Abstract
Peptide nucleic acids (PNA) can be designed to target duplex DNA with very high sequence specificity and efficiency via various binding modes. We have designed three domain PNA clamps, that bind stably to predefined decameric homopurine targets in large dsDNA molecules and via a third PNA domain sequence specifically recognize another PNA oligomer. We describe how such three domain PNAs have utility for assembling dsDNA grid and clover leaf structures, and in combination with SNAP‐tag technology of protein dsDNA structures.
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