Differences in the cleavage of DNA by bleomycin under light (300-350 nm) and dark conditions

Kenneth T. Douglas*, N. Thakrar, Steven J. Minter, R. Wayne Davies, Claude Scazzochio

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

Abstract

Incubation of supercoiled plasmid DNA (both pBR 322 and pPLC-28) with increasing concentrations of bleomycin in the presence and absence of light (300-350 nm) showed extensive conversion of supercoiled to linear DNA which occurred at much lower levels of bleomycin (BLM) in the light than in the dark. Preliminary results indicate that superoxide dismutase (SOD) may offer DNA more protection against bleomycin in the dark than in the light conditions.

Original languageEnglish
Pages (from-to)339-345
Number of pages7
JournalCancer Letters
Volume16
Issue number3
DOIs
Publication statusPublished - Sept 1982

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