BINDING OF THE ANTITUMOR DRUG ADRIAMYCIN TO DNA-HISTONE COMPLEXES

نویسندگان

  • AZRA RABBANI From the Institute of Biochemistry and Biophysics, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
  • BAHRAM GOLIAEI
  • MARZIEH HAGSHARIFIA TAGAVI
چکیده مقاله:

Isotherms of the binding of the anthracycIine antibiotic, adriamycin (adriblastin), to DNA histone complexes was studied by means of spectroscopic analysis. The results indicated that: (a) binding of adriamycin to histones reduced the interaction of histones with DNA, (b) binding of the drug to DNA did not change the binding affinity of histone to DNA and, (c) in the explored binding range of r<O.1 the binding of adriamycin to DNA-histone complex proved to be anticooperative with n values of 0.32 for the interaction of histone with DNA-drug and 0.26 for the binding of DNA to histone-drug complex. The results suggest the possible participation of his tones in the DNA-drug complex formation.

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عنوان ژورنال

دوره 6  شماره 4

صفحات  275- 279

تاریخ انتشار 1993-02

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