Table 9.

Physically relevant parameter values for simulation of keratocyte movement in three dimensions.

parameter	value	physical interpretation
r0	1	initial radius of cell sets a length scale of 1.17 µm
(kp)2	0.35	coefficient of protrusive forcing term implies a timescale of approximately 4 s
D1	1.0	implies the diffusivity of actin bundles of 0.342 µm2 s−1
D2	100	implies the diffusivity of actin filaments of 34.2 µm2 s−1
k2	0.6–1.0	implies an actin filament growth rate of 0.15 × 10−1–0.25 s−1
ks	1	assuming a surface tension of 10 pN µm−1, sets the kinetic scale
kb	1	implies a bending rigidity of approximately 13.69 pN µm