Evolutionary conservation of excision repair in Schizosaccharomyces pombe: Evidence for a family of sequences related to the Saccharomyces cerevisiae RAD2 gene

Carr, Antony M, Sheldrick, Katherine S, Murray, Johanne M, Al-Harithy, Rowyda, Watts, Felicity Z and Lehmann, Alan R (1993) Evolutionary conservation of excision repair in Schizosaccharomyces pombe: Evidence for a family of sequences related to the Saccharomyces cerevisiae RAD2 gene. Nucleic Acids Research, 21 (6). pp. 1345-1349. ISSN 0305-1048

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Abstract

Cells mutated at the rad13 locus in the fission yeast, Schizosaccharomyces pombe are deficient in excision-repair of UV damage. We have cloned the S.pombe rad13 gene by its ability to complement the UV sensitivity of a rad13 mutant. The gene is not essential for cell proliferation. Sequence analysis of the cloned gene revealed an open reading-frame of 1113 amino acids with structural homology to the RAD2 gene of the distantly related Saccharomyces cerevisiae. The sequence similarity is confined to three domains, two close to the N-terminus of the encoded protein, the third being close to the C-terminus. The central region of about 500 amino acids shows little similarity between the two organisms. The first and third domains are also found in a related yet distinct pair of homologous S.pombe/S.cerevisiae DNA repair genes (rad2/YKL510), which have only a very short region between these two conserved domains. Using the polymerase chain reaction with degenerate primers, we have isolated fragments from a gene homologous to rad13/RAD2 from Aspergillus nidulans. These findings define new functional domains involved in excision-repair, as well as identifying a conserved family of genes related to RAD2.

Item Type: Article
Schools and Departments: School of Life Sciences > Sussex Centre for Genome Damage and Stability
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Depositing User: Antony Carr
Date Deposited: 06 Feb 2012 20:09
Last Modified: 07 Mar 2017 06:53
URI: http://sro.sussex.ac.uk/id/eprint/24342

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