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Updated: Oct 11, 2026

Nucleoside Triphosphates - From Synthesis to Biochemical Characterization
Published on: April 3, 2014
[Chemical ribonucleases. 2. Design and hydrolytic properties RNase mimetics based on diazabicyclo[2.2.2]octane with
M A Zenkova1, A V Vlasov, D A Konevets
1Novosibirsk Institute of Bioorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia. marzen@niboch.nsc.ru
Abstract:
A procedure was proposed allowing one to synthesize RNA mimics on the basis of conjugates of diazabicyclo[2.2.2]octane with imidazole bearing a varying number of positive charges (nDm series, where n is the number of positive charges at neutral pH, m is the code of an imidazole-containing fragment of the catalytic domain: 1, histamine; 2, histidine methyl ester). The hydrolytic activity of six compounds of this series was studied under physiological conditions using in vitro transcript of human mitochondrial tRNA(Lys) as a substrate. It was shown that the rate of RNA hydrolysis with nDm conjugates rises with an increase in the number of positive charges: an approximately 30-fold acceleration of hydrolysis was observed with an increase in the total charge of the construct from +2 to +4.
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