A DNA microarray-based genetic screen for nonhomologous end-joining mutants in Saccharomyces cerevisiae.
We describe a microarray-based screen performed by imposing different genetic selections on thousands of yeast mutants in parallel, representing most genes in the yeast genome. The presence or absence of mutants was detected by oligonucleotide arrays that hybridize to 20-nucleotide "barcodes." We used this method to screen for components of ... the nonhomologous end-joining (NHEJ) pathway. Known components of the pathway were identified, as well as a gene not previously known to be involved in NHEJ, NEJ1. Nej1 protein interacts with the amino terminus of LIF1/XRCC4, a recently recognized "guardian of the genome" against cancer.
Mesh Terms:
CCAAT-Binding Factor, DNA Ligases, DNA Repair, DNA-Binding Proteins, Fungal Proteins, Genes, Fungal, Genetic Complementation Test, Mutation, Nucleic Acid Hybridization, Oligonucleotide Array Sequence Analysis, Plasmids, Recombination, Genetic, Saccharomyces cerevisiae, Saccharomyces cerevisiae Proteins, Transcription Factors, Transformation, Genetic, Two-Hybrid System Techniques
CCAAT-Binding Factor, DNA Ligases, DNA Repair, DNA-Binding Proteins, Fungal Proteins, Genes, Fungal, Genetic Complementation Test, Mutation, Nucleic Acid Hybridization, Oligonucleotide Array Sequence Analysis, Plasmids, Recombination, Genetic, Saccharomyces cerevisiae, Saccharomyces cerevisiae Proteins, Transcription Factors, Transformation, Genetic, Two-Hybrid System Techniques
Science
Date: Dec. 21, 2001
PubMed ID: 11701889
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