Theoretical investigation of the triphosphate forms of azidothymidine and thymidine |
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Authors: | Arissawa Marcia Felcman Judith Herrera Juan Omar Machucca |
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Affiliation: | Departamento de Quimica, Pontificia Universidade Catolica do Rio de Janeiro-Rua Marques de Sao Vicente 225, Gavea, Rio de Janeiro, Brazil. marissawa@bio.fiocruz.br |
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Abstract: | In this paper we investigate (using AM1 semi-empirical as well as HF methods at the STO-3G, 3-21G, 6-31G, 6-31G* and 6-31+G** level) the conformations, geometrical parameters, Mulliken charges, and solvation effects of the triphosphate form of AZT (AZTTP), as well as the thymidine nucleotide (dTTP) structure. Our calculated geometrical parameters and Mulliken charges, with and without solvation effects, are correlated with recent experimental results. |
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