{
  "url": "https://dantelabs.com/traits/limited-knee-flexion",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "limited-knee-flexion",
    "id": "HP:0006389",
    "name": "Limited knee flexion",
    "definition": "Reduced ability to flex (bend) the knee joint.",
    "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": "limitation-of-knee-mobility",
        "name": "Limitation of knee mobility",
        "url": "https://dantelabs.com/traits/limitation-of-knee-mobility"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "ecel1",
        "symbol": "ECEL1",
        "hgnc": "HGNC:3147",
        "name": "endothelin converting enzyme like 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ecel1"
      },
      {
        "slug": "flnc",
        "symbol": "FLNC",
        "hgnc": "HGNC:3756",
        "name": "filamin C",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/flnc"
      },
      {
        "slug": "vcp",
        "symbol": "VCP",
        "hgnc": "HGNC:12666",
        "name": "valosin containing protein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vcp"
      },
      {
        "slug": "flna",
        "symbol": "FLNA",
        "hgnc": "HGNC:3754",
        "name": "filamin A",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/flna"
      },
      {
        "slug": "gpc6",
        "symbol": "GPC6",
        "hgnc": "HGNC:4454",
        "name": "glypican 6",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gpc6"
      }
    ]
  }
}