Neurotransmitter release cycle (Homo sapiens)
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Description
Neurotransmitter is stored in the synaptic vesicle in the pre-synaptic terminal prior to its release in the synaptic cleft upon depolarization of the pre-synaptic membrane. The release of the neurotransmitter is a multi-step process that is controlled by electrical signals passing through the axons in form of action potential. Neurotransmitters include glutamate, acetylcholine, nor-epinephrine, dopamine and seratonin. Each of the neurotransmitter cycle is independently described.
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
3-Methoxy-4-
hydroxyphenylglycol | Metabolite | 16436 (ChEBI) | |
4a-
hydroxytetrahydrobiop terin | Metabolite | 15374 (ChEBI) | |
5-Hydroxytryptamine | Metabolite | 28790 (ChEBI) | |
ADP | Metabolite | 16761 (ChEBI) | |
ATP | Metabolite | 15422 (ChEBI) | |
Acetyl-CoA | Metabolite | 15351 (ChEBI) | |
Acetylcholine Loaded
Synaptic Vesicle | Complex | REACT_17766 (Reactome) | |
CO2 | Metabolite | 16526 (ChEBI) | |
Choline | Metabolite | 15354 (ChEBI) | |
Choline transporter
(ChT1) | Protein | Q9GZV3 (UniProt) | |
CoA-SH | Metabolite | 15346 (ChEBI) | |
DDC dimer | Complex | REACT_15591 (Reactome) | |
Docked Glutamate
Loaded Synaptic Vesicle | Complex | REACT_12825 (Reactome) | Glutamate synaptic vesicle contains Rab3 ( GTPase), synaptobrevin/VAMP ( V-SNARE), VGLUT1 (Glutamate transporter) and synpatotagmin which is beleived to be a Ca2+ sensor and plays a role in the synaptic vesicle fusion process. |
Docked Noradrenalin
loaded synaptic vesicle | Complex | REACT_15843 (Reactome) | |
Docked acetylcholine
loaded Synaptic Vesicle | Complex | REACT_17285 (Reactome) | Acetylcholine synaptic vesicle contains Rab3 ( GTPase), synaptobrevin/VAMP ( V-SNARE), VGLUT1 (Glutamate transporter) and synpatotagmin which is beleived to be a Ca2+ sensor and plays a role in the synaptic vesicle fusion process. |
Docked dopamine
loaded synaptic vesicle | Complex | REACT_15684 (Reactome) | |
Docked serotonin
loaded synaptic vesicle | Complex | REACT_17565 (Reactome) | |
Dopa | Metabolite | 15765 (ChEBI) | |
Dopamine | Metabolite | 18243 (ChEBI) | |
Dopamine loaded
synaptic vesicle | Complex | REACT_15992 (Reactome) | |
Empty Acetylcholine
Synaptic Vesicle | Complex | REACT_12740 (Reactome) | |
Empty Glutamate
Synaptic Vesicle | Complex | REACT_14482 (Reactome) | |
GLS dimers | Unknown | REACT_21656 (Reactome) | |
Glutamate loaded
synaptic vesicle | Complex | REACT_12769 (Reactome) | |
H+ | Metabolite | 15378 (ChEBI) | |
H2O | Metabolite | 15377 (ChEBI) | |
H2O2 | Metabolite | 16240 (ChEBI) | |
L-Glutamate | Metabolite | 16015 (ChEBI) | |
L-Glutamine | Metabolite | 18050 (ChEBI) | |
L-Tyrosine | Metabolite | 17895 (ChEBI) | |
MAOA-FAD complex | Complex | REACT_5113 (Reactome) | |
Munc 13 | Protein | O14795 (UniProt) | |
Munc18 | Protein | P61764-1 (UniProt) | Munc 18 interacts with syntaxin in the plasma membrane, with Mint (Munc 18 interacting) which in turn interacts with CASK and neurexins. Munc18 also interacts with granulophilin. Granulophilin is interacts simultaneously with syntaxin and Munc18. These interactions are believed to be involved in the docking of the synaptic vesicle to the plasma membrane. However, the sequence of events is unclear. |
NH3 | Metabolite | 16134 (ChEBI) | |
NH4+ | Metabolite | 28938 (ChEBI) | |
Neuronal EAATs | Unknown | REACT_14035 (Reactome) | |
Noradrenalin loaded
synaptic vesicle | Complex | REACT_17964 (Reactome) | |
Noradrenaline | Metabolite | 18357 (ChEBI) | |
Noradrenaline
uptake transporter | Protein | O15244 (UniProt) | |
O-acetylcholine | Metabolite | 15355 (ChEBI) | |
Orthophosphate | Metabolite | 18367 (ChEBI) | |
Oxygen | Metabolite | 15379 (ChEBI) | |
RIM (Rab3A
interacting) | Protein | Q86UR5 (UniProt) | |
Rab3-RIM complex | Complex | REACT_13268 (Reactome) | Rab3A, located in the synaptic vesicle membrane, interacts with RIM ( Rab3A interacting Molecule) and with Doc2. These interactions are beleived to initiate the process of priming which precedes the fuison of the synaptic vesicle with the plasma membrane. |
Rab3A | Protein | P20336 (UniProt) | Rab3A, located in the synaptic vesicle membrane, interacts with RIM ( Rab3A interacting Molecule) and with Doc2. These interactions are beleived to initiate the process of priming which precedes the fuison of the synaptic vesicle with the plasma membrane. |
SLC38A2 | Protein | Q96QD8 (UniProt) | |
SNAP 25 variant1
(active) | Protein | P60880-1 (UniProt) | |
SNARE complex | Complex | REACT_12700 (Reactome) | |
Serotonin | Metabolite | 28790 (ChEBI) | |
Serotonin loaded
synaptic vesicle | Complex | REACT_16110 (Reactome) | |
Synapsin | Protein | REACT_18217 (Reactome) | |
Synaptotagmin 1 | Protein | P21579 (UniProt) | |
Syntaxin 1A variant3 | Protein | Q16623-3 (UniProt) | |
TH:Fe++ | Complex | REACT_15832 (Reactome) | |
Tetrahydrobiopterin | Metabolite | 15372 (ChEBI) | |
VGLUT1 | Protein | Q9P2U7 (UniProt) | |
Vesicular
acetylcholine transporter | Protein | Q16572 (UniProt) | |
Vesicular
monoamine transporter | Protein | Q05940 (UniProt) | |
Vesicular
monoamine transporter VMAT2 | Protein | Q05940 (UniProt) | |
choline O-
acetyltransferase | Protein | P28329 (UniProt) | |
complexin 1 | Protein | O14810 (UniProt) | |
sodium ion | Metabolite | 29101 (ChEBI) |
Annotated Interactions
No annotated interactions