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DNA Binding, Antioxidant Activity, and DNA Damage Protection of Chiral Macrocyclic Mn(III) Salen Complexes
Author(s) -
Pandya Nirali,
Khan Noorul H.,
Prathap K. Jeya,
Kureshy Rukhsana I.,
Abdi Sayed H. R.,
Mishra Sandhya,
Bajaj Hari C.
Publication year - 2012
Publication title -
chirality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.43
H-Index - 77
eISSN - 1520-636X
pISSN - 0899-0042
DOI - 10.1002/chir.22098
Subject(s) - chemistry , dna damage , dna , radical , chirality (physics) , reactive oxygen species , hydroxyl radical , comet assay , stereochemistry , antioxidant , superoxide , biochemistry , enzyme , chiral symmetry breaking , physics , quantum mechanics , nambu–jona lasinio model , quark
We are reporting the synthesis, characterization, and calf thymus DNA binding studies of novel chiral macrocyclic Mn(III) salen complexes S ‐1 , R ‐1 , S ‐2 , and R ‐2 . These chiral complexes showed ability to bind with DNA, where complex S ‐1 exhibits the highest DNA binding constant 1.20 × 10 6 M −1 . All the compounds were screened for superoxide and hydroxyl radical scavenging activities; among them, complex S ‐1 exhibited significant activity with IC 50 1.36 and 2.37 μM, respectively. Further, comet assay was used to evaluate the DNA damage protection in white blood cells against the reactive oxygen species wherein complex S ‐1 was found effective in protecting the hydroxyl radicals mediated plasmid and white blood cells DNA damage. Chirality 24:1063–1073, 2012 .© 2012 Wiley Periodicals, Inc.