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Improved statistical analysis of budding yeast TAG microarrays revealed by defined spike-in pools.


ABSTRACT: Saccharomyces cerevisiae knockout collection TAG microarrays are an emergent platform for rapid, genome-wide functional characterization of yeast genes. TAG arrays report abundance of unique oligonucleotide 'TAG' sequences incorporated into each deletion mutation of the yeast knockout collection, allowing measurement of relative strain representation across experimental conditions for all knockout mutants simultaneously. One application of TAG arrays is to perform genome-wide synthetic lethality screens, known as synthetic lethality analyzed by microarray (SLAM). We designed a fully defined spike-in pool to resemble typical SLAM experiments and performed TAG microarray hybridizations. We describe a method for analyzing two-color array data to efficiently measure the differential knockout strain representation across two experimental conditions, and use the spike-in pool to show that the sensitivity and specificity of this method exceed typical current approaches.

SUBMITTER: Peyser BD 

PROVIDER: S-EPMC1216341 | biostudies-literature | 2005 Sep

REPOSITORIES: biostudies-literature

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Improved statistical analysis of budding yeast TAG microarrays revealed by defined spike-in pools.

Peyser Brian D BD   Irizarry Rafael A RA   Tiffany Carol W CW   Chen Ou O   Yuan Daniel S DS   Boeke Jef D JD   Spencer Forrest A FA  

Nucleic acids research 20050915 16


Saccharomyces cerevisiae knockout collection TAG microarrays are an emergent platform for rapid, genome-wide functional characterization of yeast genes. TAG arrays report abundance of unique oligonucleotide 'TAG' sequences incorporated into each deletion mutation of the yeast knockout collection, allowing measurement of relative strain representation across experimental conditions for all knockout mutants simultaneously. One application of TAG arrays is to perform genome-wide synthetic lethality  ...[more]

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