Distribution of Regulatory Elements in Yeast Promoters
Author Information
Author(s): Lin Zhenguo, Wu Wei-Sheng, Liang Han, Woo Yong, Li Wen-Hsiung
Primary Institution: University of Chicago
Hypothesis
The spatial distribution of transcription factor binding sites (TFBSs) in yeast promoters is more accurately inferred using the transcription start site (TSS) as a reference point rather than the translation start codon.
Conclusion
The study found that TFBSs are highly enriched in a narrow region approximately 115 bp upstream of the TSS, indicating that the distance between TFBSs and the TSS is functionally constrained.
Supporting Evidence
- TFBSs are highly enriched from ~80 to 200 bp upstream of the TSS.
- The frequency of deletion polymorphisms decreases as the distance to the TSS decreases.
- Nucleosome occupancy negatively correlates with TFBS density.
Takeaway
This study looked at where certain proteins bind in yeast DNA and found that they like to stick close to the start of genes, which helps control how genes work.
Methodology
The study analyzed TFBS distribution using high-resolution TSS data and compared it to previous methods that used the translation start codon.
Participant Demographics
Yeast strains from diverse ecological niches and geographic locations.
Statistical Information
P-Value
<10-15
Statistical Significance
p<10-15
Digital Object Identifier (DOI)
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