Báo cáo khoa học: Interaction of DAPI with individual strands of trinucleotide repeats Effects on replication in vitro of the AATÆATT triplet
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The structural changes produced by the minor-groove binding ligand DAPI (4¢,6-diamidine-2-phenylindole) on individual strands of trinucleotide repeat sequences were detectedby electrophoreticband-shift analysis andrelated to their effects on DNA replication in vitro. Among the 20 possible single-stranded trinucleotide repeats, only theT-rich strand of the AATÆATT triplet exhibits an observable fluorescence band and a change in electrophoretic mobility due to the drug binding.
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