TABLE 3

Class 3 G protein-coupled receptors Family represents the classification of orphan receptors adapted from Vassilatis et al. ( 2003 ). The IUPHAR Receptor Code is described in Humphrey and Barnard ( 1998 ). A representative, but not necessarily complete list of putative endogenous ligands is given. Provisional nomenclature is given in square brackets. NC-IUPHAR does not normally allocate names to receptors where there is only a single publication identifying the putative endogenous ligand. Gene symbol approved by the HUGO Gene Nomenclature Committee (http://www.gene.ucl.ac.uk/nomenclature/). Gene IDs from Entrez Gene (http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene).