saturation function of the InsP3 receptor

when flag=0, beta=0, flag=1, beta=beta_f*exp[-0.2*(t-tp)]

According to the legend of Figure4B, beta decays from the initial value beta_f=96% according to the equation beta=beta_f*exp[-0.2*(t-tp)]. and tp=4s.

flag 0.96 0.2 time tstim

v1 beta Cytosol

v0 Cytosol

kf y Cytosol

intracellular_Ca_storepool VM2 z n K2 n z n

Cytosol VM3 y m KR m y m z p KA p z p

k z extracellular

time tstim

1