Cited by 34DNA Repair MechanismsFungal and yeast genetics researchNuclear Structure and Function

Alternative Excision Repair Pathway of UV-damaged DNA inSchizosaccharomyces pombe Operates Both in Nucleus and in Mitochondria

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Yasuhira, Shinji, Yasui, Akira·2000·Journal of Biological Chemistry

Abstract

The fission yeast, Schizosaccharomyces pombe, possesses a UV-damaged DNA endonuclease-dependent excision repair (UVER) pathway in addition to nucleotide excision repair pathway for UV-induced DNA damage. We examined cyclobutane pyrimidine dimer removal from the myo2 locus on the nuclear genome and the coI locus on the mitochondrial genome by the two repair pathways. While nucleotide excision repair repairs damage only on the nuclear genome, UVER efficiently removes cyclobutane pyrimidine dimers on both nuclear and mitochondrial genomes. The ectopically expressed wild type UV-damaged DNA endonuclease was localized to both nucleus and mitochondria, while modifications of N-terminal methionine codons restricted its localization to either of two organelles, suggesting an alternative usage of multiple translation initiation sites for targeting the protein to different organelles. By introducing the same mutations into the chromosomal copy of the uvde(+) gene, we selectively inactivated UVER in either the nucleus or the mitochondria. The results of UV survival experiments indicate that although UVER efficiently removes damage on the mitochondrial genome, UVER in the mitochondria hardly contributes to UV resistance of S. pombe cells. We suggest a possible UVER function in mitochondria as a backup system for other UV damage tolerance mechanisms.

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Crossref · 10.1074/jbc.275.16.11824

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  • Following UVB irradiation, UVDE-initiated repair results in rapid, long-patch processes, improving survival in DNA repair-deficient cells.

    “Collectively, these data present consistent evidence that following UVB irradiation, UVDE-initiated repair results in rapid, long-patch processes, improving survival in DNA repair-deficient cells.”

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Research works printed but not linked: 2

  1. Yaffe, M. P., Harata, D., Verde, F., Eddison, M., Toda, T., and Nurse, P. (1996) Proc. Natl. Acad. Sci. U. S. A. 93, 11664 -11668
  2. Donahue, B. A., Yin, S., Taylor, J. S., Reines, D., and Hanawalt, P. C. (1994) Proc. Natl. Acad. Sci. U. S. A. 91, 8502-8506

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Authors
Yasuhira, S., & Yasui, A.
Affiliations
  • Tohoku University (JP)
  • Institute of Development, Aging and Cancer, Tohoku University (JP)
Corresponding author
Yasuhira, Shinji
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2000-04
Volume
275
Issue
16
Pages
11824-11828
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2003502465
Cited by
34
References
42
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2021: 2 · 2020: 1 · 2019: 2 · 2018: 1 · 2014: 2 · 2013: 4 · 2012: 3
FWCI
0.72
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
Keywords
excision repair, nucleotide excision repair, cyclobutane pyrimidine dimers, Schizosaccharomyces pombe, mitochondrial genome, nuclear genome, protein localization, UV resistance, DNA damage tolerance
MeSH terms
Cell Nucleus, Deoxyribonuclease I, DNA Repair, DNA, Fungal, Fungal Proteins, Kinetics, Mitochondria, Schizosaccharomyces, Ultraviolet Rays

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