Hierarchical Assembly of Nucleic Acid/Coiled-Coil Peptide Nanostructures

J Am Chem Soc. 2020 Jan 22;142(3):1406-1416. doi: 10.1021/jacs.9b11158. Epub 2020 Jan 5.

Abstract

DNA and peptides are two of the most commonly used biomolecules for building self-assembling materials, but few examples exist of hybrid nanostructures that contain both components. Here we report the modification of two peptides that comprise a coiled-coil heterodimer pair with unique DNA handles in order to link DNA origami nanostructures bearing complementary strands into micrometer-long one-dimensional arrays. We probed the effect of number of coils on self-assembly and demonstrated the formation of structures through multiple routes: one-pot assembly, formation of dimers and trimers and an alternating copolymer of two different origami structures, and stepwise assembly of purified structures with coiled-coil conjugates. Our results demonstrate the successful merging of two distinct self-assembly modes to create hybrid bionanomaterials expected to have a range of potential applications in the future.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Nanostructures / chemistry*
  • Nucleic Acids / chemistry*
  • Peptides / chemistry*

Substances

  • Nucleic Acids
  • Peptides