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  • Title: The action of structural analogues of ethidium bromide on the mitochondrial genome of yeast.
    Author: Hall RM, Mattick JS, Nagley P, Cobon GS, Eastwood FW, Linnane AW.
    Journal: Mol Biol Rep; 1977 Dec; 3(6):443-9. PubMed ID: 339057.
    Abstract:
    We have studied the effects on the yeast mitochondrial genome of four analogues of ethidium bromide, in which the phenyl moieyt has been replaced by linear alkyl chains of lengths varying from seven to fifteen carbon atoms. These analogues are more efficient than ethidium bromide in inducing petite mutants in Saccharomyces cervisiae. The drugs also cause a loss of mtDNA from the cells in vivo; however these analogues are in fact less effective inhibitors of mitochondrial DNA replication per se, as shown by direct in vitro studies. It is concluded that these analogues are more efficient than ethidium bromide in causing the fragmentation of mitochondrial DNA in S. cervisiae.
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