||Genome-wide analysis of effectors of peroxisome biogenesis.
||Ramsey A Saleem, Rose Long-O'Donnell, David J Dilworth, Abraham M Armstrong, Arvind P Jamakhandi, Yakun Wan, Theo A Knijnenburg, Antti Niemistö, John Boyle, Richard A Rachubinski, Ilya Shmulevich, John D Aitchison
||Peroxisomes are intracellular organelles that house a number of diverse metabolic processes, notably those required for beta-oxidation of fatty acids. Peroxisomes biogenesis can be induced by the presence of peroxisome proliferators, including fatty acids, which activate complex cellular programs that underlie the induction process. Here, we used multi-parameter quantitative phenotype analyses of an arrayed mutant collection of yeast cells induced to proliferate peroxisomes, to establish a comprehensive inventory of genes required for peroxisome induction and function. The assays employed include growth in the presence of fatty acids, and confocal imaging and flow cytometry through the induction process. In addition to the classical phenotypes associated with loss of peroxisomal functions, these studies identified 169 genes required for robust signaling, transcription, normal peroxisomal development and morphologies, and transmission of peroxisomes to daughter cells. These gene products are localized throughout the cell, and many have indirect connections to peroxisome function. By integration with extant data sets, we present a total of 211 genes linked to peroxisome biogenesis and highlight the complex networks through which information flows during peroxisome biogenesis and function.
||PLoS ONE 2010; 5:e11953
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