{
  "url": "https://dantelabs.com/traits/hemisacrum",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "hemisacrum",
    "id": "HP:0009790",
    "name": "Hemisacrum",
    "definition": "A hemisacral defect involving the sacral vertebrae S2 to S5. In hemisacrum, the first sacral vertebra is intact and there is agenesis involving only S2-S5.",
    "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": "sacral-segmentation-defect",
        "name": "Sacral segmentation defect",
        "url": "https://dantelabs.com/traits/sacral-segmentation-defect"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "mnx1",
        "symbol": "MNX1",
        "hgnc": "HGNC:4979",
        "name": "motor neuron and pancreas homeobox 1",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mnx1"
      },
      {
        "slug": "vangl1",
        "symbol": "VANGL1",
        "hgnc": "HGNC:15512",
        "name": "VANGL planar cell polarity protein 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vangl1"
      }
    ]
  }
}