TABLE 1:

Parameter values for the reaction-diffusion model.

Description		Parameter	Howell (2009)	This work	Units
Cdc42D + BemGEF	→Cdc42T + BemGEF	k2a	0.16	0.16	μM−1 s−1
Cdc42D + BemGEF42	→Cdc42T + BemGEF42	k3	0.35	0.35	μM−1 s−1
Cdc42T	→Cdc42D	k2b	0.315	0.63	s−1
Cdc42D + GDIc	→GDI42	k6a	1.5	15	μM−1 s−1
GDI42	→Cdc42D + GDIc	k6b	0.5	5	s−1
GDI42	→GDI42c	k5b	0.13	1.3	s−1
GDI42c	→GDI42	k5a	0.9	9	s−1
Cdc42T + BemGEF	→BemGEF42	k4a	10	10	μM−1 s−1
Cdc42T + BemGEFc	→BemGEF42	k7	10	10	μM−1 s−1
BemGEF42	→Cdc42T + BemGEF	k4b	10	10	s−1
BemGEFc	→BemGEF	k1a	10	10	s−1
BemGEF	→BemGEFc	k1b	10	10	s−1
	Volume ratio	η	0.01	0.01
	Diffusion constant (membrane)	Dm	0.0025	0.0025	μm2 s−1
Total [Cdc42p]			5	5	μM
Total [BemGEF]			0.017	0.017	μM
Total [GDI]			5	5	μM