Abstract
The new molecular ligand naphthyridine carbamate dimer (NC), possessing 2-amino-1,8-naphthyridines and a carbamate linker, specially binds to guanine-guanine (G-G) mismatch in duplex DNA. The results of T(m) measurements showed that NC selectively bound to CGG/CGG triad with high deltaT(m) of 23.1 degrees C. The exclusive stoichiometry 2:1 of the complex of NC with CGG/CGG triad, obtained by the measurements of cold spray ionization time-of-flight mass spectrometry (CSI-TOF MS), showed that NC bound to CGG/CGG triad strongly with two molecules.
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