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Updated: Aug 5, 2026
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Chemoselective Modification of Viral Surfaces via Bioorthogonal Click Chemistry
Published on: August 19, 2012
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Modification of DNA Nanostructures with Functional Peptides Through Copper-Free Click Chemistry
Basma Altattan1,2, Christin Möser2, David Smith3,4
1Institute for Molecular Diagnostics und Bioanalysis (IMDB), Potsdam, Germany.
Methods in Molecular Biology (Clifton, N.J.)
|April 2, 2025
Summary
This study presents a method for creating peptide-modified DNA nanostructures. These structures effectively target and inhibit influenza A virus particles through multivalent peptide presentation.
Area of Science:
- Biotechnology
- Nanotechnology
- Virology
Background:
- Influenza A virus poses a significant global health threat.
- Developing effective antiviral strategies is crucial for public health.
- Multivalent molecular designs can enhance binding affinity and therapeutic efficacy.
Purpose of the Study:
- To outline a protocol for synthesizing peptide-modified three-arm DNA nanostructures.
- To demonstrate the functionalization of DNA with a peptide targeting influenza A virus.
- To enable multivalent presentation of peptides for enhanced viral inhibition.
Main Methods:
- Functionalization of amino-modified single-stranded DNA with azide-modified peptide (PeB) via copper-free click chemistry.
- Assembly of peptide-functionalized DNA strands into a three-arm DNA nanostructure.
- Utilizing a peptide derived from the neutralizing antibody HC19 for influenza A virus targeting.
Main Results:
- Successful synthesis of a trivalent DNA-peptide nanostructure.
- Demonstrated multivalent presentation of influenza A virus-targeting peptides.
- Potential for enhanced binding and inhibition of viral particles.
Conclusions:
- The protocol provides a method for creating peptide-decorated DNA nanostructures.
- This approach can be adapted for more complex DNA nanostructures.
- The developed nanostructures show promise for antiviral applications against influenza A virus.
