Reference - PMID:8614629 - Characterization of a UV endonuclease gene from the fission yeast Schizosaccharomyces pombe and its bacterial homolog.
Reference summary
- PubMed ID
- PMID:8614629
- Title
- Characterization of a UV endonuclease gene from the fission yeast Schizosaccharomyces pombe and its bacterial homolog.
- Authors
- Takao M, Yonemasu R, Yamamoto K, Yasui A
- Citation
- Nucleic Acids Res 1996 Apr 01;24(7):1267-71
- Publication year
- 1996
- Abstract
- From the fission yeast Schizosaccharomyces pombe, a cDNA fragment was isolated, which confers UV resistance on repair deficient Escherichia coli host cells. The cloned cDNA encodes a protein of 68,815 Da, which has a 36.6% identity of amino acid sequence with the previously identified 74 kDa UV endonuclease of the filamentous fungus Neurospora crassa. Analysis of several truncated gene constructs shows that only the C-terminal two thirds region, which has 54% identity of amino acid sequence with the C-terminal region of the Neurospora homolog, is necessary for complementing activity of UV-sensitivity in the E. coli host cells. Purified recombinant protein from E. coli host cells incises both UV-induced cyclobutane pyrimidine dimers and (6-4) photoproducts at the sites immediately 5' to the DNA damage in the same fashion as the Neurospora protein. Furthermore, a bacterial homologous sequence was isolated from Bacillus subtilis and shows a similar complementing activity of UV sensitivity in E. coli host cells, indicating a wide distribution of this alternative excision repair mechanism in life.
