Table 1.

Physiological characteristics of the resting rod bipolar cell

	Wild type (n)	Gnb3 null (n)	t test value
Resting potential (mV)	−47.11 ± 4.74 (17)	−39.44 ± 3.57 (15)	0.22
Holding current (pA)	−9.15 ± 5.72 (25)	−24.96 ± 9.57 (24)	0.16
Voltage noise (mV)	1.85 ± 0.32 (17)	1.55 ± 0.19 (15)	0.44
Current noise (pA)	3.04 ± 0.61 (25)	2.75 ± 0.18 (24)	0.65

Channel activity obtained by whole-cell recording was similar in wild-type and Gnb3-null rod bipolar cells. Numbers are averages ± SE. Resting potential and voltage noise were measured when the current was clamped at 0 pA; holding current and current noise were measured when cells were clamped at −60 mV.