{
  "url": "https://dantelabs.com/traits/chronic-fatigue",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "chronic-fatigue",
    "id": "HP:0012432",
    "name": "Chronic fatigue",
    "definition": "Subjective feeling of tiredness characterized by a lack of energy and motivation that persists for six months or longer.",
    "synonyms": [
      "Chronic extreme exhaustion"
    ],
    "systems": [
      {
        "slug": "constitutional-symptom",
        "name": "Constitutional symptom",
        "url": "https://dantelabs.com/traits/constitutional-symptom"
      }
    ],
    "broader": [
      {
        "slug": "fatigue",
        "name": "Fatigue",
        "url": "https://dantelabs.com/traits/fatigue"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "aebp1",
        "symbol": "AEBP1",
        "hgnc": "HGNC:303",
        "name": "AE binding protein 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aebp1"
      },
      {
        "slug": "guk1",
        "symbol": "GUK1",
        "hgnc": "HGNC:4693",
        "name": "guanylate kinase 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/guk1"
      },
      {
        "slug": "nlrp3",
        "symbol": "NLRP3",
        "hgnc": "HGNC:16400",
        "name": "NLR family pyrin domain containing 3",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nlrp3"
      },
      {
        "slug": "psap",
        "symbol": "PSAP",
        "hgnc": "HGNC:9498",
        "name": "prosaposin",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/psap"
      },
      {
        "slug": "slc13a1",
        "symbol": "SLC13A1",
        "hgnc": "HGNC:10916",
        "name": "solute carrier family 13 member 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc13a1"
      },
      {
        "slug": "tgfbr1",
        "symbol": "TGFBR1",
        "hgnc": "HGNC:11772",
        "name": "transforming growth factor beta receptor 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tgfbr1"
      },
      {
        "slug": "brca1",
        "symbol": "BRCA1",
        "hgnc": "HGNC:1100",
        "name": "BRCA1 DNA repair associated",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/brca1"
      },
      {
        "slug": "brca2",
        "symbol": "BRCA2",
        "hgnc": "HGNC:1101",
        "name": "BRCA2 DNA repair associated",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/brca2"
      },
      {
        "slug": "cdkn2a",
        "symbol": "CDKN2A",
        "hgnc": "HGNC:1787",
        "name": "cyclin dependent kinase inhibitor 2A",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cdkn2a"
      },
      {
        "slug": "kras",
        "symbol": "KRAS",
        "hgnc": "HGNC:6407",
        "name": "KRas proto-oncogene, GTPase",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kras"
      },
      {
        "slug": "palb2",
        "symbol": "PALB2",
        "hgnc": "HGNC:26144",
        "name": "partner and localizer of BRCA2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/palb2"
      },
      {
        "slug": "palld",
        "symbol": "PALLD",
        "hgnc": "HGNC:17068",
        "name": "palladin, cytoskeletal associated protein",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/palld"
      },
      {
        "slug": "rabl3",
        "symbol": "RABL3",
        "hgnc": "HGNC:18072",
        "name": "RAB, member of RAS oncogene family like 3",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rabl3"
      },
      {
        "slug": "smad4",
        "symbol": "SMAD4",
        "hgnc": "HGNC:6770",
        "name": "SMAD family member 4",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/smad4"
      },
      {
        "slug": "tp53",
        "symbol": "TP53",
        "hgnc": "HGNC:11998",
        "name": "tumor protein p53",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tp53"
      },
      {
        "slug": "aldh4a1",
        "symbol": "ALDH4A1",
        "hgnc": "HGNC:406",
        "name": "aldehyde dehydrogenase 4 family member A1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aldh4a1"
      },
      {
        "slug": "eif2ak4",
        "symbol": "EIF2AK4",
        "hgnc": "HGNC:19687",
        "name": "eukaryotic translation initiation factor 2 alpha kinase 4",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eif2ak4"
      },
      {
        "slug": "mc2r",
        "symbol": "MC2R",
        "hgnc": "HGNC:6930",
        "name": "melanocortin 2 receptor",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mc2r"
      },
      {
        "slug": "mdm4",
        "symbol": "MDM4",
        "hgnc": "HGNC:6974",
        "name": "MDM4 regulator of p53",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mdm4"
      },
      {
        "slug": "mrap",
        "symbol": "MRAP",
        "hgnc": "HGNC:1304",
        "name": "melanocortin 2 receptor accessory protein",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mrap"
      },
      {
        "slug": "nnt",
        "symbol": "NNT",
        "hgnc": "HGNC:7863",
        "name": "nicotinamide nucleotide transhydrogenase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nnt"
      },
      {
        "slug": "smad2",
        "symbol": "SMAD2",
        "hgnc": "HGNC:6768",
        "name": "SMAD family member 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/smad2"
      },
      {
        "slug": "smad3",
        "symbol": "SMAD3",
        "hgnc": "HGNC:6769",
        "name": "SMAD family member 3",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/smad3"
      },
      {
        "slug": "star",
        "symbol": "STAR",
        "hgnc": "HGNC:11359",
        "name": "steroidogenic acute regulatory protein",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/star"
      },
      {
        "slug": "tfr2",
        "symbol": "TFR2",
        "hgnc": "HGNC:11762",
        "name": "transferrin receptor 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tfr2"
      },
      {
        "slug": "txnrd2",
        "symbol": "TXNRD2",
        "hgnc": "HGNC:18155",
        "name": "thioredoxin reductase 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/txnrd2"
      },
      {
        "slug": "ivns1abp",
        "symbol": "IVNS1ABP",
        "hgnc": "HGNC:16951",
        "name": "influenza virus NS1A binding protein",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ivns1abp"
      }
    ]
  }
}