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  • Title: A laser Raman spectroscopic study of the interaction of the methylmercury cation with AMP, ADP and ATP.
    Author: Tajmir-Riahi HA, Langlais M, Savoie R.
    Journal: Biochim Biophys Acta; 1988 Oct 12; 956(3):211-6. PubMed ID: 3167070.
    Abstract:
    The interaction of the CH3Hg+ cation with adenosine 5'-monophosphate, adenosine 5'-diphosphate, and adenosine 5'-triphosphate has been studied in aqueous solution at neutral pH by laser Raman spectroscopy. Metal binding is shown to occur preferentially at the N-1 ring position of adenine, with some indication of coordination to the N-7 site and substitution of a proton on the exocyclic NH2 group of the nucleic base. Binding of the cation to phosphate groups also occurs extensively, with both the -PO2-3 and -PO-2 groups. The equilibrium constants for the binding to the phosphate groups and for N-1 coordination are approx. 70 and 600 M-1, respectively.
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