Reference: Tallec BL and Peyroche A (2012) Using DNA damage sensitivity phenotypes to characterize mutations affecting proteasome function. Methods Mol Biol 832:363-71

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Abstract


Most mutants affected either in the proteasome biogenesis or function accumulate polyubiquitylated proteins and display growth defects at 37 degrees C or in the presence of canavanine, an arginine analog that impairs protein synthesis. We uncovered a new striking phenotype related to DNA damage for some proteasome mutants: mutant strains grew better than the wild type in the presence of specific genotoxic agents (4NQO, Cpt, and MMS). Hyperresistance to 4NQO or Cpt is a new sensitive tool to detect proteasomal defects. Here, we describe simple methods that can be used to show and quantitatively measure this phenotype in budding yeast.

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Journal Article
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Tallec BL, Peyroche A
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