Table 5. Values of model parameters that... | Rockefeller University Press

Table 5.

Values of model parameters that best simulate photocurrents in dark-adapted bass single cones: Response to 2-s steps of light

	Parameter	Category^a	Units	Cone 4			Mean ± SD
VP*	VP*/s	Statistical	VP*/s	50	1,975	41,466	Fig. 7
	$γ_{m a x}$	Adjustable	µM/s	95	95	40
T*	$Ψ_{0}$	Adjustable	1/s	250	250	250	237 ± 31
PDE*	$β_{s u b}$	Adjustable	µM/s per molecule	0.239	0.239	0.239	^e0.366 ± 0.101
	${}^{init}α_{PDE}$	Adjustable	1/s	2.7	2.8	—	Fig. 7
	${}^{final}α_{PDE}$		1/s	—	7.8	55
	$k_{α_{PDE}}$		1/s	—	10	—
Ca²⁺ influx	$K_{H A}$	Adjustable	µM	0.12	0.12	0.12	0.085 ± 0.024
	$C_{H A}$	Adjustable	µM	31.4	31.4	31.4	26.4 ± 9.3
	B	Adjustable		15	15	15	11 ± 3.3
Ca²⁺ efflux	$J_{C a}^{\max}$	Statistical	pA	3.89	3.89	3.89	3.96 ± 0.9
	$K_{C a}^{e x c}$	Adjustable	µM	0.030	0.030	0.030	0.025 ± 0.006

	Parameter	Category^a	Units	Cone 4			Mean ± SD
VP*	VP*/s	Statistical	VP*/s	50	1,975	41,466	Fig. 7
	$γ_{m a x}$	Adjustable	µM/s	95	95	40
T*	$Ψ_{0}$	Adjustable	1/s	250	250	250	237 ± 31
PDE*	$β_{s u b}$	Adjustable	µM/s per molecule	0.239	0.239	0.239	^e0.366 ± 0.101
	${}^{init}α_{PDE}$	Adjustable	1/s	2.7	2.8	—	Fig. 7
	${}^{final}α_{PDE}$		1/s	—	7.8	55
	$k_{α_{PDE}}$		1/s	—	10	—
Ca²⁺ influx	$K_{H A}$	Adjustable	µM	0.12	0.12	0.12	0.085 ± 0.024
	$C_{H A}$	Adjustable	µM	31.4	31.4	31.4	26.4 ± 9.3
	B	Adjustable		15	15	15	11 ± 3.3
Ca²⁺ efflux	$J_{C a}^{\max}$	Statistical	pA	3.89	3.89	3.89	3.96 ± 0.9
	$K_{C a}^{e x c}$	Adjustable	µM	0.030	0.030	0.030	0.025 ± 0.006

Mean ± SD; n = 10 cones.

Values of invariant parameters first used to compute dark and flash photocurrents are not repeated here. They have the same values listed in Table 2.