This pathway was created using the GPCRDB (Horn et al., 1998). The groupings are based on the GPCR phylogenetic tree available from the GPCRDB and the training sets used by Karchin et al. (Bioinformatics, 2002, pg. 147-159). The labels indicate children and grandchildren of the various classes of GPCRs as described by these references.
Karchin R, Karplus K, Haussler D; ''Classifying G-protein coupled receptors with support vector machines''; Bioinformatics, 2002 PubMedEurope PMCScholia
Horn F, Weare J, Beukers MW, Hörsch S, Bairoch A, Chen W, Edvardsen O, Campagne F, Vriend G.; ''GPCRDB: an information system for G protein-coupled receptors''; Nucleic Acids Research , 1998 PubMedEurope PMCScholia