Comparative Analysis of Gene Regulatory Networks in E. coli and S. cerevisiae
Author Information
Author(s): Guzmán-Vargas Lev, Santillán Moisés
Primary Institution: Instituto Politécnico Nacional
Hypothesis
The differences in transcription-factor gene regulatory networks between E. coli and S. cerevisiae can be attributed to their different ratios of transcription factors to regulated genes.
Conclusion
E. coli and S. cerevisiae have similar connectivity patterns in their gene regulatory networks, but their ratios of transcription factors to regulated genes differ significantly.
Supporting Evidence
- The ratio of transcription factor to regulated gene number is about 0.116 in E. coli, and about 0.036 in S. cerevisiae.
- The connectivity distributions of the E. coli and S. cerevisiae RG-projected networks are very different.
- The original and randomized RG projections have very similar properties for both studied organisms.
Takeaway
This study looks at how two different organisms, E. coli and yeast, control their genes. Even though they do it in similar ways, they have different numbers of control genes.
Methodology
The study involved measuring various network properties of the bipartite networks of E. coli and S. cerevisiae, including clustering coefficients and communication efficiency, and comparing them with randomized networks.
Digital Object Identifier (DOI)
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