{
  "url": "https://dantelabs.com/traits/long-fibula",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "long-fibula",
    "id": "HP:0003085",
    "name": "Long fibula",
    "definition": "Disproportionately long fibulae.",
    "synonyms": [
      "Long calf bone",
      "Disproportionately long fibula"
    ],
    "systems": [
      {
        "slug": "abnormality-of-limbs",
        "name": "Abnormality of limbs",
        "url": "https://dantelabs.com/traits/abnormality-of-limbs"
      },
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-fibula-morphology",
        "name": "Abnormality of the calf bone",
        "url": "https://dantelabs.com/traits/abnormal-fibula-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "gpx4",
        "symbol": "GPX4",
        "hgnc": "HGNC:4556",
        "name": "glutathione peroxidase 4",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/gpx4"
      },
      {
        "slug": "bgn",
        "symbol": "BGN",
        "hgnc": "HGNC:1044",
        "name": "biglycan",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/bgn"
      },
      {
        "slug": "ddr2",
        "symbol": "DDR2",
        "hgnc": "HGNC:2731",
        "name": "discoidin domain receptor tyrosine kinase 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ddr2"
      },
      {
        "slug": "nans",
        "symbol": "NANS",
        "hgnc": "HGNC:19237",
        "name": "N-acetylneuraminate synthase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nans"
      }
    ]
  }
}