Abstract
A bipyridine-modified DNA three-way junction (3WJ) structure has been synthesized from three DNA strands modified with a bipyridine (bpy) ligand via a stable amide linker. The bpy-modified 3WJ was thermally stabilized by the formation of an interstrand NiII(bpy)3 complex. Structural induction of the 3WJs and the duplexes was achieved by adding or removing NiII ions. NiII-mediated self-sorting of 3WJs was also demonstrated by using the bpy-modified strands and their unmodified counterparts. More information can be found in the Full Paper by Y. Takezawa, S. Sakakibara, and M. Shionoya (DOI: 10.1002/chem.202102977).
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