title: A local transconformation allowing the strands of double-stranded nucleic acid to be separated.
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004247:DNA; D008962:Models, Theoretical; D009690:Nucleic Acid Conformation; D012399:Rotation
chemical_list: D004247:DNA