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The Relationship between Yeast Coexpressed Gene Clusters and Their Upstream cis-acting Elements
Tao Xie1, Quan-Hu Sheng, Da-Fu Ding
1Shanghai Institute of Biochemistry, the Chinese Academy of Sciences, Shanghai 200031, China. dingdafu@server.shcnc.ac.cn
Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao Acta Biochimica Et Biophysica Sinica
|July 12, 2002
Summary
DNA microarrays reveal gene expression patterns in budding yeast. Genes with similar expression share common cis-acting elements, potentially uncovering new regulatory elements and aiding in understanding gene function.
Area of Science:
- Genomics
- Molecular Biology
- Bioinformatics
Background:
- DNA microarrays offer a genomic-scale approach to studying gene function through expression patterns.
- Budding yeast (Saccharomyces cerevisiae) provides a model system with a fully sequenced genome and available expression data.
Purpose of the Study:
- To investigate the relationship between gene 5' upstream cis-acting elements and gene expression patterns.
- To identify potential regulatory elements and transfactors influencing gene expression in yeast.
Main Methods:
- Utilized bioinformatic tools to analyze gene expression data from budding yeast.
- Examined the correlation between cis-acting elements and clustered gene expression patterns.
Main Results:
- Identified common cis-acting element candidates shared among genes within the same expression clusters.
- Found that these clusters of genes can be regulated by the same transfactors.
- Discovered potential novel cis-acting elements alongside known ones, suitable for experimental validation.
Conclusions:
- Gene expression patterns are linked to specific cis-acting elements in budding yeast.
- This approach aids in understanding gene function, metabolic pathways, and genetic networks.
- The findings provide a basis for further experimental investigation into gene regulation.