What question did this study set out to answer?

The aim is to understand how the activity of XPG endonuclease is regulated during nucleotide excision repair.

Controlling scissors during DNA repair of UV light–induced damage

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Randomized trial uncovers control mechanisms of DNA cutting by XPG endonuclease during repair, suggesting implications for genomic integrity.

The aim is to understand how the activity of XPG endonuclease is regulated during nucleotide excision repair.
Used live-cell imaging to observe DNA repair processes.
Analyzed the role of XPG endonuclease in DNA damage removal due to UV light exposure.
Identified specific regulatory mechanisms controlling XPG activity during DNA repair.
Found that improper regulation leads to increased risks of erroneous DNA cleavage.

Opresko et al. (2026) studied this question.

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Randomized trial uncovers control mechanisms of DNA cutting by XPG endonuclease during repair, suggesting implications for genomic integrity.