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Publication Detail

Title: A UV-induced genetic network links the RSC complex to nucleotide excision repair and shows dose-dependent rewiring.

Authors: Srivas, Rohith; Costelloe, Thomas; Carvunis, Anne-Ruxandra; Sarkar, Sovan; Malta, Erik; Sun, Su Ming; Pool, Marijke; Licon, Katherine; van Welsem, Tibor; van Leeuwen, Fred; McHugh, Peter J; van Attikum, Haico; Ideker, Trey

Published In Cell Rep, (2013 Dec 26)

Abstract: Efficient repair of UV-induced DNA damage requires the precise coordination of nucleotide excision repair (NER) with numerous other biological processes. To map this crosstalk, we generated a differential genetic interaction map centered on quantitative growth measurements of >45,000 double mutants before and after different doses of UV radiation. Integration of genetic data with physical interaction networks identified a global map of 89 UV-induced functional interactions among 62 protein complexes, including a number of links between the RSC complex and several NER factors. We show that RSC is recruited to both silenced and transcribed loci following UV damage where it facilitates efficient repair by promoting nucleosome remodeling. Finally, a comparison of the response to high versus low levels of UV shows that the degree of genetic rewiring correlates with dose of UV and reveals a network of dose-specific interactions. This study makes available a large resource of UV-induced interactions, and it illustrates a methodology for identifying dose-dependent interactions based on quantitative shifts in genetic networks.

PubMed ID: 24360959 Exiting the NIEHS site

MeSH Terms: Chromatin Assembly and Disassembly*; DNA Repair*; Dose-Response Relationship, Radiation; Gene Regulatory Networks/radiation effects*; Genome, Fungal; Saccharomyces cerevisiae Proteins/genetics; Saccharomyces cerevisiae Proteins/metabolism; Saccharomyces cerevisiae/genetics*; Saccharomyces cerevisiae/metabolism; Saccharomyces cerevisiae/radiation effects; Ultraviolet Rays*

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