Aminoethylprolyl (aep) PNA: Mixed Purine/Pyrimidine Oligomers and Binding Orientation Preferences for PNA:DNA Duplex Formation
摘要:
[GRAPHICS]The synthesis of (2S,4S)- and (PR,4S)-aepPNA monomers of adenine, guanine, and cytosine (3-5) end 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.
Aminoethylprolyl Peptide Nucleic Acids (aepPNA): Chiral PNA Analogues That Form Highly Stable DNA:aepPNA2 Triplexes
摘要:
[GRAPHICS]The replacement of the glycyl component in the peptide nucleic acid (PNA) backbone by a prolyl unit bearing a nucleobase leads to the aminoethylprolyl (aep) PNAs, which are chiral and cationic. The homooligomeric aepPNA binds to complementary DNA sequences with high affinity and sequence specificity, forming highly stable triplexes.