{
  "url": "https://dantelabs.com/traits/hyperpigmented-nevi",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "hyperpigmented-nevi",
    "id": "HP:0007481",
    "name": "Hyperpigmented nevi",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-integument",
        "name": "Abnormality of the integument",
        "url": "https://dantelabs.com/traits/abnormality-of-the-integument"
      }
    ],
    "broader": [
      {
        "slug": "melanocytic-nevus",
        "name": "Beauty mark",
        "url": "https://dantelabs.com/traits/melanocytic-nevus"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "rbm28",
        "symbol": "RBM28",
        "hgnc": "HGNC:21863",
        "name": "RNA binding motif protein 28",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rbm28"
      },
      {
        "slug": "mc1r",
        "symbol": "MC1R",
        "hgnc": "HGNC:6929",
        "name": "melanocortin 1 receptor",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mc1r"
      },
      {
        "slug": "oca2",
        "symbol": "OCA2",
        "hgnc": "HGNC:8101",
        "name": "OCA2 melanosomal transmembrane protein",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/oca2"
      }
    ]
  }
}