{
  "url": "https://dantelabs.com/traits/ridged-nail",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "ridged-nail",
    "id": "HP:0001807",
    "name": "Grooved nails",
    "label": "Ridged nail",
    "definition": "Longitudinal, linear prominences in the nail plate.",
    "synonyms": [
      "Nail ridging",
      "Ridged nails",
      "Longitudinal ridging"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-integument",
        "name": "Abnormality of the integument",
        "url": "https://dantelabs.com/traits/abnormality-of-the-integument"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-nail-surface",
        "name": "Abnormal nail surface",
        "url": "https://dantelabs.com/traits/abnormal-nail-surface"
      }
    ],
    "narrower": [
      {
        "slug": "ridged-fingernail",
        "name": "Ridged fingernail",
        "genes": 8,
        "url": "https://dantelabs.com/traits/ridged-fingernail"
      }
    ],
    "genes": [
      {
        "slug": "lef1",
        "symbol": "LEF1",
        "hgnc": "HGNC:6551",
        "name": "lymphoid enhancer binding factor 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lef1"
      },
      {
        "slug": "porcn",
        "symbol": "PORCN",
        "hgnc": "HGNC:17652",
        "name": "porcupine O-acyltransferase",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/porcn"
      },
      {
        "slug": "foxn1",
        "symbol": "FOXN1",
        "hgnc": "HGNC:12765",
        "name": "forkhead box N1",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/foxn1"
      },
      {
        "slug": "atr",
        "symbol": "ATR",
        "hgnc": "HGNC:882",
        "name": "ATR checkpoint kinase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atr"
      },
      {
        "slug": "efnb1",
        "symbol": "EFNB1",
        "hgnc": "HGNC:3226",
        "name": "ephrin B1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/efnb1"
      },
      {
        "slug": "gja1",
        "symbol": "GJA1",
        "hgnc": "HGNC:4274",
        "name": "gap junction protein alpha 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gja1"
      },
      {
        "slug": "slc39a4",
        "symbol": "SLC39A4",
        "hgnc": "HGNC:17129",
        "name": "solute carrier family 39 member 4",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc39a4"
      },
      {
        "slug": "wnt10a",
        "symbol": "WNT10A",
        "hgnc": "HGNC:13829",
        "name": "Wnt family member 10A",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/wnt10a"
      },
      {
        "slug": "aars1",
        "symbol": "AARS1",
        "hgnc": "HGNC:20",
        "name": "alanyl-tRNA synthetase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aars1"
      },
      {
        "slug": "aqp5",
        "symbol": "AQP5",
        "hgnc": "HGNC:638",
        "name": "aquaporin 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aqp5"
      },
      {
        "slug": "cars1",
        "symbol": "CARS1",
        "hgnc": "HGNC:1493",
        "name": "cysteinyl-tRNA synthetase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cars1"
      },
      {
        "slug": "ctsk",
        "symbol": "CTSK",
        "hgnc": "HGNC:2536",
        "name": "cathepsin K",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ctsk"
      },
      {
        "slug": "dbr1",
        "symbol": "DBR1",
        "hgnc": "HGNC:15594",
        "name": "debranching RNA lariats 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dbr1"
      },
      {
        "slug": "edar",
        "symbol": "EDAR",
        "hgnc": "HGNC:2895",
        "name": "ectodysplasin A receptor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/edar"
      },
      {
        "slug": "edaradd",
        "symbol": "EDARADD",
        "hgnc": "HGNC:14341",
        "name": "EDAR associated via death domain",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/edaradd"
      },
      {
        "slug": "ercc2",
        "symbol": "ERCC2",
        "hgnc": "HGNC:3434",
        "name": "ERCC excision repair 2, TFIIH core complex helicase subunit",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ercc2"
      },
      {
        "slug": "ercc3",
        "symbol": "ERCC3",
        "hgnc": "HGNC:3435",
        "name": "ERCC excision repair 3, TFIIH core complex helicase subunit",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ercc3"
      },
      {
        "slug": "gtf2e2",
        "symbol": "GTF2E2",
        "hgnc": "HGNC:4651",
        "name": "general transcription factor IIE subunit 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gtf2e2"
      },
      {
        "slug": "gtf2h5",
        "symbol": "GTF2H5",
        "hgnc": "HGNC:21157",
        "name": "general transcription factor IIH subunit 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gtf2h5"
      },
      {
        "slug": "ikbkg",
        "symbol": "IKBKG",
        "hgnc": "HGNC:5961",
        "name": "inhibitor of nuclear factor kappa B kinase regulatory subunit gamma",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ikbkg"
      },
      {
        "slug": "krt14",
        "symbol": "KRT14",
        "hgnc": "HGNC:6416",
        "name": "keratin 14",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/krt14"
      },
      {
        "slug": "krt5",
        "symbol": "KRT5",
        "hgnc": "HGNC:6442",
        "name": "keratin 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/krt5"
      },
      {
        "slug": "lpar6",
        "symbol": "LPAR6",
        "hgnc": "HGNC:15520",
        "name": "lysophosphatidic acid receptor 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lpar6"
      },
      {
        "slug": "mplkip",
        "symbol": "MPLKIP",
        "hgnc": "HGNC:16002",
        "name": "M-phase specific PLK1 interacting protein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mplkip"
      },
      {
        "slug": "rnf113a",
        "symbol": "RNF113A",
        "hgnc": "HGNC:12974",
        "name": "ring finger protein 113A",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rnf113a"
      },
      {
        "slug": "tars1",
        "symbol": "TARS1",
        "hgnc": "HGNC:11572",
        "name": "threonyl-tRNA synthetase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tars1"
      },
      {
        "slug": "atp2a2",
        "symbol": "ATP2A2",
        "hgnc": "HGNC:812",
        "name": "ATPase sarcoplasmic/endoplasmic reticulum Ca2+ transporting 2",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/atp2a2"
      },
      {
        "slug": "dkc1",
        "symbol": "DKC1",
        "hgnc": "HGNC:2890",
        "name": "dyskerin pseudouridine synthase 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dkc1"
      },
      {
        "slug": "fermt1",
        "symbol": "FERMT1",
        "hgnc": "HGNC:15889",
        "name": "FERM domain containing kindlin 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fermt1"
      },
      {
        "slug": "lmx1b",
        "symbol": "LMX1B",
        "hgnc": "HGNC:6654",
        "name": "LIM homeobox transcription factor 1 beta",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmx1b"
      },
      {
        "slug": "msx1",
        "symbol": "MSX1",
        "hgnc": "HGNC:7391",
        "name": "msh homeobox 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/msx1"
      },
      {
        "slug": "terc",
        "symbol": "TERC",
        "hgnc": "HGNC:11727",
        "name": "telomerase RNA component",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/terc"
      },
      {
        "slug": "tert",
        "symbol": "TERT",
        "hgnc": "HGNC:11730",
        "name": "telomerase reverse transcriptase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tert"
      },
      {
        "slug": "tinf2",
        "symbol": "TINF2",
        "hgnc": "HGNC:11824",
        "name": "TERF1 interacting nuclear factor 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tinf2"
      }
    ]
  }
}