{
  "url": "https://dantelabs.com/traits/long-metacarpals",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "long-metacarpals",
    "id": "HP:0010493",
    "name": "Elongated long bone of hand",
    "label": "Long metacarpals",
    "definition": "An abnormally increased length of the metacarpal bones.",
    "synonyms": [
      "Increased length of metacarpals"
    ],
    "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": "abnormal-metacarpal-morphology",
        "name": "Abnormal shape of long bones of hand",
        "url": "https://dantelabs.com/traits/abnormal-metacarpal-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "nsd1",
        "symbol": "NSD1",
        "hgnc": "HGNC:14234",
        "name": "nuclear receptor binding SET domain protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nsd1"
      },
      {
        "slug": "scarf2",
        "symbol": "SCARF2",
        "hgnc": "HGNC:19869",
        "name": "scavenger receptor class F member 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/scarf2"
      }
    ]
  }
}