{
  "url": "https://dantelabs.com/traits/cor-triatriatum-sinister",
  "trait": {
    "bundleId": "2026.10.19-9814e911",
    "release": "2026-09-01",
    "slug": "cor-triatriatum-sinister",
    "id": "HP:0031134",
    "name": "Cor triatriatum sinister",
    "definition": "A developmental anomaly of the heart characterized by the presence of three atria because the left atrium is divided by an abnormal septum.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-cardiovascular-system",
        "name": "Abnormality of the cardiovascular system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-cardiovascular-system"
      }
    ],
    "broader": [
      {
        "slug": "cor-triatriatum",
        "name": "Cor triatriatum",
        "url": "https://dantelabs.com/traits/cor-triatriatum"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "tbx5",
        "symbol": "TBX5",
        "hgnc": "HGNC:11604",
        "name": "T-box transcription factor 5",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbx5"
      },
      {
        "slug": "myrf",
        "symbol": "MYRF",
        "hgnc": "HGNC:1181",
        "name": "myelin regulatory factor",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/myrf"
      }
    ]
  }
}