TABLE 1

Intrinsic properties of hKv1.3 wild type and mutants in transiently transfected COS-7 cells

All values are given as mean ± S.D.; numbers of independent experiments are given in parentheses.

hKv1.3
Wild Type H399T A413C/H399T
V1/2 (mV) -33 ± 1 (2) -36 ± 1 (9) -37 ± 1 (3)
k (mV) 10 ± 1 (2) 7 ± 1 (9) 7 ± 1 (3)
τm (ms) 2.9 ± 0.4 (6) 3.9 ± 0.7 (10) 4.9 ± 1.1 (10)
τh at 40 mV (ms) 291 ± 53 (6) 678 ± 134 (10) 1220 ± 200 (10)
τt at -60 mV (ms) 117 (1) 434 ± 119 (8) 30 ± 14 (9)
τrec at -120 mV (s) 13.6 ± 0.2 (4) ≤ 1.1 (4) ≤ 1.1 (4)