 It includes all the G protein-coupled receptors, voltage-gated ion channels, 7TM receptors, nuclear receptors, ligand-gated ion channels and Kinases which are known to be in the human genome.Where relevant, data on the rat and mouse homologues are presented to assist researchers and clinicians in developing and/or enhancing therapeutics for eventual medication in humans.NC-IUPHAR also promulgates standards of name nomenclature for research in pharmacology and the related disciplines.