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Updated: Aug 7, 2026

Live-Cell Imaging of Transcriptional Activity at DNA Double-Strand Breaks
Published on: September 20, 2021
In vivo assays for transcription-coupled repair
Graciela Spivak1, Gerd P Pfeifer, Philip Hanawalt
1Department of Biological Sciences, Stanford University, California, USA.
Abstract:
This chapter describes the technologies used in our respective laboratories to study the incidence and repair of lesions induced in specific DNA sequences by ultraviolet light, chemical carcinogens, and products of cellular metabolism. The Southern blot method is suitable for analysis of damage and repair in the individual DNA strands of specific restriction fragments up to 25,000 nucleotides in length, whereas the ligation-mediated polymerase chain reaction approach permits analysis of shorter sequences at the nucleotide level. Both methods have unique advantages and limitations for particular applications.
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