{
  "url": "https://dantelabs.com/traits/mild-microcephaly",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "mild-microcephaly",
    "id": "HP:0040196",
    "name": "Mild microcephaly",
    "definition": "Decreased occipito-frontal (head) circumference (OFC). For the microcephaly OFC must be between -3 SD and -2 SD compared to appropriate, age matched, normal standards (i.e. -3 SD <= OFC < -2 SD).",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-head-or-neck",
        "name": "Abnormality of head or neck",
        "url": "https://dantelabs.com/traits/abnormality-of-head-or-neck"
      },
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      }
    ],
    "broader": [
      {
        "slug": "decreased-head-circumference",
        "name": "Decreased head circumference",
        "url": "https://dantelabs.com/traits/decreased-head-circumference"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "cwf19l1",
        "symbol": "CWF19L1",
        "hgnc": "HGNC:25613",
        "name": "CWF19 like cell cycle control factor 1",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/cwf19l1"
      },
      {
        "slug": "eefsec",
        "symbol": "EEFSEC",
        "hgnc": "HGNC:24614",
        "name": "eukaryotic elongation factor, selenocysteine-tRNA specific",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eefsec"
      },
      {
        "slug": "thoc6",
        "symbol": "THOC6",
        "hgnc": "HGNC:28369",
        "name": "THO complex subunit 6",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/thoc6"
      },
      {
        "slug": "grin2b",
        "symbol": "GRIN2B",
        "hgnc": "HGNC:4586",
        "name": "glutamate ionotropic receptor NMDA type subunit 2B",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/grin2b"
      },
      {
        "slug": "larp7",
        "symbol": "LARP7",
        "hgnc": "HGNC:24912",
        "name": "La ribonucleoprotein 7, transcriptional regulator",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/larp7"
      },
      {
        "slug": "ric1",
        "symbol": "RIC1",
        "hgnc": "HGNC:17686",
        "name": "RIC1 partner of RAB6A GEF complex",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ric1"
      },
      {
        "slug": "trappc9",
        "symbol": "TRAPPC9",
        "hgnc": "HGNC:30832",
        "name": "trafficking protein particle complex subunit 9",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/trappc9"
      },
      {
        "slug": "ube3a",
        "symbol": "UBE3A",
        "hgnc": "HGNC:12496",
        "name": "ubiquitin protein ligase E3A",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ube3a"
      },
      {
        "slug": "aspa",
        "symbol": "ASPA",
        "hgnc": "HGNC:756",
        "name": "aspartoacylase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aspa"
      },
      {
        "slug": "cep85l",
        "symbol": "CEP85L",
        "hgnc": "HGNC:21638",
        "name": "centrosomal protein 85L",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cep85l"
      },
      {
        "slug": "cog6",
        "symbol": "COG6",
        "hgnc": "HGNC:18621",
        "name": "component of oligomeric golgi complex 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cog6"
      },
      {
        "slug": "dhrs3",
        "symbol": "DHRS3",
        "hgnc": "HGNC:17693",
        "name": "dehydrogenase/reductase 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dhrs3"
      },
      {
        "slug": "lef1",
        "symbol": "LEF1",
        "hgnc": "HGNC:6551",
        "name": "lymphoid enhancer binding factor 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lef1"
      },
      {
        "slug": "oca2",
        "symbol": "OCA2",
        "hgnc": "HGNC:8101",
        "name": "OCA2 melanosomal transmembrane protein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/oca2"
      },
      {
        "slug": "sdha",
        "symbol": "SDHA",
        "hgnc": "HGNC:10680",
        "name": "succinate dehydrogenase complex flavoprotein subunit A",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sdha"
      },
      {
        "slug": "sdhaf1",
        "symbol": "SDHAF1",
        "hgnc": "HGNC:33867",
        "name": "succinate dehydrogenase complex assembly factor 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sdhaf1"
      },
      {
        "slug": "sdhb",
        "symbol": "SDHB",
        "hgnc": "HGNC:10681",
        "name": "succinate dehydrogenase complex iron sulfur subunit B",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sdhb"
      },
      {
        "slug": "sdhd",
        "symbol": "SDHD",
        "hgnc": "HGNC:10683",
        "name": "succinate dehydrogenase complex subunit D",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sdhd"
      },
      {
        "slug": "gata6",
        "symbol": "GATA6",
        "hgnc": "HGNC:4174",
        "name": "GATA binding protein 6",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gata6"
      }
    ]
  }
}