| Disease ID | Source | Name | Description |
| 220100 | OMIM | Cystinuria (CSNU) | An autosomal disorder characterized by impaired epithelial cell transport of cystine and dibasic amino acids (lysine, ornithine, and arginine) in the proximal renal tubule and gastrointestinal tract. The impaired renal reabsorption of cystine and its low solubility causes the formation of calculi in the urinary tract, resulting in obstructive uropathy, pyelonephritis, and, rarely, renal failure. The disease is caused by variants affecting the gene represented in this entry. |
| 606407 | OMIM | Hypotonia-cystinuria syndrome (HCS) | Characterized generalized hypotonia at birth, nephrolithiasis, growth hormone deficiency, minor facial dysmorphism, failure to thrive, followed by hyperphagia and rapid weight gain in late childhood. The disease is caused by variants affecting the gene represented in this entry. Hypotonia-cystinuria syndrome is a contiguous gene syndrome caused by a homozygous deletion on chromosome 2p21 that disrupts the gene represented in this entry and PREPL (PubMed:16385448, PubMed:21686663). A homozygous 77.4-kb deletion that disrupts the gene represented in this entry, PREPL, and CAMKMT, causes atypical hypotonia-cystinuria syndrome, characterized by mild to moderate mental retardation and respiratory chain complex IV deficiency (PubMed:21686663). |