Each protein expressed in a cell can interact with various different proteins and other molecules in the course of its function. Protein-protein interactions are often mediated by modular protein domains. One example is the SH3 domain which binds a proline rich motif. This database will span the complexity of interaction information gathered through experimental studies of biomolecular interactions. Interaction information will come from the literature, submitters and other databases.
BIND contains interaction, molecular complex and pathway records.
An Interaction record is based on the interaction between two objects. An object can be a protein, DNA, RNA, ligand or molecular complex. Description of an interaction encompasses cellular location, experimental conditions used to observe the interaction, conserved sequence, molecular location of interaction, chemical action, kinetics, thermodynamics, and chemical state. Molecular complexes are defined as collections of more than two interactions that form a complex, with extra descriptive information such as complex topology. Pathways are defined as collections of more than two interactions that form a pathway, with extra descriptive information such as cell cycle stage.