In this paper, the interaction of the antibacterial peptide MDL-1 of Musca domestica L and E. coli DNA was investigated by fluorescence spectra. The interaction mode was studied by using ethidium bromide (EB) as an extrinsic fluorescence probe. The result of fluorescence spectra and Scatchard plot indicate that the binding constant and the number of binding sites between DNA and EB decrease with increasing concentration of MDL-1. The change in binding constant and binding sites showed that the confor...
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