{
  "url": "https://dantelabs.com/traits/abnormal-total-hemolytic-complement-activity",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "abnormal-total-hemolytic-complement-activity",
    "id": "HP:0031904",
    "name": "Abnormal total hemolytic complement activity",
    "definition": "Any deviation from the normal total hemolytic complement activity in the circulation.",
    "synonyms": [
      "Abnormal CH50"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-immune-system",
        "name": "Abnormality of the immune system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-immune-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormality-of-complement-system",
        "name": "Abnormality of complement system",
        "url": "https://dantelabs.com/traits/abnormality-of-complement-system"
      }
    ],
    "narrower": [
      {
        "slug": "reduced-circulating-ch50-activity",
        "name": "Reduced circulating CH50 activity",
        "genes": 5,
        "url": "https://dantelabs.com/traits/reduced-circulating-ch50-activity"
      }
    ],
    "genes": []
  }
}