Related Experiment Video
Updated: Mar 22, 2026

Genome-wide Protein-protein Interaction Screening by Protein-fragment Complementation Assay PCA in Living Cells
Published on: March 3, 2015
Predicting Protein-Protein Interactions from the Molecular to the Proteome Level
Ozlem Keskin, Nurcan Tuncbag1, Attila Gursoy
1Graduate School of Informatics, Department of Health Informatics, Middle East Technical University , 06800 Ankara, Turkey.
Computational methods are essential for predicting protein-protein interactions (PPIs) due to experimental limitations. This review covers state-of-the-art tools and databases for PPI prediction, aiding functional proteomics and drug discovery.
Area of Science:
- Molecular Biology
- Bioinformatics
- Computational Biology
Background:
- Protein-protein interactions (PPIs) are fundamental to cellular functions and biological processes.
- Understanding PPIs is crucial for functional proteomics and advancing drug discovery.
- Experimental identification of all PPIs is challenging, necessitating computational approaches.
Purpose of the Study:
- To provide a comprehensive background on protein-protein interactions and their classification.
- To review and present state-of-the-art computational methods for predicting PPIs.
- To list available computational tools, servers, and databases for PPI prediction.
Main Methods:
- Utilizing diverse biological data, including sequence, evolutionary, expression, and structural information.
- Employing physical and statistical modeling techniques to integrate data for PPI inference.
- Reviewing existing literature and resources for computational PPI prediction.
Main Results:
- A detailed overview of various computational approaches for PPI prediction.
- A curated list of current methods, servers, and databases for PPI analysis.
- Highlighting the importance of computational prediction in complementing experimental data.
Conclusions:
- Computational prediction of PPIs is a vital complement to experimental methods.
- The reviewed tools and databases facilitate large-scale PPI analysis.
- Advancements in computational methods are key to completing the proteome-level interaction map.
Related Concept Videos
Protein-protein Interfaces
Protein-Protein Interfaces
Protein Networks
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein Networks
Proteomics
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Conserved Binding Sites
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...

