{
  "url": "https://dantelabs.com/traits/cervical-hemivertebrae",
  "trait": {
    "bundleId": "2026.10.19-9814e911",
    "release": "2026-09-01",
    "slug": "cervical-hemivertebrae",
    "id": "HP:0025481",
    "name": "Cervical hemivertebrae",
    "definition": "Absence of one half of the vertebral body in the cervical spine.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      }
    ],
    "broader": [
      {
        "slug": "hemivertebrae",
        "name": "Missing part of vertebrae",
        "url": "https://dantelabs.com/traits/hemivertebrae"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "madd",
        "symbol": "MADD",
        "hgnc": "HGNC:6766",
        "name": "MAP kinase activating death domain",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/madd"
      },
      {
        "slug": "puf60",
        "symbol": "PUF60",
        "hgnc": "HGNC:17042",
        "name": "poly(U) binding splicing factor 60",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/puf60"
      }
    ]
  }
}