Thymineless death and genetic events in mammalian cells.


Thymidylate synthase-negative mutants of cultured mouse FM3A cells were immediately committed to cell death upon thymidine deprivation especially when the cells were synchronized in the S-phase. Thymidine deprivation induced single strand breaks in parental DNA strands, as measured by alkaline sucrose gradient sedimentation, giving rise to two peaks, one… (More)


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