کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5372240 1388869 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the origin of the decrease in stability of the DNA hairpin d(GCGAAGC) on complexation with aromatic drugs
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
On the origin of the decrease in stability of the DNA hairpin d(GCGAAGC) on complexation with aromatic drugs
چکیده انگلیسی

Molecular dynamics simulations of drug-DNA complexes have been carried out in order to explain the experimentally observed decrease in thermal stability of the DNA hairpin d(GCGAAGC) on binding the aromatic drug molecules, daunomycin, ethidium bromide, novantrone and proflavine. This complexation behavior is in contrast to the stabilizing effect of the same aromatic drug molecules on DNA duplexes. Analysis of the energy parameters and the hydration properties of the complexes shows that the main factor correlating with the decrease in melting temperatures of the drug-hairpin complexes is the number of water bridges, with a reduction of at least 40% on ligand binding.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biophysical Chemistry - Volume 129, Issue 1, August 2007, Pages 56-59
نویسندگان
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