The chemical insertion of 1‐(2′‐deoxy‐β‐D‐ribofuranosyl)‐6,7‐dimethyllumazine (1) and of a bathophenan‐throline‐ruthenium(II) complex into synthetic oligodeoxynucleotides is described. This combination represents a new energy‐transfer system with the lumazine chromophore as donor and the Ru complex as acceptor within the nucleotide. The system can be measured by time‐resolved fluorometry or by lifetime measurements of the lumazine fluorescence and bears the potential of a spectroscopic ruler.
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Bannwarth et al. (1991) studied this question.
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