Inherited in an autosomal recessive pattern, GS is caused by inactivating mutations in the solute carrier family 12 member 3 gene (SLC12A3, Gene ID: 6559; MIM: 600968; Gene Bank: NC_000016.10), which encodes the thiazide-sensitive sodium-chloride cotransporter (NCC) [6]. Here, SLC12A3 is linked to Gerstmann syndrome.