Chemistry Letters, Vol.29, No.2, 108-109, 2000
Azobenzene-appended oligonucleotides form unexpectedly stable triple-helixes
Modified oligo(T)s carrying an azobebzene at the 5'-ends form unexpectedly stable triple-helixes with oligo(A)/oligo(T) double-helix. The tripler-stabilizing activity of the azobenzene is comparable with (or greater than) that of thymine.