Determining the mode of interaction of calf thymus DNA with the drug sumatriptan using voltammetric and spectroscopic techniques

作者：Shahabadi Nahid^*; Moghadam Neda Hosseinpour

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2012, 99: 18-22.

DOI：10.1016/j.saa.2012.09.022

• Sumatriptan
• Calf thymus DNA (CT-DNA)
• Voltammetric studies
• Spectroscopy
• Intercalation

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.

• 出版日期2012-12-15