Interactions between DNA purinic bases and amodiaquine: A theoretical approach

Orbital: The Electronic Journal of Chemistry

Endereço:
Av. Senador Filinto Muller, 1555
Campo Grande / MS
79074-460
Site: http://www.orbital.ufms.br
Telefone: (67) 3345-3676
ISSN: 19846428
Editor Chefe: Adilson Beatriz
Início Publicação: 28/02/2009
Periodicidade: Trimestral
Área de Estudo: Química

Interactions between DNA purinic bases and amodiaquine: A theoretical approach

Ano: 2010 | Volume: 2 | Número: 1
Autores: Valdemar Lacerda Júnior, José Maria Pires, Adilson Beatriz, Maria Lara P. M. Arguelho
Autor Correspondente: Valdemar Lacerda Júnior | [email protected]

Palavras-chave: amodiaquine, adduct formation, fukui index, softness, density functional theory, dft

Resumos Cadastrados

Resumo Inglês:

We study theoretically the amodiaquine-adenine and amodiaquine-guanine
adducts formation using Density Functional Theory (B3LYP) and the 6-31G(d) basis set
for the geometry optimizations and 6-31+G(d,p) for the analysis of the global indexes:
electrophilicity (ω), electronic chemical potential (μ), hardness (η) and softness (S),
based in the Frontier Molecular Orbital Theory – FMO. Local softness for nucleophilic
reaction (sk+) sites over guanine was evaluated using Fukui function (f k). We also
evaluated the guanine Electrostatic Potential (EP) values using the (MSK) charge scheme.
The theoretical calculations had demonstrated that the amodiaquine has greater
electronic affinity for the guanine, with irreversible formation of the amodiaquine-guanine
adduct, as reported before on a previous experimental work.