The forkhead transcription factor Foxi1 directly activates the AE4 promoter.


Intercalated cells are highly specialized cells within the renal collecting duct epithelium and play an important role in systemic acid-base homoeostasis. Whereas type A intercalated cells secrete protons via an apically localized H+-ATPase, type B intercalated cells secrete HCO3-. Type B intercalated cells specifically express the HCO3-/Cl- exchanger AE4… (More)


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