申请人:Tor Yitzhak
公开号:US20080261823A1
公开(公告)日:2008-10-23
The present invention provides fluorescent nucleoside analogs with conjugated membered heterocycles, including furan and thiophene. The fluorescent nucleoside analogs maintain structural similarity to naturally occurring nucleoside bases, mimicking shape, size, hybridization, and recognition properties. Incorporation of the fluorescent cyclic compounds confers specific photophysical characteristics including a bathochromic (red) shift of the absorption spectrum to minimize absorption overlap with naturally occurring nucleoside bases, and a shift to the long emission wavelength in the visible range. The invention also provides for various methods of synthesizing the fluorescent nucleoside analogs and incorporating the fluorescent analogs in DNA, RNA, or oligomer synthesis. Further, methods of detecting the fluorescent nucleoside analogs in an oligonucleotide or oligomer are provided. The subject compounds are useful as probes in the study of the structure and dynamics of nucleic acids and their complexes with proteins.