H. Sigmund et al., A NEW-TYPE OF FLUORESCENCE LABELING OF NUCLEOSIDES, NUCLEOTIDES AND OLIGONUCLEOTIDES, Nucleosides & nucleotides, 16(5-6), 1997, pp. 685-696
Fluorescein has been coupled to the amino groups of the common nucleos
ides via a carbamoyl spacer to form a new type of conjugates. The corr
esponding phosphoramidites have been prepared with Npe and Npeoc prote
cting groups for application in oligonucleotide synthesis. Hybridizati
ons have been studied in dependence of the fluorescing label as well a
s fluorescence quantum yields and fluorescence anisotropy effects.