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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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StrongestPath: a Cytoscape application for protein-protein interaction analysis.

Zaynab Mousavian1, Mehran Khodabandeh2, Ali Sharifi-Zarchi3,4

  • 1Department of Computer Science, School of Mathematics, Statistics and Computer Science, College of Science, University of Tehran, Tehran, Iran. zmousavian@ut.ac.ir.

BMC Bioinformatics
|June 30, 2021
PubMed
Summary

StrongestPath identifies high-confidence protein-protein interaction (PPI) pathways in biological networks. This Cytoscape 3 application aids in discovering key proteins and regulatory paths within signaling networks.

Keywords:
Cytoscape AppPathway reconstructionProtein–protein interaction networkRegulatory pathwaySignaling network

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Area of Science:

  • Bioinformatics
  • Systems Biology
  • Computational Biology

Background:

  • StrongestPath is a Cytoscape 3 application for analyzing protein-protein interaction (PPI) and signaling networks.
  • It processes interactions with varying confidence levels to identify high-confidence pathways.
  • The tool supports built-in human/mouse databases and user-provided datasets.

Purpose of the Study:

  • To develop a robust application for identifying significant interaction pathways.
  • To enable the discovery of key proteins within biological networks.
  • To facilitate the analysis of regulatory paths between transcription factors and target genes.

Main Methods:

  • Utilizes Cytoscape 3 for network visualization and analysis.
  • Implements algorithms to identify interaction cascades with the highest total confidence scores.
  • Supports network expansion by adding high-confidence interacting proteins.

Main Results:

  • Demonstrated utility on 12 NetPath signaling pathways.
  • Successfully identified proteins playing significant roles within pathways.
  • Validated the application's capability in finding strongest paths in PPI and signaling networks.

Conclusions:

  • StrongestPath offers user-friendly analysis of complex biological networks.
  • Provides efficient identification of critical proteins and pathways.
  • Addresses key challenges in network analysis through an integrated platform.