{
  "url": "https://dantelabs.com/traits/abnormal-trapezium-morphology",
  "trait": {
    "bundleId": "2026.10.21-777c9289",
    "release": "2026-09-01",
    "slug": "abnormal-trapezium-morphology",
    "id": "HP:0004252",
    "name": "Abnormal trapezium morphology",
    "definition": "An anomaly of the trapezium, which is the carpal bone located at the base of the thumb.",
    "synonyms": [],
    "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-carpal-morphology",
        "name": "Abnormal wrist bones",
        "url": "https://dantelabs.com/traits/abnormal-carpal-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "lmbr1",
        "symbol": "LMBR1",
        "hgnc": "HGNC:13243",
        "name": "limb development membrane protein 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmbr1"
      },
      {
        "slug": "shh",
        "symbol": "SHH",
        "hgnc": "HGNC:10848",
        "name": "sonic hedgehog signaling molecule",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/shh"
      }
    ]
  }
}