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KMID : 1059519900340060539
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Journal of the Korean Chemical Society
1990 Volume.34 No. 6 p.539 ~ p.547
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The Electronic Structure of Interaction Platinum(Ⅱ) with DNA bases, Adenine, Guanine, and Cytosine
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Kim Ui-Rak
Kim Sang-Hae
Boudreaux Edward A.
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Abstract
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Molecular Orbital calculations using the SC-MEH method have been carried out for the interaction of Adenine, Guanine and Cytosine as DNA base and diaminecytosineplatinum(DCP) in various conformations. The results showed that the order of DCP binding to the DNA bases was guanine > adenine > cytosine and the stabilization energy of cis-isomer was larger than that of trans-isomer in the adenine-DCP complexes system. Furthermore, platinum(II) binding to DNA bases markedly gives rise to change of atomic charge in DNA bases ring, which can explain anti-tumor activity of platinum complex.
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KEYWORD
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