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Molecules 2013, 18(1), 287-310; doi:10.3390/molecules18010287

Chiral Peptide Nucleic Acids with a Substituent in the N-(2-Aminoethy)glycine Backbone

1,*  and 2
1 Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan 2 Faculty of Pharmaceutical Sciences, Teikyo University, Kaga, Itabashi-ku, Tokyo 173-8605, Japan
* Author to whom correspondence should be addressed.
Received: 14 December 2012 / Revised: 19 December 2012 / Accepted: 19 December 2012 / Published: 27 December 2012
(This article belongs to the Special Issue Chemical Protein and Peptide Synthesis)
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A peptide nucleic acid (PNA) is a synthetic nucleic acid mimic in which the sugar-phosphate backbone is replaced by a peptide backbone. PNAs hybridize to complementary DNA and RNA with higher affinity and superior sequence selectivity compared to DNA. PNAs are resistant to nucleases and proteases and have a low affinity for proteins. These properties make PNAs an attractive agent for biological and medical applications. To improve the antisense and antigene properties of PNAs, many backbone modifications of PNAs have been explored under the concept of preorganization. This review focuses on chiral PNAs bearing a substituent in the N-(2-aminoethyl)glycine backbone. Syntheses, properties, and applications of chiral PNAs are described.
Keywords: peptide nucleic acid; chiral; preorganization; antigene peptide nucleic acid; chiral; preorganization; antigene
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Sugiyama, T.; Kittaka, A. Chiral Peptide Nucleic Acids with a Substituent in the N-(2-Aminoethy)glycine Backbone. Molecules 2013, 18, 287-310.

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