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| Property | Organism | Value | Units | ID | Details |
|---|---|---|---|---|---|
| Number of neurotransmitter molecules in vesicle | Rat Rattus norvegicus | noradrenaline ~37,000: dopamine ~14,000 | neurotransmitter molecules/vesicle | 111046 | Courtney NA, Ford CP.... |
| Number of neurotransmitter transporters in typical synaptic vesicle | Rat Rattus norvegicus | 9-14 | copies/vesicle | 102739 | Takamori S et al., Molecular... |
| Number of neurotransmitter molecules in typical synaptic vesicle (at 150 mM) | Rat Rattus norvegicus | 1790 | copies/vesicle | 102777 | Takamori S. et al., Molecular... |
| Postsynaptic area activated by a quantum of neurotransmitter | Vertebrates | <2 | µm^2 | 107299 | Scimemi A, Beato M. ... |
| Number of molecules of neurotransmitter in one synaptic vesicle | Unspecified | 5000 | unitless | 100722 | http://faculty.washi... |
| Number of calcium ions required to release neurotransmitter vesicle at presynaptic cleft | vertebrates | 200-13,000 | Calcium ions/released vesicle | 103549 | Laughlin SB, de Ruyter... |
| Recycling time of synaptic vesicles | Rat Rattus norvegicus | 1 to 2 | Sec | 107303 | Scimemi A, Beato M. ... |
| Fraction of action potentials that trigger release from most presynaptic nerve terminals | Unspecified | 10 - 20 | % of action potentials | 111277 | Sudhof TC. The synaptic... |
| Serotonin content | Plant Plantain Musa | 30 (±7.5 Table - link) | µg/g | 102689 | Feldman JM, Lee EM. Serotonin... |
| Amount of acetylcholine (ACh) released per presynaptic nerve stimulation at the neuromuscular junction | Unspecified | 1E-15 | mmoles | 107298 | Scimemi A, Beato M. ... |
| Number of acetylcholine receptors per end plate | Mouse Mus musculus | 3e+7 | receptors/end plate | 115054 | Krnjević, K. "Chemical... |
| Concentration of dopamine in midbrain neurons | Rat Rattus norvegicus | 300 | mM | 107301 | Scimemi A, Beato M. ... |
| Vesicular concentration of catecholamine in chromaffin cells | Cow Bos Taurus | 190 to 300 | mM | 107300 | Scimemi A, Beato M. ... |
| Concentration of glutamate in synaptic vesicles | Rat Rattus norvegicus | ~60 | mM | 107302 | Scimemi A, Beato M. ... |
| Recycling time of synaptic vesicles in clathrin-mediated endocytic pathways | Eukaryotes | 15 to 20 | Sec | 107304 | Scimemi A, Beato M. ... |
| Number of synapsins in typical synaptic vesicle | Rat Rattus norvegicus | 8 | copies/vesicle | 102768 | Takamori S et al., Molecular... |
| Normal plasma norepinephrine and epinephrine concentrations | Human Homo sapiens | Table - link | pg/ml | 113137 | Cryer PE. Isotope-derivative... |
| Number of different proteins in postsynaptic density (PSD) | Rodent | 200 to >1,000 | different proteins | 112018 | O'Rourke NA, Weiler NC... |
| Rate constant of acetylcholinesterase (ACHE) | Unspecified | 16000 | Sec^-1 | 109216 | Monika Fuxreiter and... |
| Estimated date when first 5-HT (serotonin) receptors have appeared in single-celled eukaryotes, such as paramecia | Eukaryotes | 700 - 800 | Mya | 113117 | Rut Vleugels, Heleen... |