{
  "url": "https://dantelabs.com/traits/spasmus-nutans",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "spasmus-nutans",
    "id": "HP:0010533",
    "name": "Spasmus nutans",
    "definition": "The combination of pendular nystagmus, head nodding, and torticollis.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-eye",
        "name": "Abnormality of the eye",
        "url": "https://dantelabs.com/traits/abnormality-of-the-eye"
      }
    ],
    "broader": [
      {
        "slug": "pendular-nystagmus",
        "name": "Pendular nystagmus",
        "url": "https://dantelabs.com/traits/pendular-nystagmus"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "scn1a",
        "symbol": "SCN1A",
        "hgnc": "HGNC:10585",
        "name": "sodium voltage-gated channel alpha subunit 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/scn1a"
      }
    ]
  }
}