{
  "url": "https://dantelabs.com/traits/monotonic-speech",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "monotonic-speech",
    "id": "HP:0031435",
    "name": "Monotonic speech",
    "definition": "A speech pattern characterized by a persistently abnormal lack of tone in the voice. Monotonic speech is typically ongoing, lasting throughout the day, but may have a diurnal variation in the pattern, i.e. slower at specific times of the day.",
    "synonyms": [
      "Flat speech"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-nervous-system",
        "name": "Abnormality of the nervous system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-nervous-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-intonation",
        "name": "Abnormal Intonation",
        "url": "https://dantelabs.com/traits/abnormal-intonation"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "cwf19l1",
        "symbol": "CWF19L1",
        "hgnc": "HGNC:25613",
        "name": "CWF19 like cell cycle control factor 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cwf19l1"
      },
      {
        "slug": "fbxo7",
        "symbol": "FBXO7",
        "hgnc": "HGNC:13586",
        "name": "F-box protein 7",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/fbxo7"
      },
      {
        "slug": "snca",
        "symbol": "SNCA",
        "hgnc": "HGNC:11138",
        "name": "synuclein alpha",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/snca"
      },
      {
        "slug": "dnajc13",
        "symbol": "DNAJC13",
        "hgnc": "HGNC:30343",
        "name": "DnaJ heat shock protein family (Hsp40) member C13",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dnajc13"
      },
      {
        "slug": "eif4g1",
        "symbol": "EIF4G1",
        "hgnc": "HGNC:3296",
        "name": "eukaryotic translation initiation factor 4 gamma 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eif4g1"
      },
      {
        "slug": "gba1",
        "symbol": "GBA1",
        "hgnc": "HGNC:4177",
        "name": "glucosylceramidase beta 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gba1"
      },
      {
        "slug": "gigyf2",
        "symbol": "GIGYF2",
        "hgnc": "HGNC:11960",
        "name": "GRB10 interacting GYF protein 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gigyf2"
      },
      {
        "slug": "lrrk2",
        "symbol": "LRRK2",
        "hgnc": "HGNC:18618",
        "name": "leucine rich repeat kinase 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lrrk2"
      },
      {
        "slug": "vps35",
        "symbol": "VPS35",
        "hgnc": "HGNC:13487",
        "name": "VPS35 retromer complex component",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vps35"
      }
    ]
  }
}