EOG8KM1JC	GO:0004888	1/4	transmembrane signaling receptor activity	molecular_function	"Combining with an extracellular or intracellular signal and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity." [GOC:go_curators, Wikipedia:Transmembrane_receptor]
EOG8KM1JC	GO:0007166	1/4	cell surface receptor signaling pathway	biological_process	"A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription." [GOC:bf, GOC:mah, GOC:pr, GOC:signaling]
EOG8KM1JC	GO:0016020	1/4	membrane	cellular_component	"A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it." [GOC:dos, GOC:mah, ISBN:0815316194]
EOG8KM1JC	GO:0004930	1/4	G-protein coupled receptor activity	molecular_function	"Combining with an extracellular signal and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex." [GOC:bf, http://www.iuphar-db.org, Wikipedia:GPCR]
EOG8KM1JC	GO:0016021	1/4	integral component of membrane	cellular_component	"The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane." [GOC:dos, GOC:go_curators]