Conservation of pH sensitivity in the epithelial sodium channel (ENaC) with Liddle's syndrome mutation.

Abstract excerpt

Gain-of-function mutations of the epithelial Na+ channel (ENaC) cause a rare form of hereditary hypertension, Liddle's syndrome. How these mutations lead to increased channel activity is not yet fully understood. Since wild-type ENaC (wt-ENaC) is highly pH-sensitive, we wondered whether an altered pH-sensitivity of ENaC might contribute to the hyperactivity of ENaC with Liddle's syndrome mutation (Liddle-ENaC)....

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