{
  "url": "https://dantelabs.com/traits/delayed-tarsal-ossification",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "delayed-tarsal-ossification",
    "id": "HP:0008103",
    "name": "Delayed ankle bone maturation",
    "label": "Delayed tarsal ossification",
    "definition": "Delayed maturation and calcification of any of the tarsal bones, seven bones of the foot comprising the calcaneus, talus, cuboid, navicular, and the cuneiform bones.",
    "synonyms": [
      "Tarsal delayed ossification"
    ],
    "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-tarsal-ossification",
        "name": "Abnormal maturation of ankle bones",
        "url": "https://dantelabs.com/traits/abnormal-tarsal-ossification"
      }
    ],
    "narrower": [
      {
        "slug": "delayed-calcaneal-ossification",
        "name": "Delayed heel bone maturation",
        "genes": 1,
        "url": "https://dantelabs.com/traits/delayed-calcaneal-ossification"
      }
    ],
    "genes": [
      {
        "slug": "pth1r",
        "symbol": "PTH1R",
        "hgnc": "HGNC:9608",
        "name": "parathyroid hormone 1 receptor",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pth1r"
      },
      {
        "slug": "hoxa13",
        "symbol": "HOXA13",
        "hgnc": "HGNC:5102",
        "name": "homeobox A13",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hoxa13"
      },
      {
        "slug": "matn3",
        "symbol": "MATN3",
        "hgnc": "HGNC:6909",
        "name": "matrilin 3",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/matn3"
      }
    ]
  }
}