{
  "url": "https://dantelabs.com/traits/equinus-calcaneus",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "equinus-calcaneus",
    "id": "HP:0008138",
    "name": "Equinus calcaneus",
    "definition": "Abnormal plantar flexion of the calcaneus relative to the longitudinal axis of the tibia. This results in the angle between the long axis of the tibia and the long axis of the heel bone (calcaneus) being greater than 90 degrees.",
    "synonyms": [
      "Equinus deformity of the calcaneus",
      "Hindfoot equinus"
    ],
    "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": "abnormality-of-the-calcaneus",
        "name": "Abnormal heel bone",
        "url": "https://dantelabs.com/traits/abnormality-of-the-calcaneus"
      },
      {
        "slug": "hindfoot-deformity",
        "name": "Hindfoot deformity",
        "url": "https://dantelabs.com/traits/hindfoot-deformity"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "aebp1",
        "symbol": "AEBP1",
        "hgnc": "HGNC:303",
        "name": "AE binding protein 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aebp1"
      },
      {
        "slug": "fbn1",
        "symbol": "FBN1",
        "hgnc": "HGNC:3603",
        "name": "fibrillin 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fbn1"
      },
      {
        "slug": "hadha",
        "symbol": "HADHA",
        "hgnc": "HGNC:4801",
        "name": "hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit alpha",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hadha"
      },
      {
        "slug": "hadhb",
        "symbol": "HADHB",
        "hgnc": "HGNC:4803",
        "name": "hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit beta",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hadhb"
      },
      {
        "slug": "syt1",
        "symbol": "SYT1",
        "hgnc": "HGNC:11509",
        "name": "synaptotagmin 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/syt1"
      },
      {
        "slug": "gjb2",
        "symbol": "GJB2",
        "hgnc": "HGNC:4284",
        "name": "gap junction protein beta 2",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gjb2"
      },
      {
        "slug": "gjb6",
        "symbol": "GJB6",
        "hgnc": "HGNC:4288",
        "name": "gap junction protein beta 6",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gjb6"
      },
      {
        "slug": "hoxd10",
        "symbol": "HOXD10",
        "hgnc": "HGNC:5133",
        "name": "homeobox D10",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hoxd10"
      }
    ]
  }
}