{
  "url": "https://dantelabs.com/traits/horizontal-eyebrow",
  "trait": {
    "bundleId": "2026.10.16-c6eea6bf",
    "release": "2026-09-01",
    "slug": "horizontal-eyebrow",
    "id": "HP:0011228",
    "name": "Horizontal eyebrow",
    "definition": "An eyebrow that extends straight across the brow, without curve.",
    "synonyms": [
      "Flat eyebrow",
      "Lack of eyebrow arch",
      "Lack of eyebrow curvature",
      "Straight eyebrow",
      "Straight eyebrows"
    ],
    "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-integument",
        "name": "Abnormality of the integument",
        "url": "https://dantelabs.com/traits/abnormality-of-the-integument"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-eyebrow-morphology",
        "name": "Abnormality of the eyebrow",
        "url": "https://dantelabs.com/traits/abnormal-eyebrow-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "col18a1",
        "symbol": "COL18A1",
        "hgnc": "HGNC:2195",
        "name": "collagen type XVIII alpha 1 chain",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/col18a1"
      },
      {
        "slug": "deaf1",
        "symbol": "DEAF1",
        "hgnc": "HGNC:14677",
        "name": "DEAF1 transcription factor",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/deaf1"
      },
      {
        "slug": "dnmt3a",
        "symbol": "DNMT3A",
        "hgnc": "HGNC:2978",
        "name": "DNA methyltransferase 3 alpha",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dnmt3a"
      },
      {
        "slug": "kcnk4",
        "symbol": "KCNK4",
        "hgnc": "HGNC:6279",
        "name": "potassium two pore domain channel subfamily K member 4",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kcnk4"
      },
      {
        "slug": "rnu5b-1",
        "symbol": "RNU5B-1",
        "hgnc": "HGNC:10212",
        "name": "RNA, U5B small nuclear 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rnu5b-1"
      },
      {
        "slug": "actb",
        "symbol": "ACTB",
        "hgnc": "HGNC:132",
        "name": "actin beta",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/actb"
      },
      {
        "slug": "casz1",
        "symbol": "CASZ1",
        "hgnc": "HGNC:26002",
        "name": "castor zinc finger 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/casz1"
      },
      {
        "slug": "gabrd",
        "symbol": "GABRD",
        "hgnc": "HGNC:4084",
        "name": "gamma-aminobutyric acid type A receptor subunit delta",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gabrd"
      },
      {
        "slug": "hspg2",
        "symbol": "HSPG2",
        "hgnc": "HGNC:5273",
        "name": "heparan sulfate proteoglycan 2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hspg2"
      },
      {
        "slug": "kcnab2",
        "symbol": "KCNAB2",
        "hgnc": "HGNC:6229",
        "name": "potassium voltage-gated channel subfamily A regulatory beta subunit 2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kcnab2"
      },
      {
        "slug": "luzp1",
        "symbol": "LUZP1",
        "hgnc": "HGNC:14985",
        "name": "leucine zipper protein 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/luzp1"
      },
      {
        "slug": "mmp23b",
        "symbol": "MMP23B",
        "hgnc": "HGNC:7171",
        "name": "matrix metallopeptidase 23B",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mmp23b"
      },
      {
        "slug": "pdpn",
        "symbol": "PDPN",
        "hgnc": "HGNC:29602",
        "name": "podoplanin",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pdpn"
      },
      {
        "slug": "prdm16",
        "symbol": "PRDM16",
        "hgnc": "HGNC:14000",
        "name": "PR/SET domain 16",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prdm16"
      },
      {
        "slug": "prkcz",
        "symbol": "PRKCZ",
        "hgnc": "HGNC:9412",
        "name": "protein kinase C zeta",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prkcz"
      },
      {
        "slug": "rere",
        "symbol": "RERE",
        "hgnc": "HGNC:9965",
        "name": "arginine-glutamic acid dipeptide repeats",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rere"
      },
      {
        "slug": "ski",
        "symbol": "SKI",
        "hgnc": "HGNC:10896",
        "name": "SKI proto-oncogene",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ski"
      },
      {
        "slug": "spen",
        "symbol": "SPEN",
        "hgnc": "HGNC:17575",
        "name": "spen family transcriptional repressor",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/spen"
      },
      {
        "slug": "ube4b",
        "symbol": "UBE4B",
        "hgnc": "HGNC:12500",
        "name": "ubiquitination factor E4B",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ube4b"
      },
      {
        "slug": "adam17",
        "symbol": "ADAM17",
        "hgnc": "HGNC:195",
        "name": "ADAM metallopeptidase domain 17",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/adam17"
      },
      {
        "slug": "ahdc1",
        "symbol": "AHDC1",
        "hgnc": "HGNC:25230",
        "name": "AT-hook DNA binding motif containing 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ahdc1"
      },
      {
        "slug": "cdk19",
        "symbol": "CDK19",
        "hgnc": "HGNC:19338",
        "name": "cyclin dependent kinase 19",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cdk19"
      },
      {
        "slug": "cnot2",
        "symbol": "CNOT2",
        "hgnc": "HGNC:7878",
        "name": "CCR4-NOT transcription complex subunit 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cnot2"
      },
      {
        "slug": "ddb1",
        "symbol": "DDB1",
        "hgnc": "HGNC:2717",
        "name": "damage specific DNA binding protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ddb1"
      },
      {
        "slug": "ebf3",
        "symbol": "EBF3",
        "hgnc": "HGNC:19087",
        "name": "EBF transcription factor 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ebf3"
      },
      {
        "slug": "heatr3",
        "symbol": "HEATR3",
        "hgnc": "HGNC:26087",
        "name": "HEAT repeat containing 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/heatr3"
      },
      {
        "slug": "ints1",
        "symbol": "INTS1",
        "hgnc": "HGNC:24555",
        "name": "integrator complex subunit 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ints1"
      },
      {
        "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": "gnb2",
        "symbol": "GNB2",
        "hgnc": "HGNC:4398",
        "name": "G protein subunit beta 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gnb2"
      },
      {
        "slug": "h4c5",
        "symbol": "H4C5",
        "hgnc": "HGNC:4790",
        "name": "H4 clustered histone 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/h4c5"
      },
      {
        "slug": "med13l",
        "symbol": "MED13L",
        "hgnc": "HGNC:22962",
        "name": "mediator complex subunit 13L",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/med13l"
      },
      {
        "slug": "ralgapa1",
        "symbol": "RALGAPA1",
        "hgnc": "HGNC:17770",
        "name": "Ral GTPase activating protein catalytic subunit alpha 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ralgapa1"
      },
      {
        "slug": "rnu4-2",
        "symbol": "RNU4-2",
        "hgnc": "HGNC:10193",
        "name": "RNA, U4 small nuclear 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rnu4-2"
      },
      {
        "slug": "syt1",
        "symbol": "SYT1",
        "hgnc": "HGNC:11509",
        "name": "synaptotagmin 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/syt1"
      },
      {
        "slug": "foxp2",
        "symbol": "FOXP2",
        "hgnc": "HGNC:13875",
        "name": "forkhead box P2",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/foxp2"
      },
      {
        "slug": "rala",
        "symbol": "RALA",
        "hgnc": "HGNC:9839",
        "name": "RAS like proto-oncogene A",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rala"
      }
    ]
  }
}