{
  "url": "https://dantelabs.com/traits/cystine-nephrolithiasis",
  "trait": {
    "bundleId": "2026.10.19-9814e911",
    "release": "2026-09-01",
    "slug": "cystine-nephrolithiasis",
    "id": "HP:6001031",
    "name": "Cystine nephrolithiasis",
    "definition": "A cystine stone is a type of kidney stone that is yellowish brown with a granular surface. They are observed in individuals with Cystinuria and tend to be of early onset, to occur repeatedly, and to be associated with urinary tract infections.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-genitourinary-system",
        "name": "Abnormality of the genitourinary system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-genitourinary-system"
      }
    ],
    "broader": [
      {
        "slug": "kidney-stone",
        "name": "Kidney stone",
        "url": "https://dantelabs.com/traits/kidney-stone"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "ctns",
        "symbol": "CTNS",
        "hgnc": "HGNC:2518",
        "name": "cystinosin, lysosomal cystine transporter",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctns"
      }
    ]
  }
}