title: Synthesis, characterization and studies on DNA-binding of a new Cu(II) complex with N1,N8-bis(l-methyl-4-nitropyrrole-2-carbonyl)triethylenetetramine.
abstract: A new Cu(II) complex of CuLCl(2) (here, L=N(1),N(8)-bis(1-methyl-4-nitropyrrole-2- carbonyl)triethylenetetramine) had been synthesized and characterized. The structure of the complex was investigated with density functional theory (DFT) calculations. DNA-binding of the Cu(II) complex and its effects on tumor cell viability were firstly studied. The interactions between the complex and calf thymus DNA had been investigated using UV spectra, fluorescent spectra, viscosity and CV (cyclic voltammetry). The cleavage reaction on plasmid DNA has been monitored by agarose gel electrophoresis. The experimental results show that the mode of binding of the complex to DNA is classical intercalation and the complex can cleave pBR322 DNA. The effects of the CuL on cell viability were tested using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide) dye assay and the results indicate that the CuL had certain effect on cancer cells.
authors.affiliation: Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Wucheng Road 36, Taiyuan, Shanxi 030006, PR China.
authors.forename: Cheng-Yong
authors.initials: CY
authors.lastname: Zhou
authors.forename: Jing
authors.initials: J
authors.lastname: Zhao
authors.forename: Yan-Bo
authors.initials: YB
authors.lastname: Wu
authors.forename: Cai-Xia
authors.initials: CX
authors.lastname: Yin
authors.forename: Yang
authors.initials: Y
authors.lastname: Pin
mesh_terms: D000818:Animals; D002417:Cattle; D003300:Copper / Q000737:chemistry*; D004247:DNA / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008958:Models, Molecular; D011073:Polyamines / Q000138:chemical synthesis / Q000737:chemistry*; D011758:Pyrroles / Q000138:chemical synthesis / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D014783:Viscosity
chemical_list: C518372:N1,N8-bis(l-methyl-4-nitropyrrole-2-carbonyl)triethylenetetramine; D011073:Polyamines; D011758:Pyrroles; D003300:Copper; D004247:DNA