. Author manuscript; available in PMC: 2009 Oct 19.

Published in final edited form as: Vis Neurosci. 2009 Mar 11;26(2):177–187. doi: 10.1017/S0952523809090026

Table 1. The summary and comparison of the T-type Ca²⁺ current properties between the three subgroups of T-rich cone bipolar cells (CBCs) and the three T-type Ca²⁺ channel subunits.

The data for the DTT modulation are presented as the percentage of increase (+) or decrease (-) compared to control after the application of 2 mM DTT. The data for Ba²⁺/Ca²⁺ permeability are presented as the percentage of the Ba²⁺ current normalized to the Ca²⁺ current when 10 mM extracellular Ca²⁺ was replaced by 10 mM Ba²⁺. The data for Ba²⁺/Ca²⁺ permeability are presented as the percentage of the Ba²⁺ current normalized to the Ca²⁺ current when 10 mM extracellular Ca²⁺ was replaced by 10 mM Ba²⁺. The data for the Ni²⁺ sensitivity are presented as the percentage of the blockade after the application of 20 μM Ni²⁺. All data are presented as mean ± SD from the indicated number of cells.

	CBC Subgroup 1 (n = 44)	α1G (n = 10)	CBC Subgroup 2 (n = 29)	α 1H (n = 12)	CBC Subgroup 3 (n = 20)	α1I (n = 9)
DTT modulation	-4.2 ±1.9	2.6 ± 2.7	32.2 ± 8.2	22 ± 5.2	-3.4 ± 1.7	4.0 ± 1.7
Ba²⁺/Ca²⁺ permeability	75.5 ± 6.7	82 ± 4.7	145 ± 11	146 ± 11	99 ± 0.9	99 ± 0.5
Ni²⁺ sensitivity	-25.6 ± 6.0	-25.0 ± 6.0	-64 ± 11	-65 ± 15	-22 ± 8.0	-12 ± 8.0
Time to peak (ms)	19.5 ± 2.1	17.2 ± 2.2	24.7 ± 3.3	23.3 ± 2.4	34.8 ± 3.7	36.1 ± 3.1
Decay time (ms)	55.6 ± 3.8	31.6 ± 3.6	67.2 ± 6.2	35 ± 4.8	93.5 ± 5.8	75.4 ± 5.9

Table 1. The summary and comparison of the T-type Ca2+ current properties between the three subgroups of T-rich cone bipolar cells (CBCs) and the three T-type Ca2+ channel subunits.

Table 1. The summary and comparison of the T-type Ca²⁺ current properties between the three subgroups of T-rich cone bipolar cells (CBCs) and the three T-type Ca²⁺ channel subunits.