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While the role of reduced DNA repair in susceptibility to hereditary cancers is well established, its role in sporadic cancer is less understood. One of the reasons is the lack of specific DNA repair assays that are suitable for epidemiology studies. Here we describe the development of the OGG test, an epidemiology-grade enzymatic assay for the activity of the base excision repair enzyme 8-oxoguanine...
The blockage of transcription elongation by RNA polymerase II (RNAPII) at DNA lesions on the transcribed strand is a serious challenge to accurate transcription. Transcription-coupled DNA repair (TCR), which is assumed to be initiated by the blockage of transcription, rapidly removes lesions on the transcribed strand of expressed genes and allows the resumption of transcription. Although helix-distorting...
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