struggle with small DNA fragments (<100 bp) due to limited control over enzymatic modification.
  • This limitation restricts design flexibility and the range of accessible functionalized DNA structures.

Purpose of the Study:

  • To introduce a novel DNA assembly method that overcomes the size limitations of conventional techniques.
  • To enable the preparation of well-defined, functionalized DNA structures for analyte detection.

Main Methods:

  • Developed sterically controlled nuclease enhanced (SCoNE) DNA assembly by incorporating chemical modifications to spatially restrict enzymatic activity.
  • Compared SCoNE DNA assembly with conventional Gibson assembly (GA) using small DNA fragments.

Main Results:

  • SCoNE DNA assembly successfully created functionalized DNA structures with probes for IL-6, procalcitonin (PCT), and biotin.
  • Conventional Gibson assembly failed under identical conditions with the same starting materials.
  • Demonstrated successful analyte capture using sandwich ELISA and biotin probe functionality for product isolation.

Conclusions:

  • SCoNE DNA assembly circumvents the size limitations of conventional GA, enabling the construction of complex DNA nanostructures.
  • This method allows for the preparation of precisely functionalized DNA structures for biosensing applications.
  • SCoNE offers enhanced design flexibility and expands the possibilities for creating functional DNA assemblies.