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Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
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Identifying vital nodes for yeast network by dynamic network entropy.

Jingchen Liu1,2,3, Yan Wang4, Jiali Men5

  • 1School of Mathematics and Statistics, Hainan University, Haikou, 570228, Hainan, People's Republic of China.

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Summary

Identifying key regulators in yeast cell cycle progression is crucial. This study proposes a novel algorithm to pinpoint sensitive genes, finding CDH1 as the most critical regulatory factor for controlling the cell cycle.

Keywords:
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Area of Science:

  • Molecular Biology
  • Systems Biology
  • Genetics

Background:

  • Yeast cell cycle progression relies on complex gene and protein interactions.
  • Identifying critical regulatory nodes within these networks remains a challenge.
  • Understanding these dynamics is key to deciphering cellular control mechanisms.

Purpose of the Study:

  • To elucidate sensitive nodes and genes in yeast cell cycle progression.
  • To develop and apply a novel algorithm for identifying vital regulatory factors.
  • To investigate the role of specific genes in yeast cell cycle dynamics.

Main Methods:

  • Utilized a mixed K2 algorithm for time series segmentation and network refinement.
  • Employed network entropy for screening the gene regulatory network.
  • Simulated gene expression data using normal distribution approximation and partial least squares.

Main Results:

  • The proposed algorithm effectively identified sensitive nodes and genes in the yeast regulatory network.
  • Network entropy screening demonstrated superior robustness compared to determined relationships.
  • The gene CDH1 was identified as the most sensitive regulatory factor with the highest score.

Conclusions:

  • Reconstructing and visualizing gene regulatory networks is valuable for understanding life activities.
  • The developed algorithm successfully identifies vital nodes, highlighting CDH1's critical role.
  • Modulating CDH1 expression offers a potential strategy to control the yeast cell cycle.