[Interaction of Ag+ ions with ribonucleotides of canonical bases]
V A Sorokin1, V A Valeev, G O Gladchenko
1Verkin Physicotechnical Institute of Low Temperatures, National Academy of Sciences of Ukraine, Khar'kov.
Abstract:
The interaction of Ag+ ions with ribonucleotides of canonical bases in aqueous solution was studied by differential UV spectroscopy. Atoms coordinating silver ions (N7, O6 of guanosine 5'-monophosphate, N3, O2 of cytidine 5'-monophosphate, N7, N1, N3 of adenosine 5'-monophosphate and N3 of uridine 5'-monophosphate) and the binding constants characterizing the formation of appropriate complexes were determined. The differences in the relative affinity of Ag+ ions for the atoms of nucleotide bases correlate with the potential on them.
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