EOG80CKXM GO:0016021 27/35 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] EOG80CKXM GO:0004930 26/35 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] EOG80CKXM GO:0004984 26/35 olfactory receptor activity molecular_function "Combining with an odorant and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity in response to detection of smell." [GOC:bf, GOC:dph, GOC:sart, PMID:19135896, PMID:21041441] EOG80CKXM GO:0005549 26/35 odorant binding molecular_function "Interacting selectively and non-covalently with an odorant, any substance capable of stimulating the sense of smell." [GOC:jl, ISBN:0721662544] EOG80CKXM GO:0005886 25/35 plasma membrane cellular_component "The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins." [ISBN:0716731363] EOG80CKXM GO:0050911 1/35 detection of chemical stimulus involved in sensory perception of smell biological_process "The series of events involved in the perception of smell in which an olfactory chemical stimulus is received and converted into a molecular signal." [GOC:ai] EOG80CKXM GO:0050909 1/35 sensory perception of taste biological_process "The series of events required for an organism to receive a gustatory stimulus, convert it to a molecular signal, and recognize and characterize the signal. Gustation involves the direct detection of chemical composition, usually through contact with chemoreceptor cells. This is a neurological process." [GOC:ai, http://www.onelook.com/]