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Chapters
- 00:04Introduction
- 01:27S1 Fiber Experimental Setup
- 03:51DNA Fiber Preparation by Spreading
- 04:58Immunostaining of DNA Fibers
- 06:45Image Acquisition and Analysis
- 08:39Results: Post-Replicative ssDNA Gaps on Ongoing Forks by S1 Fiber Assay and Post-Replicative Repair by Gap Filling
- 09:42Conclusion
Here we describe two modifications of the DNA fiber assay to investigate single-stranded DNA gaps in replicating DNA after lesion induction. The S1 fiber assay enables the detection of post-replicative gaps using the ssDNA-specific S1 endonuclease, while the gap-filling assay allows visualization and quantification of gap repair.
