Oligonucleotides having covalently linked anthracene at specific sugar residue: Differential binding to DNA and RNA and fluorescence properties
摘要:
Oligonucleotide 15 -mers containing 2-anthracenylmethyl groups at specific sugar residues have been synthesized from the 2'-anthracene-modified uridine. The modified oligonucleotides bind to both the complementary DNA and RNA segments. The induced CD at around 375 nm due to the anthracene chromophore was seen only for the anthracene-modified duplexes with DNA but not for those with RNA, which is in good agreement with the modification-induced stability of the duplexes. The oligonucleotide with anthracene at the specified sugar residue exhibits enhanced fluorescence upon binding to the complementary RNA segment.
Oligonucleotides having covalently linked anthracene at specific sugar residue: Differential binding to DNA and RNA and fluorescence properties
摘要:
Oligonucleotide 15 -mers containing 2-anthracenylmethyl groups at specific sugar residues have been synthesized from the 2'-anthracene-modified uridine. The modified oligonucleotides bind to both the complementary DNA and RNA segments. The induced CD at around 375 nm due to the anthracene chromophore was seen only for the anthracene-modified duplexes with DNA but not for those with RNA, which is in good agreement with the modification-induced stability of the duplexes. The oligonucleotide with anthracene at the specified sugar residue exhibits enhanced fluorescence upon binding to the complementary RNA segment.