Schiff base;
Copper (II) complexes;
DNA binding;
DNA cleavage;
CRYSTAL-STRUCTURE;
CLEAVAGE ACTIVITIES;
BINDING;
D O I:
10.1016/j.inoche.2010.08.006
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
A series of copper (II) complexes a-d with Schiff bases ligands derived from the condensation reactions between 2-pyridinecarboxaldehyde and different polyamines (ethylenediamine, diethylenetriamine, triethylenetetramine and tetraethylenepentamine) were synthesized and characterized by elemental analysis. FT-IR spectroscopy, HRMS, molar conductance and molecular modeling studies. The interactions of the copper complexes a-d with DNA were investigated by the UV spectra, viscosity measurements and gel electrophoresis under physiological conditions. The experimental results indicated that four complexes could bind to DNA via an intercalative mode and showed a different DNA cleavage activity with the sequence: d>c>a>b. (C) 2010 Elsevier B.V. All rights reserved.
机构:
Univ Madras, Sch Chem Sci, Dept Inorgan Chem, Madras 600025, Tamil Nadu, IndiaUniv Madras, Sch Chem Sci, Dept Inorgan Chem, Madras 600025, Tamil Nadu, India
Sujatha, Subramaniam
Balasubramanian, Sengottuvelan
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Univ Madras, Sch Chem Sci, Dept Inorgan Chem, Madras 600025, Tamil Nadu, IndiaUniv Madras, Sch Chem Sci, Dept Inorgan Chem, Madras 600025, Tamil Nadu, India
Balasubramanian, Sengottuvelan
Varghese, Babu
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机构:
Indian Inst Technol, Sophisticated Analyt Instrument Facil, Chennai 600036, Tamil Nadu, IndiaUniv Madras, Sch Chem Sci, Dept Inorgan Chem, Madras 600025, Tamil Nadu, India
机构:
Univ E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, EnglandUniv E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, England
Arbaoui, Abdessamad
Redshaw, Carl
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Univ E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, EnglandUniv E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, England
Redshaw, Carl
Sanchez-Ballester, Noelia M.
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Univ Loughborough, Dept Chem, Loughborough LE11 3TU, Leics, EnglandUniv E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, England
Sanchez-Ballester, Noelia M.
Elsegood, Mark R. J.
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Univ Loughborough, Dept Chem, Loughborough LE11 3TU, Leics, EnglandUniv E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, England
Elsegood, Mark R. J.
Hughes, David L.
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Univ E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, EnglandUniv E Anglia, Sch Chem, Energy Mat Lab, Norwich NR4 7TJ, Norfolk, England