XPA: A key scaffold for human nucleotide excision repair
نویسندگان
چکیده
منابع مشابه
Structural basis for the recruitment of ERCC1-XPF to nucleotide excision repair complexes by XPA.
The nucleotide excision repair (NER) pathway corrects DNA damage caused by sunlight, environmental mutagens and certain antitumor agents. This multistep DNA repair reaction operates by the sequential assembly of protein factors at sites of DNA damage. The efficient recognition of DNA damage and its repair are orchestrated by specific protein-protein and protein-DNA interactions within NER compl...
متن کاملAn interaction between the DNA repair factor XPA and replication protein A appears essential for nucleotide excision repair.
Replication protein A (RPA) is required for simian virus 40-directed DNA replication in vitro and for nucleotide excision repair (NER). Here we report that RPA and the human repair protein XPA specifically interact both in vitro and in vivo. Mapping of the RPA-interactive domains in XPA revealed that both of the largest subunits of RPA, RPA-70 and RPA-34, interact with XPA at distinct sites. A ...
متن کاملNucleotide excision repair and human syndromes.
DNA damage is implicated in cancer and aging, and several DNA repair mechanisms exist that safeguard the genome from these deleterious consequences. Nucleotide excision repair (NER) removes a wide diversity of lesions, the main of which include UV-induced lesions, bulky chemical adducts and some forms of oxidative damage. The NER process involves the action of at least 30 proteins in a 'cut-and...
متن کاملRegulation of nucleotide excision repair activity by transcriptional and post-transcriptional control of the XPA protein
The XPA (Xeroderma pigmentosum A) protein is one of the six core factors of the human nucleotide excision repair system. In this study we show that XPA is a rate-limiting factor in all human cell lines tested, including a normal human fibroblast cell line. The level of XPA is controlled at the transcriptional level by the molecular circadian clock and at the post-translational level by a HECT d...
متن کاملSuppression of UV carcinogenesis by difluoromethylornithine in nucleotide excision repair-deficient Xpa knockout mice.
Xeroderma pigmentosum (XP) patients are deficient in nucleotide excision repair (NER) because of mutations in one of the genes coding for NER enzymes. This results predominantly in high frequency of UV-induced skin tumors at an early age; the most severe phenotype is found in patients of complementation group A (XPA). However, in a subset of these XPA patients no skin tumors appear, even at adv...
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ژورنال
عنوان ژورنال: DNA Repair
سال: 2016
ISSN: 1568-7864
DOI: 10.1016/j.dnarep.2016.05.018