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Påvisning af postreplikation af huller akkumulering og reparation i humane celler ved hjælp af DNA-fiberassayet
JoVE Journal
Genetics
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JoVE Journal Genetics
Detection of Post-Replicative Gaps Accumulation and Repair in Human Cells Using the DNA Fiber Assay
DOI:

10:32 min

February 03, 2022

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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

Summary

Automatic Translation

Her beskriver vi to modifikationer af DNA-fiberassayet for at undersøge enkeltstrengede DNA-huller i replikerende DNA efter induktion af læsioner. S1-fiberassayet muliggør detektion af postreplikative huller ved hjælp af den ssDNA-specifikke S1-endonuklease, mens gap-filling-analysen muliggør visualisering og kvantificering af gap-reparation.

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