Table 1. Parameter values.

c₀ is the background concentration, a is the typical linear size of a cell, β and μ are the production and degradation rates of the reporters, $|\overrightarrow{g}|$ is the slope of the gradient [18, 19, 43].

c 0	10 nM
a	10 μm
β	1 s−1
μ	0.1 s−1
$|\overrightarrow{g}|$	0.04 nM/μm