JDR -- Sui et al. 82 (5): 388 Figure 3

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Figure 3. pH regulation by ameloblasts. Schematic diagram illustrating the multiple ion regulators potentially functioning in ameloblasts to regulate pH of the enamel matrix. CFTR regulates the electrogenic Na:HCO₃^- co-transporter and Cl^-/HCO₃^- exchangers to deliver HCO₃^- into the developing enamel layer.