{
  "url": "https://dantelabs.com/traits/entropion",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "entropion",
    "id": "HP:0000621",
    "name": "Eyelid folded in",
    "label": "Entropion",
    "definition": "An abnormal inversion (turning inward) of the eyelid (usually the lower) towards the globe. Entropion is usually acquired as a result of involutional or cicatricial processes but may occasionally be congenital.",
    "synonyms": [
      "Eyelid turned in",
      "Inverted eyelid"
    ],
    "systems": [
      {
        "slug": "abnormality-of-head-or-neck",
        "name": "Abnormality of head or neck",
        "url": "https://dantelabs.com/traits/abnormality-of-head-or-neck"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-eyelid-morphology",
        "name": "Abnormality of the eyelid",
        "url": "https://dantelabs.com/traits/abnormal-eyelid-morphology"
      }
    ],
    "narrower": [
      {
        "slug": "upper-eyelid-entropion",
        "name": "Upper eyelid entropion",
        "genes": 1,
        "url": "https://dantelabs.com/traits/upper-eyelid-entropion"
      }
    ],
    "genes": [
      {
        "slug": "atp6v1e1",
        "symbol": "ATP6V1E1",
        "hgnc": "HGNC:857",
        "name": "ATPase H+ transporting V1 subunit E1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp6v1e1"
      },
      {
        "slug": "lmna",
        "symbol": "LMNA",
        "hgnc": "HGNC:6636",
        "name": "lamin A/C",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmna"
      },
      {
        "slug": "polr3a",
        "symbol": "POLR3A",
        "hgnc": "HGNC:30074",
        "name": "RNA polymerase III subunit A",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/polr3a"
      },
      {
        "slug": "zmpste24",
        "symbol": "ZMPSTE24",
        "hgnc": "HGNC:12877",
        "name": "zinc metallopeptidase STE24",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/zmpste24"
      },
      {
        "slug": "aldh1a3",
        "symbol": "ALDH1A3",
        "hgnc": "HGNC:409",
        "name": "aldehyde dehydrogenase 1 family member A3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aldh1a3"
      },
      {
        "slug": "atp6v1a",
        "symbol": "ATP6V1A",
        "hgnc": "HGNC:851",
        "name": "ATPase H+ transporting V1 subunit A",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp6v1a"
      },
      {
        "slug": "lrrc8c",
        "symbol": "LRRC8C",
        "hgnc": "HGNC:25075",
        "name": "leucine rich repeat containing 8 VRAC subunit C",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lrrc8c"
      },
      {
        "slug": "ddb2",
        "symbol": "DDB2",
        "hgnc": "HGNC:2718",
        "name": "damage specific DNA binding protein 2",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ddb2"
      },
      {
        "slug": "ercc2",
        "symbol": "ERCC2",
        "hgnc": "HGNC:3434",
        "name": "ERCC excision repair 2, TFIIH core complex helicase subunit",
        "frequency": "occasional",
        "diseases": 2,
        "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": "ercc4",
        "symbol": "ERCC4",
        "hgnc": "HGNC:3436",
        "name": "ERCC excision repair 4, endonuclease catalytic subunit",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ercc4"
      },
      {
        "slug": "ercc5",
        "symbol": "ERCC5",
        "hgnc": "HGNC:3437",
        "name": "ERCC excision repair 5, endonuclease",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ercc5"
      },
      {
        "slug": "hla-b",
        "symbol": "HLA-B",
        "hgnc": "HGNC:4932",
        "name": "major histocompatibility complex, class I, B",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hla-b"
      },
      {
        "slug": "ikzf1",
        "symbol": "IKZF1",
        "hgnc": "HGNC:13176",
        "name": "IKAROS family zinc finger 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ikzf1"
      },
      {
        "slug": "sephs1",
        "symbol": "SEPHS1",
        "hgnc": "HGNC:19685",
        "name": "selenophosphate synthetase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sephs1"
      },
      {
        "slug": "tp63",
        "symbol": "TP63",
        "hgnc": "HGNC:15979",
        "name": "tumor protein p63",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tp63"
      },
      {
        "slug": "xpa",
        "symbol": "XPA",
        "hgnc": "HGNC:12814",
        "name": "XPA, DNA damage recognition and repair factor",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/xpa"
      },
      {
        "slug": "xpc",
        "symbol": "XPC",
        "hgnc": "HGNC:12816",
        "name": "XPC complex subunit, DNA damage recognition and repair factor",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/xpc"
      },
      {
        "slug": "abca12",
        "symbol": "ABCA12",
        "hgnc": "HGNC:14637",
        "name": "ATP binding cassette subfamily A member 12",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/abca12"
      },
      {
        "slug": "alox12b",
        "symbol": "ALOX12B",
        "hgnc": "HGNC:430",
        "name": "arachidonate 12-lipoxygenase, 12R type",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/alox12b"
      },
      {
        "slug": "aloxe3",
        "symbol": "ALOXE3",
        "hgnc": "HGNC:13743",
        "name": "arachidonate epidermal lipoxygenase 3",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aloxe3"
      },
      {
        "slug": "asprv1",
        "symbol": "ASPRV1",
        "hgnc": "HGNC:26321",
        "name": "aspartic peptidase retroviral like 1",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/asprv1"
      },
      {
        "slug": "cyp4f22",
        "symbol": "CYP4F22",
        "hgnc": "HGNC:26820",
        "name": "cytochrome P450 family 4 subfamily F member 22",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cyp4f22"
      },
      {
        "slug": "lipn",
        "symbol": "LIPN",
        "hgnc": "HGNC:23452",
        "name": "lipase family member N",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lipn"
      },
      {
        "slug": "nipal4",
        "symbol": "NIPAL4",
        "hgnc": "HGNC:28018",
        "name": "NIPA like domain containing 4",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nipal4"
      },
      {
        "slug": "sdr9c7",
        "symbol": "SDR9C7",
        "hgnc": "HGNC:29958",
        "name": "short chain dehydrogenase/reductase family 9C member 7",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sdr9c7"
      },
      {
        "slug": "sult2b1",
        "symbol": "SULT2B1",
        "hgnc": "HGNC:11459",
        "name": "sulfotransferase family 2B member 1",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sult2b1"
      },
      {
        "slug": "tgm1",
        "symbol": "TGM1",
        "hgnc": "HGNC:11777",
        "name": "transglutaminase 1",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tgm1"
      },
      {
        "slug": "ercc6",
        "symbol": "ERCC6",
        "hgnc": "HGNC:3438",
        "name": "ERCC excision repair 6, chromatin remodeling factor",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ercc6"
      },
      {
        "slug": "gmnn",
        "symbol": "GMNN",
        "hgnc": "HGNC:17493",
        "name": "geminin DNA replication inhibitor",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gmnn"
      },
      {
        "slug": "polh",
        "symbol": "POLH",
        "hgnc": "HGNC:9181",
        "name": "DNA polymerase eta",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/polh"
      }
    ]
  }
}