Va. Korshun et al., A pyrene seco-pseudonucleoside in constructing interaction-sensitive fluorescent DNA probes, NUCLEOS NUC, 18(11-12), 1999, pp. 2661-2676
Based on 4-(1-pyrenyl)-1,3-butanediol, a pyrene seco-pseudonucleoside, we p
repared a nonnucleotide phosphoramidite reagent and a pyrene-modified LCAA-
CPG-support and employed them in solid-phase synthesis of pyrene-labeled ol
igonucleotides with varying numbers and positions of the pseudonucleoside r
esidues. Changes in the fluorescence intensity and the spectral curve shape
upon hybridization were observed that depended on the position(s) of the m
odified unit(s) in the probe.