Nephronophthisis 1, also known as nphp1, is related to joubert syndrome 4 and nephronophthisis 18, and has symptoms including polyuria and polydipsia. An important gene associated with Nephronophthisis 1 is NPHP1 (Nephrocystin 1), and among its related pathways/superpathways are Organelle biogenesis and maintenance and Bardet-Biedl syndrome. Affiliated tissues include kidney and liver, and related phenotypes are nephronophthisis and hypertension