Synthesis and anti-influenza virus-A activity of circular dumbbell RNA DNA chimeric oligonucleotides
Abe, T.; Hatta, T.; Yamakawa, H.; Takai, K.; Yokota, T.; Takaku, H.
Nucleic Acids Symposium Series 37: 219-220
1997
ISSN/ISBN: 0261-3166 PMID: 9586078 Document Number: 470072
We have designed a new type of antisense oligonucleotide, containing two hairpin loop structures with RNA/DNA base pairs (sense (RNA) and antisense (DNA)) in the double helical stem (nicked and circular dumbbell DNA/RNA chimeric oligonucleotides). The reaction of the nicked and circular dumbbell DNA/RNA chimeric oligonucleotides with RNase H gave the corresponding anti-DNA together with the sense RNA cleavage products. These oligonucleotides were more resistant to exonuclease attack. We also describe the anti-Fluv activities of circular dumbbell DNA/RNA chimeric oligonucleotides.