Site-specific intercalation at the triplex-duplex junction induces a conformational change which is detectable by hypersensitivity to diethylpyrocarbonate.
Using site-specific intercalation directed by intermolecular triplex formation, the conformation of an intercalation site in DNA was examined by footprinting with the purine-specific (A much greater than G) reagent diethylpyrocarbonate. Site specific intercalation was achieved by covalently linking an intercalator to the 5' end of a homopyrimidine… (More)