Figure 3. Simulations of granule inventory buildup.

Unit granule diameter is about 500±20 nm (K_β= 20). One unit-granule (G₁) is packed every ten minutes under the limitation of µ=2λ and heterotypic fusion of which 0.1% of the granules are secreted evokedly. Final inventory size is designed to stabilize at a total content of 1000 granules and takes significantly more than three years. Mean granule size (inset), independent of inventory size, correlates well with published data for rat mast cells⁴⁷ eosinophil⁴⁹ for the case of K_β= K_γ+1=20.