Table 1.

Reversal potentials of WT-CFTR and mutants in ND96 bath solution

CFTR n Vrev 
  mV 
WT 14 −27.75 ± 0.78 
R334A −12.15 ± 1.64a 
R117A −22.51 ± 0.85a 
E116R −21.45 ± 1.14a 
K114D −24.68 ± 3.22 
D110R −27.64 ± 3.29 
R104E −21.15 ± 1.08a 
R899C −25.30 ± 3.94 
D891C −25.81 ± 2.44 
K892E −23.70 ± 3.62 
E1124R −18.32 ± 0.43a 
E1126R −20.67 ± 3.16b 
R117E/E1126R −23.06 ± 1.37b 
R104E/E116R −27.17 ± 1.08 
CFTR n Vrev 
  mV 
WT 14 −27.75 ± 0.78 
R334A −12.15 ± 1.64a 
R117A −22.51 ± 0.85a 
E116R −21.45 ± 1.14a 
K114D −24.68 ± 3.22 
D110R −27.64 ± 3.29 
R104E −21.15 ± 1.08a 
R899C −25.30 ± 3.94 
D891C −25.81 ± 2.44 
K892E −23.70 ± 3.62 
E1124R −18.32 ± 0.43a 
E1126R −20.67 ± 3.16b 
R117E/E1126R −23.06 ± 1.37b 
R104E/E116R −27.17 ± 1.08 

Values are mean ± SEM. n, number of oocytes. Vrev, reversal potential for Cl.

a

P < 0.001 compared with WT-CFTR by t test.

b

P < 0.01 compared with WT by t test.

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