Besides CLCN5 (DD1) and OCRL (Lowe syndrome and Dent disease type 2) genes, they include LRP2 (DB/FOAR), CUBN, AMN (Imerslund–Gräsbeck syndrome), and CTNS (nephropathic cystinosis). The gene discussed is CTNS; the disease is nephropathic infantile cystinosis.