Abstract
Two pyrene-labeled bases, (py)C and (8py)G, have been synthesized and incorporated into d(CG)n. In the CD spectra, structural transition of a modified oligodeoxynucleotide (ODN-Py) from B-form to Z-form has been observed under different salt concentrations. The conformational transition of ODN-Py was monitored by the change of emission wavelengths based on exciplex and monomer fluorescence of (py)C and (8py)G.
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