Hypercholanemia, Familial 1, also known as bile acid, elevated serum, is related to familial hypercholanemia and hypercholanemia, familial, 2. An important gene associated with Hypercholanemia, Familial 1 is TJP2 (Tight Junction Protein 2), and among its related pathways/superpathways is Cholestasis. Affiliated tissues include liver and bone.