Related Experiment Video
Updated: Aug 6, 2026
08:38
Genome-wide Protein-protein Interaction Screening by Protein-fragment Complementation Assay (PCA) in Living Cells
Published on: March 3, 2015
Finding the evidence for protein-protein interactions from PubMed abstracts
Hyunchul Jang1, Jaesoo Lim, Joon-Ho Lim
1Bioinformatics Team, Electronics and Telecommunications Research Institute (ETRI), Gajeong-Dong, Yuseong-Gu, Daejeon, 305-350, Korea. janghc@etri.re.kr
Bioinformatics (Oxford, England)
|July 29, 2006
Summary
This study introduces a method to validate protein-protein interactions from PubMed abstracts. The approach successfully identified a significant percentage of known interactions, aiding biological research validation.
Area of Science:
- Bioinformatics
- Computational Biology
- Molecular Biology
Background:
- Protein-protein interactions are vital in biological processes, necessitating accurate identification and validation.
- Existing structured databases for protein interactions are incomplete, with much data residing in unstructured text.
- Automated extraction of protein interactions from scientific literature is challenging for database integration.
Purpose of the Study:
- To develop and present a method for validating protein-protein interactions using PubMed abstracts.
- To address the difficulties in applying automatically extracted interaction data to manually curated databases.
Main Methods:
- Automatic generation of search queries based on protein pairs.
- Collection and processing of relevant abstracts from PubMed.
- Recognition of target proteins, synonyms, and extraction of interaction information.
Main Results:
- The developed method successfully retrieved 67.37% of protein-protein interactions from the DIP-PPI corpus using PubMed abstracts.
- An even higher retrieval rate of 87.37% was achieved when utilizing full-text articles.
Conclusions:
- The proposed method effectively validates protein-protein interactions by leveraging PubMed abstracts and full texts.
- This approach offers a valuable tool for researchers to supplement manually curated interaction databases and accelerate biological 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,...
01:24Protein Organization
Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
The primary structure of a protein is its amino acid sequence.
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...
02:35Noncovalent Attractions in Biomolecules
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...