{
  "url": "https://dantelabs.com/traits/spondylolysis",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "spondylolysis",
    "id": "HP:0003304",
    "name": "Spondylolysis",
    "definition": "Spondylolysis is an osseous defect of the pars interarticularis, thought to be a developmental or acquired stress fracture secondary to chronic low-grade trauma.",
    "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": "abnormality-of-the-vertebral-column",
        "name": "Abnormality of the vertebral column",
        "url": "https://dantelabs.com/traits/abnormality-of-the-vertebral-column"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "alpk3",
        "symbol": "ALPK3",
        "hgnc": "HGNC:17574",
        "name": "alpha kinase 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/alpk3"
      },
      {
        "slug": "ctsk",
        "symbol": "CTSK",
        "hgnc": "HGNC:2536",
        "name": "cathepsin K",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ctsk"
      },
      {
        "slug": "lmx1b",
        "symbol": "LMX1B",
        "hgnc": "HGNC:6654",
        "name": "LIM homeobox transcription factor 1 beta",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmx1b"
      },
      {
        "slug": "zfx",
        "symbol": "ZFX",
        "hgnc": "HGNC:12869",
        "name": "zinc finger protein X-linked",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zfx"
      },
      {
        "slug": "aga",
        "symbol": "AGA",
        "hgnc": "HGNC:318",
        "name": "aspartylglucosaminidase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aga"
      },
      {
        "slug": "flna",
        "symbol": "FLNA",
        "hgnc": "HGNC:3754",
        "name": "filamin A",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/flna"
      },
      {
        "slug": "flnb",
        "symbol": "FLNB",
        "hgnc": "HGNC:3755",
        "name": "filamin B",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/flnb"
      },
      {
        "slug": "runx2",
        "symbol": "RUNX2",
        "hgnc": "HGNC:10472",
        "name": "RUNX family transcription factor 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/runx2"
      }
    ]
  }
}