title: Determining the mode of interaction of calf thymus DNA with the drug sumatriptan using voltammetric and spectroscopic techniques.
abstract: The interaction of native calf thymus DNA with sumatriptan(1-[3-(2-dimethylaminoethyl)-1H-indol-5-yl]-N-methyl-methanesulfonamide) at physiological pH was studied by spectrophotometry, circular dichroism, voltammetry and viscosimetric techniques. Sumatriptan molecule intercalated between base pairs of DNA, showed by a sharp increase in specific viscosity of DNA. In cyclic voltammetry, decrease of the peak current and positive shift indicated that this drug is able to intercalate between the DNA base pairs. In addition, the drug induced changes in the CD spectrum of CT-DNA, as well as hypochromism changes in its UV-vis spectrum.
authors.affiliation: Department of Chemistry, Faculty of Science, Razi University, Kermanshah, Iran. nahidshahabadi@yahoo.com
authors.forename: Nahid
authors.initials: N
authors.lastname: Shahabadi
authors.forename: Neda Hosseinpour
authors.initials: NH
authors.lastname: Moghadam
mesh_terms: D000818:Animals; D000998:Antiviral Agents / Q000494:pharmacology*; D001665:Binding Sites; D002417:Cattle; D002942:Circular Dichroism; D004247:DNA / Q000737:chemistry*; D055664:Electrochemical Techniques; D007364:Intercalating Agents / Q000494:pharmacology*; D008958:Models, Molecular; D013056:Spectrophotometry, Ultraviolet; D018170:Sumatriptan / Q000494:pharmacology*; D014783:Viscosity / Q000187:drug effects
chemical_list: D000998:Antiviral Agents; D007364:Intercalating Agents; D018170:Sumatriptan; D004247:DNA; C427203:calf thymus DNA