BindingDB Dataset, January 1, 2026. In BindingDB: Measured Binding Data for Protein-Ligand and Other Molecular Systems

This object is the BindingDB dataset as of January 1, 2026. The core data for a given binding measurement comprises the identity of the two molecules involved, usually a protein and a small organic molecule; a measured indicator of their affinity, such as a dissociation constant or IC50; and the identity of the document from which the measurement was curated. Proteins are identified primarily by UniProt ID and small organic molecules by SMILES strings. This BindingDB release contains about 3.18 million experimental binding data.