Document Detail


Synthesis, characterization and DNA interaction of new copper(II) complexes of Schiff base-aroylhydrazones bearing naphthalene ring.
MedLine Citation:
PMID:  23562627     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Two new copper(II) complexes with the condensation products of methyl 2-naphthyl ketone with 4-hydroxybenzohydrazide, 4-hydroxy-N'-[(1Z)-1-(naphthalen-2-yl)ethylidene]benzohydrazide [HL(1)] and (Z)-ethyl 2-(4-(2-(1-(naphthalen-2-yl)ethylidene)hydrazinecarbonyl)phenoxy)acetate (HL(2)) were synthesized and characterized by elemental analysis, infrared spectra, UV-Vis electronic absorption spectra, magnetic susceptibility measurements, TGA, powder XRD and SEM-EDS. The binding properties of the copper(II) complexes with calf thymus DNA were studied by using the absorption titration method. DNA cleavage activities of the synthesized copper complexes were examined by using agarose gel electrophoresis. The effect of complex concentration on the DNA cleavage reactions in the absence and presence of H2O2 was also investigated. The experimental results suggest that the copper complexes bind significantly to calf thymus DNA by both groove binding and intercalation modes and cleavage effectively pBR322 DNA. The mechanistic studies demonstrate that a hydrogen peroxide-derived species and singlet oxygen ((1)O2) are the active oxidative species for DNA cleavage.
Authors:
Cansu Gökçe; Ramazan Gup
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-3-14
Journal Detail:
Title:  Journal of photochemistry and photobiology. B, Biology     Volume:  122C     ISSN:  1873-2682     ISO Abbreviation:  J. Photochem. Photobiol. B, Biol.     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-4-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804966     Medline TA:  J Photochem Photobiol B     Country:  -    
Other Details:
Languages:  ENG     Pagination:  15-23     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Elsevier B.V. All rights reserved.
Affiliation:
Mugla Sıtkı Koçman University, Department of Chemistry, 48000 Mugla, Turkey.
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