This pathway was created using the [GPCRDB](http://www.gpcr.org/7tm/) (Horn et al., 1998), (originally at the [CMBI](http://www.cmbi.kun.nl/7tm/)). 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. This pathway was inferred from Homo sapiens pathway [http://www.wikipathways.org/index.php?title=Pathway:WP117&oldid=20929 WP117(r20929)] with a 58% conversion rate.

G protein mediated signaling pathway PW:0000125 Pathway Ontology