Target intelligence / Profile preview

Transcription-Coupled Nucleotide Excision Repair Pathway (TC-NER)

Target
TC-NER
Molecular classification
DNA Repair Pathway, Cellular Pathway
01

Overview

Transcription-coupled nucleotide excision repair (TC-NER) is a specialized subpathway of nucleotide excision repair (NER) that specifically targets and rapidly repairs DNA lesions blocking RNA polymerase II progression during transcription on the transcribed strand of active genes. This pathway ensures gene expression resumes quickly after damage, maintaining cellular function and viability.

Other names
Transcription-Coupled RepairTCRRNA polymerase II-directed DNA repair
02

Biological functions

DNA repairTranscription fidelityGenome maintenanceResponse to DNA damageRegulation of gene expression
03

Disease associations

Cockayne SyndromeCancerAgingUV sensitivity
04

Safety considerations

Defects in TC-NER lead to genetic disorders and increased cancer risk.Over-activation can lead to hyper-repair and genomic instability.

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