Concepedia

Abstract

Cyclohexanyl nucleic acid (CNA) represents a novel enantioselective Watson–Crick base-pairing system. Homochiral oligomers of equivalent chirality show antiparallel Watson–Crick pairing, while those of opposite sense do not. D-CNA hybridizes with natural nucleic acids, preferentially with RNA. A conformational change involving chair inversion is expected to occur upon duplex formation (A→B).