title: The Caenorhabditis elegans XPA homolog of human XPA.
abstract: The Xeroderma pigmentosum complementation group A (XPA) protein that is indispensable for nucleotide excision repair of DNA damage in eukaryotes participates in photoproduct recognition. A search of the current Caenorhabditis elegans database allowed us to identify a good candidate for the XPA protein homolog. We cloned a complete cDNA of C. elegans XPA (Ce-XPA) by using RT-PCR. Northern blot analysis showed that the Ce-xpa gene is expressed in all of the stages, including embryos. Ce-XPA encodes a 241-amino acid protein that is homologous to all known eukaryotic XPA. Ce-XPA RNAi caused embryonic lethality and survival lethality to UV radiation. This result suggests that Ce-XPA is involved in the repair of UV-damaged DNA in C. elegans.
authors.affiliation: Department of Microbiology and Genetic Engineering, College of Natural Sciences, University of Ulsan, Korea.
authors.forename: Hye Kyung
authors.initials: HK
authors.lastname: Park
authors.forename: Jong-Sung
authors.initials: JS
authors.lastname: Yook
authors.forename: Hyeon-Sook
authors.initials: HS
authors.lastname: Koo
authors.forename: In Soon
authors.initials: IS
authors.lastname: Choi
authors.forename: Byungchan
authors.initials: B
authors.lastname: Ahn
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015152:Blotting, Northern; D017173:Caenorhabditis elegans / Q000235:genetics*; D029742:Caenorhabditis elegans Proteins / Q000235:genetics*; D004260:DNA Repair; D004268:DNA-Binding Proteins / Q000235:genetics*; D006801:Humans; D008969:Molecular Sequence Data; D034622:RNA Interference / Q000528:radiation effects; D014466:Ultraviolet Rays; D051760:Xeroderma Pigmentosum Group A Protein
chemical_list: D029742:Caenorhabditis elegans Proteins; D004268:DNA-Binding Proteins; C497314:XPA protein, human; D051760:Xeroderma Pigmentosum Group A Protein