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We describe a ferrocenyl derivative of psoralen which is bound covalently and gives a redox activity to a DNA double-helix. Psoralens are known to react photochemically at their 3,4 and 4',5 double bo...nds. Results of gel electrophoresis showed that the new compound also formed a DNA photoadduct in the same fashion. Since the reaction occurs selectively with double-stranded DNA, the compund should be useful to discriminate the double-helical DNA from the single-stranded form. Preliminary experiment revealed that the compound was applicable for use as redox-labelling agent in an electrochemical gene sensor applications.続きを見る
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