PT2; Slc7a12), fibroblast (Col1a1), and myofibroblast (Acta2) of FA mice but not in podocytes (Nphs2), distal convoluted tubules (Slc12a3), intercalated cells of the collecting duct (Atp6v1g3), or principal cells (Aqp2). Here, AQP2 is linked to Friedreich ataxia.