A clarification of the complex spectrum observed with the ultraviolet circular dichroism of ethidium bromide bound to DNA

Abstract
Ethidium bromide intercalation strongly affects the circular dichroism spectrum of DNA in the region of 230-300 mμ, in a complex manner. In this report we present a study that quantitizes the relationships of the circular dichroism spectrum in the region of 230-300 mμ and the ethidium bromide induced optical activity centered around 308 mμ.