{
  "url": "https://dantelabs.com/traits/bundle-branch-block",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "bundle-branch-block",
    "id": "HP:0011710",
    "name": "Bundle branch block",
    "definition": "Block of conduction of electrical impulses along the Bundle of His or along one of its bundle branches.",
    "synonyms": [
      "Bundle-branch block"
    ],
    "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": "heart-block",
        "name": "Heart block",
        "url": "https://dantelabs.com/traits/heart-block"
      }
    ],
    "narrower": [
      {
        "slug": "complete-right-bundle-branch-block",
        "name": "Complete right bundle branch block",
        "genes": 58,
        "url": "https://dantelabs.com/traits/complete-right-bundle-branch-block"
      },
      {
        "slug": "trifascicular-block",
        "name": "Trifascicular block",
        "genes": 22,
        "url": "https://dantelabs.com/traits/trifascicular-block"
      },
      {
        "slug": "left-bundle-branch-block",
        "name": "Left bundle branch block",
        "genes": 16,
        "url": "https://dantelabs.com/traits/left-bundle-branch-block"
      },
      {
        "slug": "incomplete-right-bundle-branch-block",
        "name": "Incomplete right bundle branch block",
        "genes": 2,
        "url": "https://dantelabs.com/traits/incomplete-right-bundle-branch-block"
      }
    ],
    "genes": [
      {
        "slug": "braf",
        "symbol": "BRAF",
        "hgnc": "HGNC:1097",
        "name": "B-Raf proto-oncogene, serine/threonine kinase",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/braf"
      },
      {
        "slug": "nkx2-5",
        "symbol": "NKX2-5",
        "hgnc": "HGNC:2488",
        "name": "NK2 homeobox 5",
        "frequency": "very-frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/nkx2-5"
      },
      {
        "slug": "ptpn11",
        "symbol": "PTPN11",
        "hgnc": "HGNC:9644",
        "name": "protein tyrosine phosphatase non-receptor type 11",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ptpn11"
      },
      {
        "slug": "raf1",
        "symbol": "RAF1",
        "hgnc": "HGNC:9829",
        "name": "Raf-1 proto-oncogene, serine/threonine kinase",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/raf1"
      },
      {
        "slug": "dmpk",
        "symbol": "DMPK",
        "hgnc": "HGNC:2933",
        "name": "DM1 protein kinase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dmpk"
      },
      {
        "slug": "gla",
        "symbol": "GLA",
        "hgnc": "HGNC:4296",
        "name": "galactosidase alpha",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gla"
      },
      {
        "slug": "gpc3",
        "symbol": "GPC3",
        "hgnc": "HGNC:4451",
        "name": "glypican 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gpc3"
      },
      {
        "slug": "gpc4",
        "symbol": "GPC4",
        "hgnc": "HGNC:4452",
        "name": "glypican 4",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gpc4"
      },
      {
        "slug": "scn1b",
        "symbol": "SCN1B",
        "hgnc": "HGNC:10586",
        "name": "sodium voltage-gated channel beta subunit 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/scn1b"
      },
      {
        "slug": "scn5a",
        "symbol": "SCN5A",
        "hgnc": "HGNC:10593",
        "name": "sodium voltage-gated channel alpha subunit 5",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/scn5a"
      },
      {
        "slug": "trpm4",
        "symbol": "TRPM4",
        "hgnc": "HGNC:17993",
        "name": "transient receptor potential cation channel subfamily M member 4",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/trpm4"
      },
      {
        "slug": "actc1",
        "symbol": "ACTC1",
        "hgnc": "HGNC:143",
        "name": "actin alpha cardiac muscle 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/actc1"
      },
      {
        "slug": "cited2",
        "symbol": "CITED2",
        "hgnc": "HGNC:1987",
        "name": "Cbp/p300 interacting transactivator with ED-rich tail 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cited2"
      },
      {
        "slug": "gata4",
        "symbol": "GATA4",
        "hgnc": "HGNC:4173",
        "name": "GATA binding protein 4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gata4"
      },
      {
        "slug": "gata6",
        "symbol": "GATA6",
        "hgnc": "HGNC:4174",
        "name": "GATA binding protein 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gata6"
      },
      {
        "slug": "myh6",
        "symbol": "MYH6",
        "hgnc": "HGNC:7576",
        "name": "myosin heavy chain 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/myh6"
      },
      {
        "slug": "tbx20",
        "symbol": "TBX20",
        "hgnc": "HGNC:11598",
        "name": "T-box transcription factor 20",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbx20"
      },
      {
        "slug": "tll1",
        "symbol": "TLL1",
        "hgnc": "HGNC:11843",
        "name": "tolloid like 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tll1"
      }
    ]
  }
}