{
  "url": "https://dantelabs.com/traits/biliary-tract-abnormality",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "biliary-tract-abnormality",
    "id": "HP:0001080",
    "name": "Biliary tract abnormality",
    "definition": "An abnormality of the biliary tree.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-digestive-system",
        "name": "Abnormality of the digestive system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-digestive-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormality-of-the-biliary-system",
        "name": "Abnormality of the biliary system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-biliary-system"
      }
    ],
    "narrower": [
      {
        "slug": "abnormal-biliary-tract-morphology",
        "name": "Abnormal biliary tract morphology",
        "genes": 6,
        "url": "https://dantelabs.com/traits/abnormal-biliary-tract-morphology"
      }
    ],
    "genes": [
      {
        "slug": "abcc2",
        "symbol": "ABCC2",
        "hgnc": "HGNC:53",
        "name": "ATP binding cassette subfamily C member 2",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/abcc2"
      },
      {
        "slug": "hsd3b7",
        "symbol": "HSD3B7",
        "hgnc": "HGNC:18324",
        "name": "hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 7",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hsd3b7"
      },
      {
        "slug": "ugt1a1",
        "symbol": "UGT1A1",
        "hgnc": "HGNC:12530",
        "name": "UDP glucuronosyltransferase family 1 member A1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ugt1a1"
      },
      {
        "slug": "cplx1",
        "symbol": "CPLX1",
        "hgnc": "HGNC:2309",
        "name": "complexin 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cplx1"
      },
      {
        "slug": "ctbp1",
        "symbol": "CTBP1",
        "hgnc": "HGNC:2494",
        "name": "C-terminal binding protein 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctbp1"
      },
      {
        "slug": "fgfrl1",
        "symbol": "FGFRL1",
        "hgnc": "HGNC:3693",
        "name": "fibroblast growth factor receptor like 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fgfrl1"
      },
      {
        "slug": "letm1",
        "symbol": "LETM1",
        "hgnc": "HGNC:6556",
        "name": "leucine zipper and EF-hand containing transmembrane protein 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/letm1"
      },
      {
        "slug": "nsd2",
        "symbol": "NSD2",
        "hgnc": "HGNC:12766",
        "name": "nuclear receptor binding SET domain protein 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nsd2"
      },
      {
        "slug": "arl6",
        "symbol": "ARL6",
        "hgnc": "HGNC:13210",
        "name": "ARF like GTPase 6",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/arl6"
      },
      {
        "slug": "b3glct",
        "symbol": "B3GLCT",
        "hgnc": "HGNC:20207",
        "name": "beta 3-glucosyltransferase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/b3glct"
      },
      {
        "slug": "bbs1",
        "symbol": "BBS1",
        "hgnc": "HGNC:966",
        "name": "Bardet-Biedl syndrome 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/bbs1"
      },
      {
        "slug": "ccdc28b",
        "symbol": "CCDC28B",
        "hgnc": "HGNC:28163",
        "name": "coiled-coil domain containing 28B",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ccdc28b"
      },
      {
        "slug": "ciita",
        "symbol": "CIITA",
        "hgnc": "HGNC:7067",
        "name": "class II major histocompatibility complex transactivator",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ciita"
      },
      {
        "slug": "esco2",
        "symbol": "ESCO2",
        "hgnc": "HGNC:27230",
        "name": "establishment of sister chromatid cohesion N-acetyltransferase 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/esco2"
      },
      {
        "slug": "hnf1b",
        "symbol": "HNF1B",
        "hgnc": "HGNC:11630",
        "name": "HNF1 homeobox B",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hnf1b"
      },
      {
        "slug": "stk11",
        "symbol": "STK11",
        "hgnc": "HGNC:11389",
        "name": "serine/threonine kinase 11",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stk11"
      }
    ]
  }
}