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Property Organism Value Units ID Details
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 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...
Number of ATP hydrolysed to transmit a bit at a chemical synapse Blowfly Calliphora vicina 10000 Unitless 103553 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...
Duration of fast synaptic transmission Squid <=1 ms 102701 Llinás R, Steinberg IZ...
Fraction of recycling vesicles that were within the readily releasable pool Rat Rattus norvegicus 32 % 112034 Waters, J. and Smith...
Proportion of synapses from different synaptic subtypes Mouse Mus musculus glutamatergic ~84%: GABAergic ~16% Table - link % 112025 Micheva KD, Busse B,...
Diameter of large nerve terminal in calyx of Held Mammals ~15 μm 111280 Sudhof TC. The synaptic...
Effective diffusion range of ERK [Extracellular signal-regulated kinase] in hippocampal dendrites Rat Rattus norvegicus ~30 µm 112207 Panayotis N, Karpova A...
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...
Typical synaptic cleft distance Unspecified 20-40 nm 100721 http://faculty.washi...
Summary of quantitative presynaptic data Rodent Table - link N/A 111725 Schikorski T, Stevens...
Number of boutons in hemisegment of embryo Fruit fly Drosophila melanogaster 165.4 (±3.5) boutons/hemisegment 107576 Narayanan R, Krämer H...
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...
Number of synaptic vesicles (SVs) in readily releasable pool (RRP) at the calyx of Held in young Rat Rattus norvegicus 600 - 6,000 vesicles 112564 de Lange, R. P., de Roos...
Number of readily releasable pool of vesicles per active zone vertebrates 7 - 130 see comments section vesicles 112435 Zucker RS, Regehr WG....
Size of bouton Turtle Trachemys scripta elegans median 1: range 0.05-10.1 µm^3 115068 Yeow MB, Peterson EH....
Postsynaptic area Rat Rattus norvegicus 0.03 - 0.1 μm^2 111655 Harris JJ, Jolivet R...