WNK1 and pseudohypoaldosteronism type 2: Mutations in WNK1 (With No K-lysine kinase 1 [9], [10], MIM 605232), cause Pseudohypoaldosteronism type 2 (PHA2, MIM 145260) – a rare autosomal dominant disorder primarily characterised by early onset hypertension and hyperkalemia [8], [11].