Table 3. Spinal cord mRNA expression levels of Kcna (K_v1) and Kcnc (K_v3) isoforms.

K channel isoform	WT	BK−/−	t test
Kcna1	1.00 ± 0.14	0.90 ± 0.04	0.46
Kcna2	1.00 ± 0.16	0.93 ± 0.09	0.68
Kcna4	1.00 ± 0.29	0.58 ± 0.05	0.15
Kcnc1	1.00 ± 0.19	1.27 ± 0.25	0.38
Kcnc2	1.00 ± 0.14	1.36 ± 0.29	0.25
Kcnc3	1.00 ± 0.10	1.05 ± 0.17	0.79
Kcnc4	1.00 ± 0.14	1.20 ± 0.21	0.41

Real-time quantitative RT-PCR was performed on mRNA isolated from WT and BK^−/− lumbosacral spinal cords. Expression levels were normalized to WT levels. All values are shown ± SEM. n = five spinal cords per group.