Nucleotide excision repair in yeast

Research output: Contribution to journalArticle

252 Citations (Scopus)

Abstract

In nucleotide excision repair (NER) in eukaryotes, DNA is incised on both sides of the lesion, resulting in the removal of a fragment ~25-30 nucleotides long. This is followed by repair synthesis and ligation. The proteins encoded by the various yeast NER genes have been purified, and the incision reaction reconstituted in vitro. This reaction requires the damage binding factors Rad14, RPA, and the Rad4-Rad23 complex, the transcription factor TFIIH which contains the two DNA helicases Rad3 and Rad25, essential for creating a bubble structure, and the two endonucleases, the Rad1-Rad10 complex and Rad2, which incise the damaged DNA strand on the 5'- and 3'-side of the lesion, respectively. Addition of the Rad7-Rad16 complex to this reconstituted system stimulates the incision reaction many fold. The various NER proteins exist in vivo as part of multiprotein subassemblies which have been named NEFs (nucleotide excision repair factors). Rad14 and Rad1-Rad10 form one subassembly called NEF1, the Rad4-Rad23 complex is named NEF2, Rad2 and TFIIH constitute NEF3, and the Rad7-Rad16 complex is called NEF4. Although much has been learned from yeast about the function of NER genes and proteins in eukaryotes, the underlying mechanisms by which damage is recognized, NEFs are assembled at the damage site, and the DNA is unwound and incised, remain to be elucidated. Copyright (C) 2000 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)13-24
Number of pages12
JournalMutation Research - Fundamental and Molecular Mechanisms of Mutagenesis
Volume451
Issue number1-2
DOIs
StatePublished - Jun 30 2000

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DNA Repair
Yeasts
Eukaryota
Transcription Factor TFIIH
DNA Helicases
Proteins
Endonucleases
DNA
DNA Damage
Ligation
Nucleotides
Genes

Keywords

  • Nucleotide excision repair
  • Transcription factor
  • Yeast

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Molecular Biology

Cite this

Nucleotide excision repair in yeast. / Prakash, Satya; Prakash, Louise.

In: Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, Vol. 451, No. 1-2, 30.06.2000, p. 13-24.

Research output: Contribution to journalArticle

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