Chloramphenicol-induced loss of mitochondrial DNA polymerase activity in HeLa cells.

Abstract:

HeLa cells exposed to chloramphenicol for approximately one cell generation were found to contain a mitochondria-associated DNA polymerase with a significantly lower specific activity than that of control cells. This observation was not due to the presence of inhibitors in mitochondrial DNA polymerase preparations of chloramphenicol-treated cell cultures. In addition, there was no accumulation of a typical mitochondrial DNA polymerase in the post-mitochondrial supernatant of drug-treated cells.

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