Abstract

Netropsin binds tightly to AT rich regions of DNA and correspondingly is an efficient inhibitor of mitochondrial DNA replication in Saccharomyces cerevisiae . Netropsin treatment does not cause formation of large populations of petite cells. However, a large portion of cells grown in cultures with ethanol as carbon source are killed by 1 μg/ml netropsin. When petite induction by berenil or ethidium bromide is carried out in the presence of netropsin, the petite cells are killed. This appears to be an effect of netropsin action on the cells during the process of petite formation.

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