Abstract:
A fluoride-cleavable phosphoramidite for biotinylation was designed, synthesized and coupled efficiently to the 5′-end of DNA on an automatic synthesizer. The diisopropylsilyl acetal functionality was used to link the biotin moiety through a tertiary hydroxide group to the 5′-end of DNA. This linkage proved to be completely stable under certain post-synthetic DNA cleavage/deprotection conditions [0.05 M K
Nucleic Acids Research.2002:31(2):708