Sequence-specific cleavage of yeast tRNA(Phe) with oligonucleotides conjugated to a diimidazole construct

Oligonucleotide derivatives conjugated to a chemical construction with two histamine residues imitating the catalytic center of ribonuclease A have been synthesized. In experiments with the conjugates complementary to the 3'-end and to the variable loop and the T loop of yeast tRNA(Phe), it was shown that the compounds can accomplish sequence-specific cleavage of the target RNA in physiologic conditions.