New ligand combinations for the efficient stabilization of short nucleic acid hairpins
摘要:
Short nucleic acid hairpins (one or two base-pair stems) were strongly stabilized by simple chemical modifications. Non-nucleosidic pyrene or naphtalene diimide derivatives were appended at both 3' and 5' nearby ends of 2'-OMe RNA hairpins, yielding a very large increase in melting temperatures of the modified structures (from +21 to +55degreesC). The excimer formation between the two consecutive pyrene units is in favor of end-stacked pyrenyl rings. (C) 2002 Published by Elsevier Science Ltd.
New ligand combinations for the efficient stabilization of short nucleic acid hairpins
摘要:
Short nucleic acid hairpins (one or two base-pair stems) were strongly stabilized by simple chemical modifications. Non-nucleosidic pyrene or naphtalene diimide derivatives were appended at both 3' and 5' nearby ends of 2'-OMe RNA hairpins, yielding a very large increase in melting temperatures of the modified structures (from +21 to +55degreesC). The excimer formation between the two consecutive pyrene units is in favor of end-stacked pyrenyl rings. (C) 2002 Published by Elsevier Science Ltd.
Short nucleic acid hairpins (one or two base-pair stems) were strongly stabilized by simple chemical modifications. Non-nucleosidic pyrene or naphtalene diimide derivatives were appended at both 3' and 5' nearby ends of 2'-OMe RNA hairpins, yielding a very large increase in melting temperatures of the modified structures (from +21 to +55degreesC). The excimer formation between the two consecutive pyrene units is in favor of end-stacked pyrenyl rings. (C) 2002 Published by Elsevier Science Ltd.