The Fission Yeast UVDR DNA Repair Pathway Is Inducible
Author(s) -
Scott Davey,
Monica Nass,
J. V. Ferrer,
Khalifah Sidik,
Andrew Eisenberger,
David L. Mitchell,
G. A. Frayer
Publication year - 1997
Publication title -
nucleic acids research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 9.008
H-Index - 537
eISSN - 1362-4954
pISSN - 0305-1048
DOI - 10.1093/nar/25.5.1002
Subject(s) - pyrimidine dimer , schizosaccharomyces pombe , nucleotide excision repair , biology , dna repair , schizosaccharomyces , endonuclease , phosphodiester bond , dna , yeast , dna damage , mutant , base excision repair , microbiology and biotechnology , ap endonuclease , gene , genetics , biochemistry , rna
In addition to nucleotide excision repair (NER), the fission yeast Schizosaccharomyces pombe possesses a UV damage endonuclease (UVDE) for the excision of cyclobutane pyrimidine dimers and 6-4 pyrimidine pyrimidones. We have previously described UVDE as part of an alternative excision repair pathway, UVDR, for UV damage repair. The existence of two excision repair processes has long been postulated to exist in S.pombe, as NER-deficient mutants are still proficient in the excision of UV photoproducts. UVDE recognizes the phosphodiester bond immediately 5'of the UV photoproducts as the initiating event in this process. We show here that UVDE activity is inducible at both the level of uve1+ mRNA and UVDE enzyme activity. Further, we show that UVDE activity is regulated by the product of the rad12 gene.
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