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Updated: Jun 23, 2025

Identifying Protein-protein Interaction Sites Using Peptide Arrays
Published on: November 18, 2014
Protein interaction explorer (PIE): a comprehensive platform for navigating protein-protein interactions and ligand
Fabien Mareuil1, Alexandra Moine-Franel2,3, Anuradha Kar2
1Bioinformatics and Biostatistics Hub, Département Biologie Computationnelle, Institut Pasteur, USR 3756 CNRS, 75015 Paris, France.
Protein Interaction Explorer (PIE) is a new tool supporting structure-based drug discovery for protein-protein interactions (PPIs). It aids researchers in identifying binding sites and predicting drug targets from extensive structural data.
Area of Science:
- Biochemistry
- Structural Biology
- Drug Discovery
Background:
- Protein-protein interactions (PPIs) are crucial in cellular processes.
- Targeting PPIs presents a significant challenge in drug discovery.
- Existing tools lack comprehensive features for structure-based PPI drug discovery.
Purpose of the Study:
- Introduce the Protein Interaction Explorer (PIE) tool.
- Facilitate structure-based drug discovery for protein-protein interactions (PPIs).
- Aid researchers in identifying and characterizing PPI targets.
Main Methods:
- Integrated web-based tool with the iPPI-DB database.
- Utilizes extensive structural data of heterodimer complexes.
- Incorporates NGL visualizer for interactive exploration.
Main Results:
- Provides tools to identify and characterize binding pockets at PPI interfaces.
- Enables prediction of 'hot spots' crucial for ligand binding.
- Facilitates the discovery of similar protein-embedded pockets for drug repurposing.
Conclusions:
- PIE offers a comprehensive resource for structure-based PPI drug discovery.
- The tool aids in decision-making by identifying key interaction features.
- PIE supports the identification of novel therapeutic targets and repurposing opportunities.
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