EOG8FJBQ0 GO:0009593 1/13 detection of chemical stimulus biological_process "The series of events in which a chemical stimulus is received by a cell and converted into a molecular signal." [GOC:jl] EOG8FJBQ0 GO:0015276 1/13 ligand-gated ion channel activity molecular_function "Enables the transmembrane transfer of an ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts." [GOC:mtg_transport, ISBN:0815340729] EOG8FJBQ0 GO:0016021 1/13 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] EOG8FJBQ0 GO:0034220 1/13 ion transmembrane transport biological_process "A process in which an ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore." [GOC:mah] EOG8FJBQ0 GO:0036081 1/13 extracellular ammonia-gated ion channel activity molecular_function "Enables the transmembrane transfer of an ion by a channel that opens when extracellular ammonia (NH3) has been bound by the channel complex or one of its constituent parts." [GOC:sart, PMID:19135896]