Antisense transcripts enhanced by camptothecin at divergent CpG-island promoters associated with bursts of topoisomerase I-DNA cleavage complex and R-loop formation
DNA Topoisomerase I (Top1) is required to relax DNA supercoils generated by RNA polymerases (RNAPs). Top1 is inhibited with high specificity by camptothecin (CPT), an effective anticancer agent, and by oxidative base damage and ribonucleotides in DNA strands, resulting into Top1-DNA cleavage complex...
| Main Authors: | , , , , |
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| Format: | Online |
| Language: | English |
| Published: |
Oxford University Press
2013
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3905886/ |