Figure 9: Subspace volume-dependence of concentration fluctuation and channel open probability for multiple calcium-inactivated channels. (A) Steady-state probability distribution for = (a) , (b) , and (c) ( μM, μM^{−2} ms^{−1}). (B) Steady-state and as a function of ( to 0.15 μM^{−2} ms^{−1}).