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Property Organism Value Units ID Details
Number of different proteins in the brain synapse Human Homo sapiens 1000 Unitless 104523 Grant SG. The synapse...
Information speed arriving at- and transmitted from- synapse Unspecified arriving at synapse 32: transmitted from synapse 6.8 bits/sec 111651 Harris JJ, Jolivet R...
Probability of release of vesicle at synapse vertebrates connections with a single release site ~0.7: with 4 release sites 0.25-0.4: ~10 release sites ~0.1 unitless 111652 Harris JJ, Jolivet R...
Distance between parallel membranes in glutamatergic synapse Unspecified ~25 nm 112017 O'Rourke NA, Weiler NC...
Number of ATP hydrolysed to transmit a bit at a chemical synapse Blowfly Calliphora vicina 10000 Unitless 103553 Laughlin SB, de Ruyter...
Diameter of large nerve terminal in calyx of Held Mammals ~15 μm 111280 Sudhof TC. The synaptic...
Proportion of synapses from different synaptic subtypes Mouse Mus musculus glutamatergic ~84%: GABAergic ~16% Table - link % 112025 Micheva KD, Busse B,...
Number of ions that enter the postsynaptic terminal for each glutamate released Eukaryotes ~100 ions/glutamate released 108668 Attwell D, Laughlin SB....
Number of photoreceptors carrying the same signal that converge on a second order retinal neuron Blowfly Calliphora vicina 6 Unitless 103547 Laughlin SB, de Ruyter...
Number of presynaptic calcium channels open for each vesicle that is released Rat Rattus norvegicus 60 Unitless 103550 Borst, J.G.G. & Sakmann...
Summary of quantitative presynaptic data Rodent Table - link N/A 111725 Schikorski T, Stevens...
Effective diffusion range of ERK [Extracellular signal-regulated kinase] in hippocampal dendrites Rat Rattus norvegicus ~30 µm 112207 Panayotis N, Karpova A...
Fraction of recycling vesicles that were within the readily releasable pool Rat Rattus norvegicus 32 % 112034 Waters, J. and Smith...
Typical synaptic cleft distance Unspecified 20-40 nm 100721 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...
Total vesicle population in each bouton in cultured hippocampal neurons Mouse Mus musculus 100 - 200 vesicles 112558 Rizzoli SO, Betz WJ....
Number of AMPA receptors opened by a single vesicle Rat Rattus norvegicus 10 - 70 AMPA receptors 111653 Harris JJ, Jolivet R...
Time required for the diffusion of the transmitter across the synaptic gap Squid 1 µsec 102702 Llinás R, Steinberg IZ...
Duration of fast synaptic transmission Squid <=1 ms 102701 Llinás R, Steinberg IZ...
Number of synapses in a cubic millimeter of primary visual cortex (Area 17) Macaque Macaca fascicularis 266 (± 33 S.D.) synapses/mm³ (×10⁶) 112218 O’Kusky, J., & Colonnier...