Partial characterization of the DNA repair protein complex, containing the ERCC1, ERCC4, ERCC11 and XPF correcting activities

  • A. J. van Vuuren
  • , E. Appeldoorn
  • , H. Odijk
  • , S. Humbert
  • , V. Moncollin
  • , A. P.M. Eker
  • , N. G.J. Jaspers
  • , J. M. Egly
  • , J. H.J. Hoeijmakers

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The nucleotide excision repair (NER) protein ERCC1 is part of a functional complex, which harbors in addition the repair correctig activities of ERCC4, ERCC11 and human XPF. ERCC1 is not associated with a defect in any of the known human NER disorders: xeroderma pigmentosum, Cockayne's syndrome or trichothiodystrophy. Here we report the partial purification and characterization of the ERCC1 complex. Immunoprecipitation studies tentatively identified a subunit in the complex with an apparent MW of ∼ 120 kDa. The complex has affinity for DNA, but no clear preference for ss, ds or UV-damaged DNA substrates. The size of the entire complex determined by non-denaturing gradient gels (∼ 280 kDa) is considerably larger than previously found using size separation on glycerol gradients (∼ 120 kDa). Stable associations of the ERCC1 complex with other known repair factors (XPA, XPC, XPG and TFIIH complex) could not be detected.

Original languageEnglish
Pages (from-to)25-39
Number of pages15
JournalMutation Research-DNA Repair
Volume337
Issue number1
DOIs
Publication statusPublished - Jul 1995
Externally publishedYes

Keywords

  • 120 kDa subunit
  • ERCC1 protein complex
  • Immunoprecipitation
  • Nucleotide excision repair
  • Purification

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