Table 4.

Diffusion coefficients

Parameter	Definition	Value
$D_{\text{Ca},\text{CYT}}$	Diffusion coefficient of Ca2+ within cytoplasm	300 μm2 s−1
$D_{\text{Ca},\text{SR}}$	Diffusion coefficient of Ca2+ within NSR	12–300 μm2 s−1
$D_{\text{CaM}}$	Diffusion coefficient of calmodulin and Ca2+-calmodulin	70 μm2 s−1
$dx,dy,dz$	Spatial step sizes	0.1 μm
${\tau }_{\text{SS\_CYT}}$	Transfer rate of Ca2+ from subspace to cytoplasm	4 × 10−5 s
${\tau }_{\text{NSR\_JSR}}$	Transfer rate of Ca2+ from NSR to JSR	0.012 s