Related Experiment Video
Updated: May 21, 2026
06:50
Computational Prediction of Amino Acid Preferences of Potentially Multispecific Peptide-Binding Domains Involved in Protein-Protein Interactions
Published on: January 26, 2024
Recent advances in protein-protein interaction prediction: experimental and computational methods
Matthew Jessulat1, Sylvain Pitre, Yuan Gui
1Carleton University , Department of Biology , 209 Nesbitt Building, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6 , Canada ashkan_golshani@carleton.ca.
Expert Opinion on Drug Discovery
|June 1, 2012
Summary
Understanding protein-protein interactions (PPIs) is crucial for cell function. This review covers experimental and computational methods, focusing on sequence-based prediction algorithms like PIPE for large-scale PPI mapping.
Area of Science:
- Molecular Biology
- Bioinformatics
- Systems Biology
Background:
- Proteins function within complex cellular networks.
- Understanding protein-protein interactions (PPIs) is vital for elucidating cellular processes.
- PPIs are fundamental to biological pathways and cellular functions.
Purpose of the Study:
- To review experimental techniques for discovering PPIs.
- To discuss computational methods for predicting protein interactions.
- To highlight sequence-based prediction strategies and the PIPE algorithm.
Main Methods:
- Experimental: Yeast two-hybrid, tandem affinity purification, protein microarrays.
- Computational: Gene localization, phylogenetic information, 3D structural modeling, primary protein sequence analysis.
- Focus on primary sequence-based methods and the Protein Interaction Prediction Engine (PIPE).
Main Results:
- Experimental techniques provide direct evidence of PPIs.
- Computational methods offer scalable prediction of PPIs.
- The PIPE algorithm demonstrates potential for global PPI prediction.
Conclusions:
- Global PPI maps are essential for understanding complex diseases.
- PPI prediction techniques will significantly impact future biological research.
- Advancements in large-scale PPI prediction are expected to accelerate drug discovery.
Related Concept Videos
02:04Protein-protein Interfaces
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
02:04Protein-Protein Interfaces
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
02:26Protein Networks
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.
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,...
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,...
02:26Protein Networks
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.
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,...
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,...
02:40Ligand Binding Sites
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
01:49Conserved Binding Sites
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
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 analyses the...
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 analyses the...