{
  "url": "https://dantelabs.com/traits/hypoplastic-fingernail",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "hypoplastic-fingernail",
    "id": "HP:0001804",
    "name": "Small fingernail",
    "label": "Hypoplastic fingernail",
    "definition": "Underdevelopment of a fingernail.",
    "synonyms": [
      "Underdeveloped fingernail"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-integument",
        "name": "Abnormality of the integument",
        "url": "https://dantelabs.com/traits/abnormality-of-the-integument"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-fingernail-morphology",
        "name": "Abnormal fingernails",
        "url": "https://dantelabs.com/traits/abnormal-fingernail-morphology"
      },
      {
        "slug": "small-nail",
        "name": "Small nail",
        "url": "https://dantelabs.com/traits/small-nail"
      }
    ],
    "narrower": [
      {
        "slug": "hypoplastic-fifth-fingernail",
        "name": "Underdeveloped fifth fingernail",
        "genes": 14,
        "url": "https://dantelabs.com/traits/hypoplastic-fifth-fingernail"
      },
      {
        "slug": "hypoplastic-thumbnail",
        "name": "Small thumbnail",
        "genes": 2,
        "url": "https://dantelabs.com/traits/hypoplastic-thumbnail"
      }
    ],
    "genes": [
      {
        "slug": "eri1",
        "symbol": "ERI1",
        "hgnc": "HGNC:23994",
        "name": "exoribonuclease 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eri1"
      },
      {
        "slug": "fbxo28",
        "symbol": "FBXO28",
        "hgnc": "HGNC:29046",
        "name": "F-box protein 28",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fbxo28"
      },
      {
        "slug": "fgfr2",
        "symbol": "FGFR2",
        "hgnc": "HGNC:3689",
        "name": "fibroblast growth factor receptor 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fgfr2"
      },
      {
        "slug": "pigo",
        "symbol": "PIGO",
        "hgnc": "HGNC:23215",
        "name": "phosphatidylinositol glycan anchor biosynthesis class O",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pigo"
      },
      {
        "slug": "tbc1d24",
        "symbol": "TBC1D24",
        "hgnc": "HGNC:29203",
        "name": "TBC1 domain family member 24",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbc1d24"
      },
      {
        "slug": "hymai",
        "symbol": "HYMAI",
        "hgnc": "HGNC:5326",
        "name": "hydatidiform mole associated and imprinted",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hymai"
      },
      {
        "slug": "msx1",
        "symbol": "MSX1",
        "hgnc": "HGNC:7391",
        "name": "msh homeobox 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/msx1"
      },
      {
        "slug": "pign",
        "symbol": "PIGN",
        "hgnc": "HGNC:8967",
        "name": "phosphatidylinositol glycan anchor biosynthesis class N",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/pign"
      },
      {
        "slug": "plagl1",
        "symbol": "PLAGL1",
        "hgnc": "HGNC:9046",
        "name": "PLAG1 like zinc finger 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/plagl1"
      },
      {
        "slug": "plec",
        "symbol": "PLEC",
        "hgnc": "HGNC:9069",
        "name": "plectin",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/plec"
      },
      {
        "slug": "shox",
        "symbol": "SHOX",
        "hgnc": "HGNC:10853",
        "name": "SHOX homeobox",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/shox"
      },
      {
        "slug": "atp6v1b2",
        "symbol": "ATP6V1B2",
        "hgnc": "HGNC:854",
        "name": "ATPase H+ transporting V1 subunit B2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp6v1b2"
      },
      {
        "slug": "cenpt",
        "symbol": "CENPT",
        "hgnc": "HGNC:25787",
        "name": "centromere protein T",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cenpt"
      },
      {
        "slug": "col11a1",
        "symbol": "COL11A1",
        "hgnc": "HGNC:2186",
        "name": "collagen type XI alpha 1 chain",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/col11a1"
      },
      {
        "slug": "col11a2",
        "symbol": "COL11A2",
        "hgnc": "HGNC:2187",
        "name": "collagen type XI alpha 2 chain",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/col11a2"
      },
      {
        "slug": "kcnh1",
        "symbol": "KCNH1",
        "hgnc": "HGNC:6250",
        "name": "potassium voltage-gated channel subfamily H member 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/kcnh1"
      },
      {
        "slug": "kcnn3",
        "symbol": "KCNN3",
        "hgnc": "HGNC:6292",
        "name": "potassium calcium-activated channel subfamily N member 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kcnn3"
      },
      {
        "slug": "mbtps2",
        "symbol": "MBTPS2",
        "hgnc": "HGNC:15455",
        "name": "membrane bound transcription factor peptidase, site 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mbtps2"
      },
      {
        "slug": "pigf",
        "symbol": "PIGF",
        "hgnc": "HGNC:8962",
        "name": "phosphatidylinositol glycan anchor biosynthesis class F",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pigf"
      },
      {
        "slug": "rps6ka3",
        "symbol": "RPS6KA3",
        "hgnc": "HGNC:10432",
        "name": "ribosomal protein S6 kinase A3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rps6ka3"
      },
      {
        "slug": "arhgap31",
        "symbol": "ARHGAP31",
        "hgnc": "HGNC:29216",
        "name": "Rho GTPase activating protein 31",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/arhgap31"
      },
      {
        "slug": "ccdc22",
        "symbol": "CCDC22",
        "hgnc": "HGNC:28909",
        "name": "CCC complex scaffolding subunit CCDC22",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ccdc22"
      },
      {
        "slug": "cdkn1c",
        "symbol": "CDKN1C",
        "hgnc": "HGNC:1786",
        "name": "cyclin dependent kinase inhibitor 1C",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cdkn1c"
      },
      {
        "slug": "dll4",
        "symbol": "DLL4",
        "hgnc": "HGNC:2910",
        "name": "delta like canonical Notch ligand 4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dll4"
      },
      {
        "slug": "dock6",
        "symbol": "DOCK6",
        "hgnc": "HGNC:19189",
        "name": "dedicator of cytokinesis 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dock6"
      },
      {
        "slug": "dpysl5",
        "symbol": "DPYSL5",
        "hgnc": "HGNC:20637",
        "name": "dihydropyrimidinase like 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dpysl5"
      },
      {
        "slug": "eogt",
        "symbol": "EOGT",
        "hgnc": "HGNC:28526",
        "name": "EGF domain specific O-linked N-acetylglucosamine transferase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eogt"
      },
      {
        "slug": "hmga2",
        "symbol": "HMGA2",
        "hgnc": "HGNC:5009",
        "name": "high mobility group AT-hook 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hmga2"
      },
      {
        "slug": "igf2",
        "symbol": "IGF2",
        "hgnc": "HGNC:5466",
        "name": "insulin like growth factor 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/igf2"
      },
      {
        "slug": "notch1",
        "symbol": "NOTCH1",
        "hgnc": "HGNC:7881",
        "name": "notch receptor 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/notch1"
      },
      {
        "slug": "plag1",
        "symbol": "PLAG1",
        "hgnc": "HGNC:9045",
        "name": "PLAG1 zinc finger",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/plag1"
      },
      {
        "slug": "ptdss1",
        "symbol": "PTDSS1",
        "hgnc": "HGNC:9587",
        "name": "phosphatidylserine synthase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ptdss1"
      },
      {
        "slug": "rbpj",
        "symbol": "RBPJ",
        "hgnc": "HGNC:5724",
        "name": "recombination signal binding protein for immunoglobulin kappa J region",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rbpj"
      },
      {
        "slug": "twist2",
        "symbol": "TWIST2",
        "hgnc": "HGNC:20670",
        "name": "twist family bHLH transcription factor 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/twist2"
      },
      {
        "slug": "vps35l",
        "symbol": "VPS35L",
        "hgnc": "HGNC:24641",
        "name": "VPS35 endosomal protein sorting factor like",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vps35l"
      },
      {
        "slug": "washc5",
        "symbol": "WASHC5",
        "hgnc": "HGNC:28984",
        "name": "WASH complex subunit 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/washc5"
      },
      {
        "slug": "znf462",
        "symbol": "ZNF462",
        "hgnc": "HGNC:21684",
        "name": "zinc finger protein 462",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/znf462"
      },
      {
        "slug": "bmper",
        "symbol": "BMPER",
        "hgnc": "HGNC:24154",
        "name": "BMP binding endothelial regulator",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/bmper"
      },
      {
        "slug": "ror2",
        "symbol": "ROR2",
        "hgnc": "HGNC:10257",
        "name": "ROR family WNT receptor 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ror2"
      },
      {
        "slug": "tfap2a",
        "symbol": "TFAP2A",
        "hgnc": "HGNC:11742",
        "name": "transcription factor AP-2 alpha",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tfap2a"
      }
    ]
  }
}