{
  "url": "https://dantelabs.com/traits/prolonged-prothrombin-time",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "prolonged-prothrombin-time",
    "id": "HP:0008151",
    "name": "Prolonged prothrombin time",
    "definition": "Increased time to coagulation in the prothrombin time test, which is a measure of the extrinsic pathway of coagulation. The results of the prothrombin time test are often expressed in terms of the International normalized ratio (INR), which is calculated as a ratio of the patient's prothrombin time (PT) to a control PT standardized for the potency of the thromboplastin reagent developed by the World Health Organization (WHO) using the formula: INR is equal to Patient PT divided by Control PT.",
    "synonyms": [
      "Increased INR",
      "Increased international normalised ratio",
      "Increased international normalized ratio",
      "Low factor II activity",
      "Prolonged PT",
      "Reduced factor II activity",
      "Reduced prothrombin activity"
    ],
    "systems": [
      {
        "slug": "abnormality-of-blood-and-blood-forming-tissues",
        "name": "Abnormality of blood and blood-forming tissues",
        "url": "https://dantelabs.com/traits/abnormality-of-blood-and-blood-forming-tissues"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-prothrombin-time",
        "name": "Abnormal prothrombin time",
        "url": "https://dantelabs.com/traits/abnormal-prothrombin-time"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "amacr",
        "symbol": "AMACR",
        "hgnc": "HGNC:451",
        "name": "alpha-methylacyl-CoA racemase",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/amacr"
      },
      {
        "slug": "cyp7b1",
        "symbol": "CYP7B1",
        "hgnc": "HGNC:2652",
        "name": "cytochrome P450 family 7 subfamily B member 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cyp7b1"
      },
      {
        "slug": "efl1",
        "symbol": "EFL1",
        "hgnc": "HGNC:25789",
        "name": "elongation factor like GTPase 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/efl1"
      },
      {
        "slug": "f10",
        "symbol": "F10",
        "hgnc": "HGNC:3528",
        "name": "coagulation factor X",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/f10"
      },
      {
        "slug": "ggcx",
        "symbol": "GGCX",
        "hgnc": "HGNC:4247",
        "name": "gamma-glutamyl carboxylase",
        "frequency": "obligate",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/ggcx"
      },
      {
        "slug": "micos13",
        "symbol": "MICOS13",
        "hgnc": "HGNC:33702",
        "name": "mitochondrial contact site and cristae organizing system subunit 13",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/micos13"
      },
      {
        "slug": "nr1h4",
        "symbol": "NR1H4",
        "hgnc": "HGNC:7967",
        "name": "nuclear receptor subfamily 1 group H member 4",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nr1h4"
      },
      {
        "slug": "pet100",
        "symbol": "PET100",
        "hgnc": "HGNC:40038",
        "name": "PET100 cytochrome c oxidase chaperone",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pet100"
      },
      {
        "slug": "psmb9",
        "symbol": "PSMB9",
        "hgnc": "HGNC:9546",
        "name": "proteasome 20S subunit beta 9",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/psmb9"
      },
      {
        "slug": "rint1",
        "symbol": "RINT1",
        "hgnc": "HGNC:21876",
        "name": "RAD50 interactor 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rint1"
      },
      {
        "slug": "rnu6atac",
        "symbol": "RNU6ATAC",
        "hgnc": "HGNC:34017",
        "name": "RNA, U6atac small nuclear",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rnu6atac"
      },
      {
        "slug": "slc37a4",
        "symbol": "SLC37A4",
        "hgnc": "HGNC:4061",
        "name": "solute carrier family 37 member 4",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc37a4"
      },
      {
        "slug": "sos2",
        "symbol": "SOS2",
        "hgnc": "HGNC:11188",
        "name": "SOS Ras/Rho guanine nucleotide exchange factor 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sos2"
      },
      {
        "slug": "trmu",
        "symbol": "TRMU",
        "hgnc": "HGNC:25481",
        "name": "tRNA mitochondrial 2-thiouridylase",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/trmu"
      },
      {
        "slug": "adk",
        "symbol": "ADK",
        "hgnc": "HGNC:257",
        "name": "adenosine kinase",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/adk"
      },
      {
        "slug": "f2",
        "symbol": "F2",
        "hgnc": "HGNC:3535",
        "name": "coagulation factor II, thrombin",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/f2"
      },
      {
        "slug": "gne",
        "symbol": "GNE",
        "hgnc": "HGNC:23657",
        "name": "glucosamine (UDP-N-acetyl)-2-epimerase/N-acetylmannosamine kinase",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gne"
      },
      {
        "slug": "lman1",
        "symbol": "LMAN1",
        "hgnc": "HGNC:6631",
        "name": "lectin, mannose binding 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lman1"
      },
      {
        "slug": "mcfd2",
        "symbol": "MCFD2",
        "hgnc": "HGNC:18451",
        "name": "multiple coagulation factor deficiency 2, ER cargo receptor complex subunit",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mcfd2"
      },
      {
        "slug": "mpv17",
        "symbol": "MPV17",
        "hgnc": "HGNC:7224",
        "name": "mitochondrial inner membrane protein MPV17",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mpv17"
      },
      {
        "slug": "slc25a13",
        "symbol": "SLC25A13",
        "hgnc": "HGNC:10983",
        "name": "solute carrier family 25 member 13",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc25a13"
      },
      {
        "slug": "acad9",
        "symbol": "ACAD9",
        "hgnc": "HGNC:21497",
        "name": "acyl-CoA dehydrogenase family member 9",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/acad9"
      },
      {
        "slug": "ahcy",
        "symbol": "AHCY",
        "hgnc": "HGNC:343",
        "name": "adenosylhomocysteinase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ahcy"
      },
      {
        "slug": "akr1d1",
        "symbol": "AKR1D1",
        "hgnc": "HGNC:388",
        "name": "aldo-keto reductase family 1 member D1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/akr1d1"
      },
      {
        "slug": "alg12",
        "symbol": "ALG12",
        "hgnc": "HGNC:19358",
        "name": "ALG12 alpha-1,6-mannosyltransferase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/alg12"
      },
      {
        "slug": "ano6",
        "symbol": "ANO6",
        "hgnc": "HGNC:25240",
        "name": "anoctamin 6",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ano6"
      },
      {
        "slug": "cd46",
        "symbol": "CD46",
        "hgnc": "HGNC:6953",
        "name": "CD46 molecule",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cd46"
      },
      {
        "slug": "cfh",
        "symbol": "CFH",
        "hgnc": "HGNC:4883",
        "name": "complement factor H",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cfh"
      },
      {
        "slug": "cfi",
        "symbol": "CFI",
        "hgnc": "HGNC:5394",
        "name": "complement factor I",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cfi"
      },
      {
        "slug": "f7",
        "symbol": "F7",
        "hgnc": "HGNC:3544",
        "name": "coagulation factor VII",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/f7"
      },
      {
        "slug": "hellpar",
        "symbol": "HELLPAR",
        "hgnc": "HGNC:43984",
        "name": "HELLP associated long non-coding RNA",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hellpar"
      },
      {
        "slug": "hmgcl",
        "symbol": "HMGCL",
        "hgnc": "HGNC:5005",
        "name": "3-hydroxy-3-methylglutaryl-CoA lyase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hmgcl"
      },
      {
        "slug": "pgm1",
        "symbol": "PGM1",
        "hgnc": "HGNC:8905",
        "name": "phosphoglucomutase 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pgm1"
      },
      {
        "slug": "vkorc1",
        "symbol": "VKORC1",
        "hgnc": "HGNC:23663",
        "name": "vitamin K epoxide reductase complex subunit 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vkorc1"
      },
      {
        "slug": "clpb",
        "symbol": "CLPB",
        "hgnc": "HGNC:30664",
        "name": "ClpB family mitochondrial disaggregase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/clpb"
      },
      {
        "slug": "cog8",
        "symbol": "COG8",
        "hgnc": "HGNC:18623",
        "name": "component of oligomeric golgi complex 8",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cog8"
      },
      {
        "slug": "f8",
        "symbol": "F8",
        "hgnc": "HGNC:3546",
        "name": "coagulation factor VIII",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/f8"
      },
      {
        "slug": "gpr35",
        "symbol": "GPR35",
        "hgnc": "HGNC:4492",
        "name": "G protein-coupled receptor 35",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gpr35"
      },
      {
        "slug": "hadh",
        "symbol": "HADH",
        "hgnc": "HGNC:4799",
        "name": "hydroxyacyl-CoA dehydrogenase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hadh"
      },
      {
        "slug": "mst1",
        "symbol": "MST1",
        "hgnc": "HGNC:7380",
        "name": "macrophage stimulating 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mst1"
      },
      {
        "slug": "mttp",
        "symbol": "MTTP",
        "hgnc": "HGNC:7467",
        "name": "microsomal triglyceride transfer protein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mttp"
      },
      {
        "slug": "ngly1",
        "symbol": "NGLY1",
        "hgnc": "HGNC:17646",
        "name": "N-glycanase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ngly1"
      },
      {
        "slug": "otc",
        "symbol": "OTC",
        "hgnc": "HGNC:8512",
        "name": "ornithine transcarbamylase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/otc"
      },
      {
        "slug": "sema4d",
        "symbol": "SEMA4D",
        "hgnc": "HGNC:10732",
        "name": "semaphorin 4D",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sema4d"
      },
      {
        "slug": "slc30a10",
        "symbol": "SLC30A10",
        "hgnc": "HGNC:25355",
        "name": "solute carrier family 30 member 10",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc30a10"
      },
      {
        "slug": "tcf4",
        "symbol": "TCF4",
        "hgnc": "HGNC:11634",
        "name": "transcription factor 4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tcf4"
      },
      {
        "slug": "f5",
        "symbol": "F5",
        "hgnc": "HGNC:3542",
        "name": "coagulation factor V",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/f5"
      },
      {
        "slug": "fah",
        "symbol": "FAH",
        "hgnc": "HGNC:3579",
        "name": "fumarylacetoacetate hydrolase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fah"
      },
      {
        "slug": "hla-dqa1",
        "symbol": "HLA-DQA1",
        "hgnc": "HGNC:4942",
        "name": "major histocompatibility complex, class II, DQ alpha 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hla-dqa1"
      },
      {
        "slug": "hla-dqb1",
        "symbol": "HLA-DQB1",
        "hgnc": "HGNC:4944",
        "name": "major histocompatibility complex, class II, DQ beta 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hla-dqb1"
      },
      {
        "slug": "nbas",
        "symbol": "NBAS",
        "hgnc": "HGNC:15625",
        "name": "NBAS subunit of NRZ tethering complex",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nbas"
      },
      {
        "slug": "pmm2",
        "symbol": "PMM2",
        "hgnc": "HGNC:9115",
        "name": "phosphomannomutase 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pmm2"
      },
      {
        "slug": "prf1",
        "symbol": "PRF1",
        "hgnc": "HGNC:9360",
        "name": "perforin 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prf1"
      }
    ]
  }
}