2P2IDB is a hand-curated database dedicated to the structure of protein-protein complexes with known small molecule inhibitors. We have gathered from the PDB orthosteric small molecule inhibitors (interfering at the interface on the PPIs) (Basse et al., 2016; Basse et al., 2013; Bourgeas et al., 2010). Interfaces in 2P2IDB have been analyzed in terms of geometrical parameters, atom and residue properties, buried accessible surface area and other biophysical parameters and compared to those of representative datasets of heterodimeric complexes. The complexes have been classified into 3 classes based on the number of segments at the interface and target properties. Class 1 corresponds to protein-peptide complexes, Class 2 corresponds to globular protein-protein complexes and Class 3 corresponds to Bromodomain/Histone protein-protein complexes.
The latest version (2024-12-04) contains 55 Protein-Protein complexes, 2124 Protein-Ligand complexes and 1812 PPI inhibitors.
The database is maintained by Marie-Jeanne Basse
2P2Idb v2: Update of a Structural Database Dedicated to Orthosteric Modulation of Protein-Protein Interactions Basse MJ, Betzi S, Morelli X, Roche P. Database update 2016. DOI : 10.1093/database/baw007
2P2Idb: A Structural Database Dedicated to Orthosteric Modulation of Protein-Protein Interactions Basse MJ, Betzi S, Bourgeas R, Bouzidi S, Chetrit B, Hamon V, Morelli X, Roche P. Nucleic Acid Research 2013;41:D824-827. Pubmed ID: 23203891
Atomic Analysis of Protein-Protein Interfaces with Known Inhibitors: The 2P2I database. Raphael Bourgeas, Marie-Jeanne Basse, Xavier Morelli and Philippe Roche. PLoS ONE - 2010;5(3): e9598. Pubmed ID: 20231898