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DNA binding behaviour of mixed ligand vanadium(V) complex based on novel tridentate hydrazone and benzhydroxamic acid ligand systems
Author(s) -
Inamdar Poonam,
Angappan Sheela
Publication year - 2017
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3573
Subject(s) - chemistry , ethidium bromide , hydrazone , intercalation (chemistry) , ligand (biochemistry) , acridine orange , acridine , vanadium , stereochemistry , circular dichroism , bromide , dna , inorganic chemistry , organic chemistry , biochemistry , receptor , apoptosis
Novel tridentate ONO hydrazone ligand (HL) and the corresponding vanadium(V) complex, [VO(HL)(Benz)], based on the ligand and benzhydroxamic acid, were synthesized and characterized using UV–visible, Fourier transform infrared, NMR and mass spectral studies. In order to assess the binding efficacy of the synthesized complex with DNA, UV absorption spectral titrations, fluorescence displacement assays using ethidium bromide and acridine orange dyes, circular dichroism, viscosity and molecular docking studies were carried out. Based on the results obtained, it is evident that the complex shows significant intercalating ability almost comparable to that of the standard intercalator drug cisplatin. The binding affinity values for the [VO(HL)(Benz)] complex and cisplatin were found to be (3.84 ± 0.08) × 10 4 M −1 and (4.27 ± 0.012) × 10 4 M −1 . In addition, the cytotoxicity of [VO(HL)(Benz)] was also assessed by MTT assay against the MCF‐7 cell line.