{
  "url": "https://dantelabs.com/traits/underdeveloped-tragus",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "underdeveloped-tragus",
    "id": "HP:0011272",
    "name": "Underdeveloped tragus",
    "definition": "Decreased posterolateral protrusion of the tragus.",
    "synonyms": [
      "Hypoplastic tragus",
      "Hypotrophic tragus",
      "Small tragus"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-ear",
        "name": "Abnormality of the ear",
        "url": "https://dantelabs.com/traits/abnormality-of-the-ear"
      }
    ],
    "broader": [
      {
        "slug": "aplasia-hypoplasia-of-the-tragus",
        "name": "Absent/small tragus",
        "url": "https://dantelabs.com/traits/aplasia-hypoplasia-of-the-tragus"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "nup188",
        "symbol": "NUP188",
        "hgnc": "HGNC:17859",
        "name": "nucleoporin 188",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nup188"
      },
      {
        "slug": "rap1b",
        "symbol": "RAP1B",
        "hgnc": "HGNC:9857",
        "name": "RAP1B, member of RAS oncogene family",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rap1b"
      },
      {
        "slug": "eftud2",
        "symbol": "EFTUD2",
        "hgnc": "HGNC:30858",
        "name": "elongation factor Tu GTP binding domain containing 2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eftud2"
      },
      {
        "slug": "kctd1",
        "symbol": "KCTD1",
        "hgnc": "HGNC:18249",
        "name": "potassium channel tetramerization domain containing 1",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/kctd1"
      },
      {
        "slug": "kat6a",
        "symbol": "KAT6A",
        "hgnc": "HGNC:13013",
        "name": "lysine acetyltransferase 6A",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kat6a"
      },
      {
        "slug": "sf3b2",
        "symbol": "SF3B2",
        "hgnc": "HGNC:10769",
        "name": "splicing factor 3b subunit 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sf3b2"
      },
      {
        "slug": "gli2",
        "symbol": "GLI2",
        "hgnc": "HGNC:4318",
        "name": "GLI family zinc finger 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gli2"
      }
    ]
  }
}