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. 2005 Apr;125(4):377–394. doi: 10.1085/jgp.200409228

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Copyright © 2005, The Rockefeller University Press

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Figure 2. — Macroscopic current relaxation for ΔR/E1371S-CFTR channels in the presence of ATP and ADP. (A) A sample trace of current relaxations for ΔR/E1371S-CFTR channels opened with 1 mM ATP, and subsequently with 1 mM ATP + 2 mM ADP. (B) The current decay upon removal of ATP can be fitted with a single exponential function with a time constant of 100.00 ± 0.02 s. (C) The current decay upon removal of ATP plus ADP is fitted with a double exponential function with time constants of 12.9 ± 0.1 and 105 ± 3 s.