{
  "url": "https://dantelabs.com/traits/cardiac-conduction-abnormality",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "cardiac-conduction-abnormality",
    "id": "HP:0031546",
    "name": "Cardiac conduction abnormality",
    "definition": "Any anomaly of the progression of electrical impulses through the heart.",
    "synonyms": [
      "Abnormality of cardiac conduction",
      "Abnormality of cardiac conduction system",
      "Cardiac conduction abnormalities",
      "Cardiac conduction defects",
      "Heart conduction disorder"
    ],
    "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": "abnormality-of-cardiovascular-system-electrophysiology",
        "name": "Abnormality of cardiovascular system electrophysiology",
        "url": "https://dantelabs.com/traits/abnormality-of-cardiovascular-system-electrophysiology"
      }
    ],
    "narrower": [
      {
        "slug": "heart-block",
        "name": "Heart block",
        "genes": 14,
        "url": "https://dantelabs.com/traits/heart-block"
      },
      {
        "slug": "abnormal-atrioventricular-conduction",
        "name": "Abnormal atrioventricular conduction",
        "genes": 8,
        "url": "https://dantelabs.com/traits/abnormal-atrioventricular-conduction"
      }
    ],
    "genes": [
      {
        "slug": "lmna",
        "symbol": "LMNA",
        "hgnc": "HGNC:6636",
        "name": "lamin A/C",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmna"
      },
      {
        "slug": "nppa",
        "symbol": "NPPA",
        "hgnc": "HGNC:7939",
        "name": "natriuretic peptide A",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nppa"
      },
      {
        "slug": "scn5a",
        "symbol": "SCN5A",
        "hgnc": "HGNC:10593",
        "name": "sodium voltage-gated channel alpha subunit 5",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/scn5a"
      },
      {
        "slug": "acta1",
        "symbol": "ACTA1",
        "hgnc": "HGNC:129",
        "name": "actin alpha 1, skeletal muscle",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/acta1"
      },
      {
        "slug": "cited2",
        "symbol": "CITED2",
        "hgnc": "HGNC:1987",
        "name": "Cbp/p300 interacting transactivator with ED-rich tail 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cited2"
      },
      {
        "slug": "selenon",
        "symbol": "SELENON",
        "hgnc": "HGNC:15999",
        "name": "selenoprotein N",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/selenon"
      },
      {
        "slug": "tbx5",
        "symbol": "TBX5",
        "hgnc": "HGNC:11604",
        "name": "T-box transcription factor 5",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbx5"
      },
      {
        "slug": "atp1a2",
        "symbol": "ATP1A2",
        "hgnc": "HGNC:800",
        "name": "ATPase Na+/K+ transporting subunit alpha 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp1a2"
      },
      {
        "slug": "atp1a3",
        "symbol": "ATP1A3",
        "hgnc": "HGNC:801",
        "name": "ATPase Na+/K+ transporting subunit alpha 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp1a3"
      },
      {
        "slug": "cacna1a",
        "symbol": "CACNA1A",
        "hgnc": "HGNC:1388",
        "name": "calcium voltage-gated channel subunit alpha1 A",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cacna1a"
      },
      {
        "slug": "cnbp",
        "symbol": "CNBP",
        "hgnc": "HGNC:13164",
        "name": "CCHC-type zinc finger nucleic acid binding protein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cnbp"
      },
      {
        "slug": "crebbp",
        "symbol": "CREBBP",
        "hgnc": "HGNC:2348",
        "name": "CREB binding lysine acetyltransferase",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/crebbp"
      },
      {
        "slug": "ep300",
        "symbol": "EP300",
        "hgnc": "HGNC:3373",
        "name": "EP300 lysine acetyltransferase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ep300"
      },
      {
        "slug": "mt-atp6",
        "symbol": "MT-ATP6",
        "hgnc": "HGNC:7414",
        "name": "mitochondrially encoded ATP synthase membrane subunit 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-atp6"
      },
      {
        "slug": "mt-co1",
        "symbol": "MT-CO1",
        "hgnc": "HGNC:7419",
        "name": "mitochondrially encoded cytochrome c oxidase I",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-co1"
      },
      {
        "slug": "mt-co2",
        "symbol": "MT-CO2",
        "hgnc": "HGNC:7421",
        "name": "mitochondrially encoded cytochrome c oxidase II",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-co2"
      },
      {
        "slug": "mt-co3",
        "symbol": "MT-CO3",
        "hgnc": "HGNC:7422",
        "name": "mitochondrially encoded cytochrome c oxidase III",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-co3"
      },
      {
        "slug": "mt-nd1",
        "symbol": "MT-ND1",
        "hgnc": "HGNC:7455",
        "name": "mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 1",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mt-nd1"
      },
      {
        "slug": "mt-nd2",
        "symbol": "MT-ND2",
        "hgnc": "HGNC:7456",
        "name": "mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-nd2"
      },
      {
        "slug": "mt-nd3",
        "symbol": "MT-ND3",
        "hgnc": "HGNC:7458",
        "name": "mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-nd3"
      },
      {
        "slug": "mt-nd4",
        "symbol": "MT-ND4",
        "hgnc": "HGNC:7459",
        "name": "mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 4",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mt-nd4"
      },
      {
        "slug": "mt-nd5",
        "symbol": "MT-ND5",
        "hgnc": "HGNC:7461",
        "name": "mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 5",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mt-nd5"
      },
      {
        "slug": "mt-nd6",
        "symbol": "MT-ND6",
        "hgnc": "HGNC:7462",
        "name": "mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 6",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mt-nd6"
      },
      {
        "slug": "mt-tf",
        "symbol": "MT-TF",
        "hgnc": "HGNC:7481",
        "name": "mitochondrially encoded tRNA-Phe (UUU/C)",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-tf"
      },
      {
        "slug": "mt-th",
        "symbol": "MT-TH",
        "hgnc": "HGNC:7487",
        "name": "mitochondrially encoded tRNA-His (CAU/C)",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-th"
      },
      {
        "slug": "mt-tk",
        "symbol": "MT-TK",
        "hgnc": "HGNC:7489",
        "name": "mitochondrially encoded tRNA-Lys (AAA/G)",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-tk"
      },
      {
        "slug": "mt-tl1",
        "symbol": "MT-TL1",
        "hgnc": "HGNC:7490",
        "name": "mitochondrially encoded tRNA-Leu (UUA/G) 1",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mt-tl1"
      },
      {
        "slug": "mt-tl2",
        "symbol": "MT-TL2",
        "hgnc": "HGNC:7491",
        "name": "mitochondrially encoded tRNA-Leu (CUN) 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-tl2"
      },
      {
        "slug": "mt-tq",
        "symbol": "MT-TQ",
        "hgnc": "HGNC:7495",
        "name": "mitochondrially encoded tRNA-Gln (CAA/G)",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-tq"
      },
      {
        "slug": "mt-ts1",
        "symbol": "MT-TS1",
        "hgnc": "HGNC:7497",
        "name": "mitochondrially encoded tRNA-Ser (UCN) 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-ts1"
      },
      {
        "slug": "mt-ts2",
        "symbol": "MT-TS2",
        "hgnc": "HGNC:7498",
        "name": "mitochondrially encoded tRNA-Ser (AGU/C) 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-ts2"
      },
      {
        "slug": "mt-tv",
        "symbol": "MT-TV",
        "hgnc": "HGNC:7500",
        "name": "mitochondrially encoded tRNA-Val (GUN)",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mt-tv"
      },
      {
        "slug": "mt-tw",
        "symbol": "MT-TW",
        "hgnc": "HGNC:7501",
        "name": "mitochondrially encoded tRNA-Trp (UGA/G)",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mt-tw"
      },
      {
        "slug": "rhobtb2",
        "symbol": "RHOBTB2",
        "hgnc": "HGNC:18756",
        "name": "Rho related BTB domain containing 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rhobtb2"
      },
      {
        "slug": "scn2a",
        "symbol": "SCN2A",
        "hgnc": "HGNC:10588",
        "name": "sodium voltage-gated channel alpha subunit 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/scn2a"
      },
      {
        "slug": "slc1a3",
        "symbol": "SLC1A3",
        "hgnc": "HGNC:10941",
        "name": "solute carrier family 1 member 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc1a3"
      },
      {
        "slug": "slc2a1",
        "symbol": "SLC2A1",
        "hgnc": "HGNC:11005",
        "name": "solute carrier family 2 member 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc2a1"
      },
      {
        "slug": "clcn1",
        "symbol": "CLCN1",
        "hgnc": "HGNC:2019",
        "name": "chloride voltage-gated channel 1",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/clcn1"
      }
    ]
  }
}