Table 3. Basic response-shaping... | Rockefeller University Press

Table 3.

Basic response-shaping parameters of MEM fitting of SPRs shown in Fig. 5

Parameter		Units	NR	Forsk.
Dark cGMP turnover rate	P_d	s⁻¹	0.625	0.21
Dark cGMP concentration	cG_d	µM	3	3
Fraction of dark current carried by Ca²⁺	f_Ca	-	0.15	0.25
Dark Ca²⁺ concentration	Ca_d	µM	0.5	0.75
Fast cytoplasmic Ca²⁺ turnover rate	β	s⁻¹	3.2	2.2
Maximum guanylate cyclase activity at 0 Ca²⁺	α_max	µM⋅s⁻¹	12.4	12
Rate of Rh turn-off at Ca_d	Rh_d	s⁻¹	0.964	0.81
Rate of inactivation of light-activated PDE	k_E	s⁻¹	3	1.1
Rate of PDE activation by R*	ν_RE	s⁻¹	200	180

Parameter		Units	NR	Forsk.
Dark cGMP turnover rate	P_d	s⁻¹	0.625	0.21
Dark cGMP concentration	cG_d	µM	3	3
Fraction of dark current carried by Ca²⁺	f_Ca	-	0.15	0.25
Dark Ca²⁺ concentration	Ca_d	µM	0.5	0.75
Fast cytoplasmic Ca²⁺ turnover rate	β	s⁻¹	3.2	2.2
Maximum guanylate cyclase activity at 0 Ca²⁺	α_max	µM⋅s⁻¹	12.4	12
Rate of Rh turn-off at Ca_d	Rh_d	s⁻¹	0.964	0.81
Rate of inactivation of light-activated PDE	k_E	s⁻¹	3	1.1
Rate of PDE activation by R*	ν_RE	s⁻¹	200	180