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. 2015 Nov 18;5:16747. doi: 10.1038/srep16747

Figure 9. Effects of external pH on Orai1/STIM1 channel and its mutants in external solutions with 20 mM Ca2+.

Figure 9

(AF) Original recordings in 20 mM Ca2+ Tyrode’s solution at pHo 5.5, 7.4 and 9.0. Please note that E106D, especially E190Q, conducted very small currents. E106D is insensitive to both pHo 5.5 and pHo 9.0, whereas E190Q is insensitive to pHo 5.5.