The nucleosyl amino acid (NAA)-modification of oligonucleotides is introduced, which enables the preparation of oligonucleotides with zwitterionic backbone structures. It is demonstrated that partially zwitterionic NAA-modified DNA oligonucleotides are capable of duplex formation with native polyanionic counterstrands and show retained sensitivity towards base-pairing mismatches.
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| http://dx.doi.org/10.1039/c4cc06371f | DOI Listing |
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