title: Interactions of anticancer drugs with usual and mismatch base pairs - density functional theory studies.
abstract: The antitumor activity of a drug is associated with its molecular properties as well as its interactions with target molecules. The molecular structures of usual, mismatch base pairs and their drug (Hydroxyurea and 5-Fluorouracil) interacting complexes were studied using density functional theory methods. The two and three-body interaction energies have been used to analyze the influence of a drug on the stability of base pairs. The sharing of electron density between the interacting molecules is shown through electron density difference maps. The Atoms in Molecules theory and Natural Bond Orbital analysis have been performed to study the hydrogen bonds in the drug interacting complexes.
authors.affiliation: Department of Physics, Bharathiar University, Coimbatore - 641 046, India.
authors.forename: P
authors.initials: P
authors.lastname: Deepa
authors.forename: P
authors.initials: P
authors.lastname: Kolandaivel
authors.forename: K
authors.initials: K
authors.lastname: Senthilkumar
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology*; D020137:Base Pair Mismatch / Q000187:drug effects*; D020029:Base Pairing / Q000187:drug effects*; D006860:Hydrogen Bonding; D008962:Models, Theoretical
chemical_list: D000970:Antineoplastic Agents