The N-degron protein degradation strategy for investigating the function of essential genes: requirement for replication protein A and proliferating cell nuclear antigen proteins for nucleotide excision repair in yeast extracts

Wenya Huang, William J. Feaver, Alan E. Tomkinson, Errol C. Friedberg

Research output: Contribution to journalArticle

11 Scopus citations


Nucleotide excision repair (NER) of DNA in the yeast Saccharomyces cerevisiae and in human cells has been shown to be a biochemically complex process involving multiple gene products. In yeast, the involvement of the DNA replication accessory proteins, replication protein A (RPA1) and proliferating cell nuclear antigen (PCNA) in NER has not been demonstrated genetically. In this study we have generated temperature-degradable rfa1 and pcna mutants and show that these mutants are defective in NER in vitro under conditions that promote degradation of the RFA1 and PCNA gene products. We also demonstrate a physical interaction between RPA1 protein and subunits of the RNA polymerase II basal transcription factor IIH (TFIIH). Copyright (C) 1998 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)183-194
Number of pages12
JournalMutation Research - DNA Repair
Issue number3
StatePublished - Sep 11 1998



  • N-degron
  • Nucleotide excision repair (NER)
  • Proliferating cell nuclear antigen (PCNA)
  • Repairosome
  • Replication protein A (RPA)
  • Saccharomyces cerevisiae

ASJC Scopus subject areas

  • Molecular Biology
  • Toxicology
  • Genetics

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