Reference: Ferguson LR, et al. (1988) 'Petite' mutagenesis in Saccharomyces cerevisiae by a series of 2,7-di-alkyl-substituted derivatives of proflavine with differing DNA-binding properties. Mutat Res 201(1):213-8

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Abstract


The ability of proflavine (3,6-diaminoacridine) and its 2,7-dimethyl, 2,7-diethyl, 2,7-diisopropyl and 2,7-di-tert.-butyl derivatives to induce the 'petite' mutation in Saccharomyces cerevisiae has been studied in relation to the DNA-binding properties of the compounds. The nature of the binding has been investigated by nuclear magnetic resonance techniques, and the results support and clarify earlier suggestions that the first 3 members of the series intercalate into DNA while the diisopropyl and di-tert.-butyl compounds do not. Toxicity of the drugs was primarily associated with their mode of DNA binding, but lipophilicity had an important secondary effect. It seems likely that the toxic properties of the more lipophilic DNA-intercalating members of the series mask their potential for 'petite' mutagenesis.

Reference Type
Comparative Study | Journal Article | Research Support, Non-U.S. Gov't
Authors
Ferguson LR, Denny WA, Feigon J
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