EOG8P2SGN GO:0008021 22/88 synaptic vesicle cellular_component "A secretory organelle, some 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane." [PMID:10099709] EOG8P2SGN GO:0005215 22/88 transporter activity molecular_function "Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells." [GOC:ai, GOC:dgf] EOG8P2SGN GO:0016020 21/88 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] EOG8P2SGN GO:0035005 1/88 1-phosphatidylinositol-4-phosphate 3-kinase activity molecular_function "Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4-phosphate + ATP = 1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate + ADP + 2 H(+)." [EC:2.7.1.154, RHEA:18376] EOG8P2SGN GO:0016324 1/88 apical plasma membrane cellular_component "The region of the plasma membrane located at the apical end of the cell." [GOC:curators] EOG8P2SGN GO:0007269 1/88 neurotransmitter secretion biological_process "The regulated release of neurotransmitter into the synaptic cleft. A neurotransmitter is any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron of the central or peripheral nervous system and travel across the synaptic cleft to either excite or inhibit the target cell. Among the many substances that have the properties of a neurotransmitter are acetylcholine, noradrenaline, adrenaline, dopamine, glycine, gamma-aminobutyrate, glutamic acid, substance P, enkephalins, endorphins and serotonin." [CHEBI:25512, GOC:dph] EOG8P2SGN GO:0003824 1/88 catalytic activity molecular_function "Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic." [ISBN:0198506732] EOG8P2SGN GO:0045211 1/88 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] EOG8P2SGN GO:0016079 1/88 synaptic vesicle exocytosis biological_process "Fusion of intracellular membrane-bounded vesicles with the pre-synaptic membrane of the neuronal cell resulting in release of neurotransmitter into the synaptic cleft." [GOC:jid, GOC:lmg] EOG8P2SGN GO:0005544 1/88 calcium-dependent phospholipid binding molecular_function "Interacting selectively and non-covalently with phospholipids, a class of lipids containing phosphoric acid as a mono- or diester, in the presence of calcium." [GOC:jl] EOG8P2SGN GO:0001786 1/88 phosphatidylserine binding molecular_function "Interacting selectively and non-covalently with phosphatidylserine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of L-serine." [ISBN:0198506732, PMID:12000961] EOG8P2SGN GO:0016192 1/88 vesicle-mediated transport biological_process "A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane." [GOC:ai, GOC:mah, ISBN:08789310662000] EOG8P2SGN GO:0031594 1/88 neuromuscular junction cellular_component "The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential." [GOC:nln] EOG8P2SGN GO:0004252 1/88 serine-type endopeptidase activity molecular_function "Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine)." [GOC:mah, http://merops.sanger.ac.uk/about/glossary.htm#CATTYPE, ISBN:0716720094] EOG8P2SGN GO:0031982 1/88 vesicle cellular_component "Any small, fluid-filled, spherical organelle enclosed by membrane or protein." [GOC:mah, GOC:pz] EOG8P2SGN GO:0031340 1/88 positive regulation of vesicle fusion biological_process "Any process that activates or increases the frequency, rate or extent of vesicle fusion." [GOC:mah] EOG8P2SGN GO:0048167 1/88 regulation of synaptic plasticity biological_process "A process that modulates synaptic plasticity, the ability of synapses to change as circumstances require. They may alter function, such as increasing or decreasing their sensitivity, or they may increase or decrease in actual numbers." [GOC:dph, GOC:jid, GOC:tb, http://www.mercksource.com, PMID:11891290] EOG8P2SGN GO:0046928 1/88 regulation of neurotransmitter secretion biological_process "Any process that modulates the frequency, rate or extent of the regulated release of a neurotransmitter from a cell." [GOC:ai] EOG8P2SGN GO:0000149 1/88 SNARE binding molecular_function "Interacting selectively and non-covalently with a SNARE (soluble N-ethylmaleimide-sensitive factor attached protein receptor) protein." [PMID:12642621]