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. 2012 May 27;38(3):465–496. doi: 10.1007/s10867-012-9267-7

Table 4.

Parameters used for glutamate dynamics in the bouton and cleft

Symbol Description Value Reference
A Ca2 +  association rate constant 0.3 μM ms − 1 [36]
β Ca2 +  dissociation rate constant 3 ms − 1 [36]
γ Isomerization rate constant (forward) 30 ms − 1 [36]
Δ Isomerization rate constant (backward) 8 ms − 1 [36]
τrec Vesicle recovery time constant 800 ms [29]
τinac Vesicle inactivation time constant 3 ms [29]
a1 Ca2 +  concentration at which λ is halved 50 μM See text
a2 Slope factor of spontaneous release rate λ 5 μM See text
a3 Maximum spontaneous release rate 0.85 ms − 1 See text
nv Number of docked vesicles 2 [50]
gv Glutamate concentration in single vesicles 60 mM [54]
gc Glutamate clearance rate constant 10 ms − 1 [31]