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  • Title: The binding of 9-aminoacridine to calf thymus DNA in aqueous solution. Electronic spectral studies.
    Author: Fornasiero D, Kurucsev T.
    Journal: Biophys Chem; 1985 Nov; 23(1-2):31-7. PubMed ID: 4092080.
    Abstract:
    Absorption, circular dichroism and steady-state fluorescence spectra were determined of 9-aminoacridine solutions in the presence of DNA at an ionic strength of 0.001 mol dm-3. Up to a dye/DNA phosphorus ratio of about 0.2 the results are fully consistent with the requirements and predictions of a binding model already shown to apply to the binding of other aminoacridines to DNA. The apparently anomalous spectroscopic behaviour of the 9-aminoacridine/DNA system compared with proflavine/DNA, for example, can be satisfactorily explained from a consideration of the magnitudes of exciton interactions between dyes bound to DNA.
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