Drosophila S3 ribosomal protein accelerates repair of 8-oxoguanine performed by human and mouse cell extracts

Enrico Cappelli, Andrea D'Osualdo, Massimo Bogliolo, Mark Kelley, Guido Frosina

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The S3 ribosomal protein of Drosophila melanogaster possesses various DNA repair activities, including the capacity to incise at apurinic/apyrimidinic (AP) sites and 8-oxo-7,8-dihydroguanine (8-oxoG) residues. We have recently hypothesized that this multifunctional protein may improve the efficiency of DNA base excision repair (BER) in mammalian cells. We have investigated the effect of pure GST-tagged Drosophila S3 on BER of different endogenous lesions performed by human and mouse cell extracts. Drosophila S3 significantly accelerated the BER of 8-oxoG (initiated by the bifunctional glycosylase OGG1). The stimulating effect was linked to the capacity of S3 to remove the 8-oxoG lesion and cleave the resulting AP site, rather than acceleration of downstream steps of the BER pathway (e.g., removal of 3′ blocking fragments). No stimulating effect was observed on the BER of uracil, natural AP sites, and β-lyase-cleaved AP sites. Heterologous expression of Drosophila S3 may be used to enhance 8-oxoG repair in human cells.

Original languageEnglish
Pages (from-to)50-58
Number of pages9
JournalEnvironmental and Molecular Mutagenesis
Volume42
Issue number1
DOIs
StatePublished - 2003

Fingerprint

Cell Extracts
DNA Repair
repair
Drosophila
Repair
protein
lesion
Drosophila Proteins
Cells
Lyases
Uracil
DNA
ribosomal protein S3
8-hydroxyguanine
Proteins
effect

Keywords

  • 8-oxoguonine
  • Apurinic sites
  • DNA bose excision repair
  • Drosophilo S3 protein

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Genetics
  • Genetics(clinical)
  • Toxicology
  • Health, Toxicology and Mutagenesis

Cite this

Drosophila S3 ribosomal protein accelerates repair of 8-oxoguanine performed by human and mouse cell extracts. / Cappelli, Enrico; D'Osualdo, Andrea; Bogliolo, Massimo; Kelley, Mark; Frosina, Guido.

In: Environmental and Molecular Mutagenesis, Vol. 42, No. 1, 2003, p. 50-58.

Research output: Contribution to journalArticle

Cappelli, Enrico ; D'Osualdo, Andrea ; Bogliolo, Massimo ; Kelley, Mark ; Frosina, Guido. / Drosophila S3 ribosomal protein accelerates repair of 8-oxoguanine performed by human and mouse cell extracts. In: Environmental and Molecular Mutagenesis. 2003 ; Vol. 42, No. 1. pp. 50-58.
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