Ki Database

The K_i Database (or K_i DB) is a public domain database of published binding affinities (K_i) of drugs and chemical compounds for receptors, neurotransmitter transporters, ion channels, and enzymes. The resource is maintained by the University of North Carolina at Chapel Hill and is funded by the NIMH Psychoactive Drug Screening Program and by a gift from the Heffter Research Institute. As of 2007, the database has data for 6545 compounds at 703 different receptors.