[structure in text] The synthesis of (2S,4S)- and (2R,4S)-aepPNA monomers of adenine, guanine, and cytosine (3-5) and their incorporation at appropriate positions into aegPNA sequence 7 leads to mixed aeg-aep backbone/mixed nucleobase PNAs 8-11. The thermal stabilities of the derived duplexes with DNA are found to be dependent on nucleobase and backbone stereochemistry.
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D’Costa et al. (2001) studied this question.
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