molecular_function
binding
Wikipedia:Binding_(molecular)
GO:0005488
Note that this term is in the subset of terms that should not be used for direct, manual gene product annotation. Please choose a more specific child term, or request a new one if no suitable term is available. For ligands that bind to signal transducing receptors, consider the molecular function term 'receptor binding ; GO:0005102' and its children.
molecular_function
The selective, non-covalent, often stoichiometric, interaction of a molecule with one or more specific sites on another molecule.
ligand