Table IV.
AE1 E699Q-mediated sulfate efflux (sulfate ions) | 0.48 ± 0.15 pmol cell −1 s−1 (n = 12) | |
AE1 E699Q-mediated inward current (elementary charges) | 0.58 ± 0.15 pmol cell −1 s−1 (Cl-Iseth, n = 6) | |
0.37 ± 0.08 pmol cell−1 s−1 (E699Q-WT, n = 6) | ||
0.43 ± 0.05 pmol cell−1 s−1 (E699Q-DNDS, n = 4) |
The magnitude of AE1 E699Q-mediated inward current at resting potential sufficed to account for all measured AE1 E699Q-mediated sulfate efflux. n is number of separate experiments, each with 6–12 oocytes. The 12 experiments in which sulfate efflux was measured include the 7 presented in Table I plus 5 additional experiments, not included in Table I because they were not paired with measurements of Cl− influx.