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. Author manuscript; available in PMC: 2013 Nov 30.
Published in final edited form as: Cell Physiol Biochem. 2012 Nov 30;30(6):1444–1455. doi: 10.1159/000343332

Fig. 4.

Fig. 4

Effect of PSD-95 on NBCn1-mediated pHi changes in Xenopus oocytes. A–C) Representative pHi traces in Xenopus oocytes expressing PSD-95, NBCn1, and NBCn1/PSD-95. Oocytes were superfused with HCO3−/CO2-free ND96 solution and then with a solution equilibrated with 25 mM HCO3−, 5% CO2. The pHi was measured with the proton-selective glass electrodes. D) Mean rate of pHi recovery from CO2-induced acidification. The dpHi/dt was calculated from a linear regression line during the 2 min of recovery (n = 5 for each). *: significant compared to PSD-95 (p < 0.05).