{
  "url": "https://dantelabs.com/traits/overriding-aorta",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "overriding-aorta",
    "id": "HP:0002623",
    "name": "Overriding aorta",
    "definition": "An overriding aorta is a congenital heart defect where the aorta is positioned directly over a ventricular septal defect, instead of over the left ventricle. The result is that the aorta receives some blood from the right ventricle, which reduces the amount of oxygen in the blood. It is one of the four conditions of the Tetralogy of Fallot. The aortic root can be displaced toward the front (anteriorly) or directly above the septal defect, but it is always abnormally located to the right of the root of the pulmonary artery. The degree of override is quite variable, with 5-95% of the valve being connected to the right ventricle.",
    "synonyms": [
      "Dextroposition of aorta",
      "Overriding aortic valve"
    ],
    "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": "abnormal-aortic-morphology",
        "name": "Abnormal aortic morphology",
        "url": "https://dantelabs.com/traits/abnormal-aortic-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "lars2",
        "symbol": "LARS2",
        "hgnc": "HGNC:17095",
        "name": "leucyl-tRNA synthetase 2, mitochondrial",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lars2"
      },
      {
        "slug": "chd7",
        "symbol": "CHD7",
        "hgnc": "HGNC:20626",
        "name": "chromodomain helicase DNA binding protein 7",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/chd7"
      },
      {
        "slug": "baz1b",
        "symbol": "BAZ1B",
        "hgnc": "HGNC:961",
        "name": "bromodomain adjacent to zinc finger domain 1B",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/baz1b"
      },
      {
        "slug": "bud23",
        "symbol": "BUD23",
        "hgnc": "HGNC:16405",
        "name": "BUD23 rRNA methyltransferase and ribosome maturation factor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/bud23"
      },
      {
        "slug": "clip2",
        "symbol": "CLIP2",
        "hgnc": "HGNC:2586",
        "name": "CAP-Gly domain containing linker protein 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/clip2"
      },
      {
        "slug": "dnajc30",
        "symbol": "DNAJC30",
        "hgnc": "HGNC:16410",
        "name": "DnaJ heat shock protein family (Hsp40) member C30",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dnajc30"
      },
      {
        "slug": "eif4h",
        "symbol": "EIF4H",
        "hgnc": "HGNC:12741",
        "name": "eukaryotic translation initiation factor 4H",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eif4h"
      },
      {
        "slug": "eln",
        "symbol": "ELN",
        "hgnc": "HGNC:3327",
        "name": "elastin",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eln"
      },
      {
        "slug": "fkbp6",
        "symbol": "FKBP6",
        "hgnc": "HGNC:3722",
        "name": "FKBP prolyl isomerase family member 6 (inactive)",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fkbp6"
      },
      {
        "slug": "gtf2i",
        "symbol": "GTF2I",
        "hgnc": "HGNC:4659",
        "name": "general transcription factor IIi",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gtf2i"
      },
      {
        "slug": "gtf2ird1",
        "symbol": "GTF2IRD1",
        "hgnc": "HGNC:4661",
        "name": "GTF2I repeat domain containing 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gtf2ird1"
      },
      {
        "slug": "gtf2ird2",
        "symbol": "GTF2IRD2",
        "hgnc": "HGNC:30775",
        "name": "GTF2I repeat domain containing 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gtf2ird2"
      },
      {
        "slug": "limk1",
        "symbol": "LIMK1",
        "hgnc": "HGNC:6613",
        "name": "LIM domain kinase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/limk1"
      },
      {
        "slug": "mettl27",
        "symbol": "METTL27",
        "hgnc": "HGNC:19068",
        "name": "methyltransferase like 27",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mettl27"
      },
      {
        "slug": "ncf1",
        "symbol": "NCF1",
        "hgnc": "HGNC:7660",
        "name": "neutrophil cytosolic factor 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ncf1"
      },
      {
        "slug": "nek9",
        "symbol": "NEK9",
        "hgnc": "HGNC:18591",
        "name": "NIMA related kinase 9",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nek9"
      },
      {
        "slug": "rai1",
        "symbol": "RAI1",
        "hgnc": "HGNC:9834",
        "name": "retinoic acid induced 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rai1"
      },
      {
        "slug": "rfc2",
        "symbol": "RFC2",
        "hgnc": "HGNC:9970",
        "name": "replication factor C subunit 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rfc2"
      },
      {
        "slug": "stx1a",
        "symbol": "STX1A",
        "hgnc": "HGNC:11433",
        "name": "syntaxin 1A",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stx1a"
      },
      {
        "slug": "tbl2",
        "symbol": "TBL2",
        "hgnc": "HGNC:11586",
        "name": "transducin beta like 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbl2"
      },
      {
        "slug": "tmem270",
        "symbol": "TMEM270",
        "hgnc": "HGNC:23018",
        "name": "transmembrane protein 270",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tmem270"
      },
      {
        "slug": "vps37d",
        "symbol": "VPS37D",
        "hgnc": "HGNC:18287",
        "name": "VPS37D subunit of ESCRT-I",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vps37d"
      },
      {
        "slug": "cox7b",
        "symbol": "COX7B",
        "hgnc": "HGNC:2291",
        "name": "cytochrome c oxidase subunit 7B",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cox7b"
      },
      {
        "slug": "fgfr2",
        "symbol": "FGFR2",
        "hgnc": "HGNC:3689",
        "name": "fibroblast growth factor receptor 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fgfr2"
      },
      {
        "slug": "hccs",
        "symbol": "HCCS",
        "hgnc": "HGNC:4837",
        "name": "holocytochrome c synthase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hccs"
      },
      {
        "slug": "ndufb11",
        "symbol": "NDUFB11",
        "hgnc": "HGNC:20372",
        "name": "NADH:ubiquinone oxidoreductase subunit B11",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ndufb11"
      },
      {
        "slug": "tgds",
        "symbol": "TGDS",
        "hgnc": "HGNC:20324",
        "name": "TDP-glucose 4,6-dehydratase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tgds"
      }
    ]
  }
}