EOG8DJNB7 GO:0016021 44/181 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] EOG8DJNB7 GO:0005230 39/181 extracellular ligand-gated ion channel activity molecular_function "Enables the transmembrane transfer of an ion by a channel that opens when a specific extracellular ligand has been bound by the channel complex or one of its constituent parts." [GOC:mtg_transport, ISBN:0815340729] EOG8DJNB7 GO:0005886 38/181 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] EOG8DJNB7 GO:0030054 36/181 cell junction cellular_component "A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix." [GOC:mah, http://www.vivo.colostate.edu/hbooks/cmb/cells/pmemb/junctions_a.html, ISBN:0198506732] EOG8DJNB7 GO:0045202 35/181 synapse cellular_component "The junction between a nerve fiber of one neuron and another neuron or muscle fiber or glial cell; the site of interneuronal communication. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane." [ISBN:0198506732] EOG8DJNB7 GO:0004890 23/181 GABA-A receptor activity molecular_function "Combining with the amino acid gamma-aminobutyric acid (GABA, 4-aminobutyrate) to initiate a change in cell activity. GABA-A receptors function as chloride channels." [PMID:8974333] EOG8DJNB7 GO:0006811 5/181 ion transport biological_process "The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore." [GOC:ai] EOG8DJNB7 GO:0006812 1/181 cation transport biological_process "The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore." [GOC:ai] EOG8DJNB7 GO:0005254 1/181 chloride channel activity molecular_function "Enables the selective, facilitated diffusion of a chloride (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism." [GOC:mtg_transport, GOC:pr, ISBN:0815340729] EOG8DJNB7 GO:0007165 1/181 signal transduction biological_process "The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell." [GOC:go_curators, GOC:mtg_signaling_feb11] EOG8DJNB7 GO:0015276 1/181 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] EOG8DJNB7 GO:0016933 1/181 extracellular-glycine-gated ion channel activity molecular_function "Enables the transmembrane transfer of an ion by a channel that opens when extracellular glycine has been bound by the channel complex or one of its constituent parts." [GOC:mtg_transport, ISBN:0815340729] EOG8DJNB7 GO:0034707 1/181 chloride channel complex cellular_component "An ion channel complex through which chloride ions pass." [GOC:mah] EOG8DJNB7 GO:0005261 1/181 cation channel activity molecular_function "Enables the selective, energy-independent passage of cations across a lipid bilayer down a concentration gradient." [GOC:def, GOC:dph, GOC:mtg_transport, GOC:pr, ISBN:0815340729] EOG8DJNB7 GO:0034220 1/181 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] EOG8DJNB7 GO:0045211 1/181 postsynaptic membrane cellular_component "A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane." [ISBN:0198506732]