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. 2009 Mar 13;284(11):6752–6762. doi: 10.1074/jbc.M805435200

TABLE 2.

Properties of Kir6.2 wild type, V59G, V59A, and ΔN10 channels formed with SUR1

Experiments in inside/outside patches –Mg2+; number of experiments are in parentheses.

Kir6.2
POa
GBC (1 μm)
PIP2 (10 μm) IPIP2/Icontrol
Neomycin
30 μm 1000 μm
% Inhibition % % Inhibition
Wild type 0.32 ± 0.10 (5)b 71 ± 10 (4) 900 ± 390 (12) 57 ± 5 (9) 96 ± 2 (7)
0.53 ± 0.02 (8)c
V59G 0.83 ± 0.01 (8)c 0 (10) 0 (4) 3 ± 2 (5) 16 ± 2 (5)
V59A 0.86 ± 0.01 (4) 15 ± 8 (7) 5 ± 3 (5) 17 ± 6 (6) 50 ± 11 (6)
ΔN10 0.61 ± 0.08 (4) (ΔN9)b 9 ± 5 (12) 270 ± 40 (4) 17 ± 4 (10) 60 ± 8 (7)
a

PO is the open probability of single channels in the absence of nucleotides.

b

Data from Reimann et al. (38) in Xenopus oocytes.

c

Data from Proks et al. (29) in Xenopus oocytes.