{
  "url": "https://dantelabs.com/traits/purpura",
  "trait": {
    "bundleId": "2026.10.16-c6eea6bf",
    "release": "2026-09-01",
    "slug": "purpura",
    "id": "HP:0000979",
    "name": "Blood spots",
    "label": "Purpura",
    "definition": "Purpura (from Latin: purpura, meaning purple) is the appearance of red or purple discolorations on the skin that do not blanch on applying pressure. They are caused by bleeding underneath the skin. This term refers to an abnormally increased susceptibility to developing purpura. Purpura are larger than petechiae.",
    "synonyms": [
      "Red or purple spots on the skin"
    ],
    "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"
      },
      {
        "slug": "abnormality-of-the-cardiovascular-system",
        "name": "Abnormality of the cardiovascular system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-cardiovascular-system"
      },
      {
        "slug": "abnormality-of-the-integument",
        "name": "Abnormality of the integument",
        "url": "https://dantelabs.com/traits/abnormality-of-the-integument"
      }
    ],
    "broader": [
      {
        "slug": "subcutaneous-hemorrhage",
        "name": "Bleeding below the skin",
        "url": "https://dantelabs.com/traits/subcutaneous-hemorrhage"
      }
    ],
    "narrower": [
      {
        "slug": "macular-purpura",
        "name": "Macular purpura",
        "genes": 0,
        "url": "https://dantelabs.com/traits/macular-purpura"
      }
    ],
    "genes": [
      {
        "slug": "cd81",
        "symbol": "CD81",
        "hgnc": "HGNC:1701",
        "name": "CD81 molecule",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cd81"
      },
      {
        "slug": "dnm1l",
        "symbol": "DNM1L",
        "hgnc": "HGNC:2973",
        "name": "dynamin 1L",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dnm1l"
      },
      {
        "slug": "fyb1",
        "symbol": "FYB1",
        "hgnc": "HGNC:4036",
        "name": "FYN binding protein 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fyb1"
      },
      {
        "slug": "hck",
        "symbol": "HCK",
        "hgnc": "HGNC:4840",
        "name": "HCK proto-oncogene, Src family tyrosine kinase",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hck"
      },
      {
        "slug": "lyn",
        "symbol": "LYN",
        "hgnc": "HGNC:6735",
        "name": "LYN proto-oncogene, Src family tyrosine kinase",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lyn"
      },
      {
        "slug": "pros1",
        "symbol": "PROS1",
        "hgnc": "HGNC:9456",
        "name": "protein S",
        "frequency": "obligate",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/pros1"
      },
      {
        "slug": "runx1",
        "symbol": "RUNX1",
        "hgnc": "HGNC:10471",
        "name": "RUNX family transcription factor 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/runx1"
      },
      {
        "slug": "top2b",
        "symbol": "TOP2B",
        "hgnc": "HGNC:11990",
        "name": "DNA topoisomerase II beta",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/top2b"
      },
      {
        "slug": "orai1",
        "symbol": "ORAI1",
        "hgnc": "HGNC:25896",
        "name": "ORAI calcium release-activated calcium modulator 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/orai1"
      },
      {
        "slug": "stim1",
        "symbol": "STIM1",
        "hgnc": "HGNC:11386",
        "name": "stromal interaction molecule 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stim1"
      },
      {
        "slug": "ada2",
        "symbol": "ADA2",
        "hgnc": "HGNC:1839",
        "name": "adenosine deaminase 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ada2"
      },
      {
        "slug": "bcor",
        "symbol": "BCOR",
        "hgnc": "HGNC:20893",
        "name": "BCL6 corepressor",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/bcor"
      },
      {
        "slug": "cd109",
        "symbol": "CD109",
        "hgnc": "HGNC:21685",
        "name": "CD109 molecule",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cd109"
      },
      {
        "slug": "fcgr2c",
        "symbol": "FCGR2C",
        "hgnc": "HGNC:15626",
        "name": "Fc gamma receptor IIc (gene/pseudogene)",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fcgr2c"
      },
      {
        "slug": "fip1l1",
        "symbol": "FIP1L1",
        "hgnc": "HGNC:19124",
        "name": "factor interacting with PAPOLA and CPSF1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fip1l1"
      },
      {
        "slug": "gna14",
        "symbol": "GNA14",
        "hgnc": "HGNC:4382",
        "name": "G protein subunit alpha 14",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/gna14"
      },
      {
        "slug": "gp1ba",
        "symbol": "GP1BA",
        "hgnc": "HGNC:4439",
        "name": "glycoprotein Ib platelet subunit alpha",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/gp1ba"
      },
      {
        "slug": "gp1bb",
        "symbol": "GP1BB",
        "hgnc": "HGNC:4440",
        "name": "glycoprotein Ib platelet subunit beta",
        "frequency": "frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/gp1bb"
      },
      {
        "slug": "irf2bp2",
        "symbol": "IRF2BP2",
        "hgnc": "HGNC:21729",
        "name": "interferon regulatory factor 2 binding protein 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/irf2bp2"
      },
      {
        "slug": "itga2",
        "symbol": "ITGA2",
        "hgnc": "HGNC:6137",
        "name": "integrin subunit alpha 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/itga2"
      },
      {
        "slug": "itga2b",
        "symbol": "ITGA2B",
        "hgnc": "HGNC:6138",
        "name": "integrin subunit alpha 2b",
        "frequency": "frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/itga2b"
      },
      {
        "slug": "itgb3",
        "symbol": "ITGB3",
        "hgnc": "HGNC:6156",
        "name": "integrin subunit beta 3",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/itgb3"
      },
      {
        "slug": "nabp1",
        "symbol": "NABP1",
        "hgnc": "HGNC:26232",
        "name": "nucleic acid binding protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nabp1"
      },
      {
        "slug": "npm1",
        "symbol": "NPM1",
        "hgnc": "HGNC:7910",
        "name": "nucleophosmin 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/npm1"
      },
      {
        "slug": "numa1",
        "symbol": "NUMA1",
        "hgnc": "HGNC:8059",
        "name": "nuclear mitotic apparatus protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/numa1"
      },
      {
        "slug": "pml",
        "symbol": "PML",
        "hgnc": "HGNC:9113",
        "name": "PML nuclear body scaffold",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pml"
      },
      {
        "slug": "prf1",
        "symbol": "PRF1",
        "hgnc": "HGNC:9360",
        "name": "perforin 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prf1"
      },
      {
        "slug": "prkar1a",
        "symbol": "PRKAR1A",
        "hgnc": "HGNC:9388",
        "name": "protein kinase cAMP-dependent type I regulatory subunit alpha",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prkar1a"
      },
      {
        "slug": "proc",
        "symbol": "PROC",
        "hgnc": "HGNC:9451",
        "name": "protein C, inactivator of coagulation factors Va and VIIIa",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/proc"
      },
      {
        "slug": "rara",
        "symbol": "RARA",
        "hgnc": "HGNC:9864",
        "name": "retinoic acid receptor alpha",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rara"
      },
      {
        "slug": "stat3",
        "symbol": "STAT3",
        "hgnc": "HGNC:11364",
        "name": "signal transducer and activator of transcription 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stat3"
      },
      {
        "slug": "stat5b",
        "symbol": "STAT5B",
        "hgnc": "HGNC:11367",
        "name": "signal transducer and activator of transcription 5B",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stat5b"
      },
      {
        "slug": "stx11",
        "symbol": "STX11",
        "hgnc": "HGNC:11429",
        "name": "syntaxin 11",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stx11"
      },
      {
        "slug": "stxbp2",
        "symbol": "STXBP2",
        "hgnc": "HGNC:11445",
        "name": "syntaxin binding protein 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/stxbp2"
      },
      {
        "slug": "tbl1xr1",
        "symbol": "TBL1XR1",
        "hgnc": "HGNC:29529",
        "name": "TBL1X/Y related 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbl1xr1"
      },
      {
        "slug": "unc13d",
        "symbol": "UNC13D",
        "hgnc": "HGNC:23147",
        "name": "unc-13 homolog D",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/unc13d"
      },
      {
        "slug": "was",
        "symbol": "WAS",
        "hgnc": "HGNC:12731",
        "name": "WASP actin nucleation promoting factor",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/was"
      },
      {
        "slug": "zbtb16",
        "symbol": "ZBTB16",
        "hgnc": "HGNC:12930",
        "name": "zinc finger and BTB domain containing 16",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zbtb16"
      },
      {
        "slug": "arl6ip6",
        "symbol": "ARL6IP6",
        "hgnc": "HGNC:24048",
        "name": "ARF like GTPase 6 interacting protein 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/arl6ip6"
      },
      {
        "slug": "arvcf",
        "symbol": "ARVCF",
        "hgnc": "HGNC:728",
        "name": "ARVCF delta catenin family member",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/arvcf"
      },
      {
        "slug": "atrx",
        "symbol": "ATRX",
        "hgnc": "HGNC:886",
        "name": "ATRX chromatin remodeler",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atrx"
      },
      {
        "slug": "braf",
        "symbol": "BRAF",
        "hgnc": "HGNC:1097",
        "name": "B-Raf proto-oncogene, serine/threonine kinase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/braf"
      },
      {
        "slug": "calr",
        "symbol": "CALR",
        "hgnc": "HGNC:1455",
        "name": "calreticulin",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/calr"
      },
      {
        "slug": "cdh23",
        "symbol": "CDH23",
        "hgnc": "HGNC:13733",
        "name": "cadherin related 23",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cdh23"
      },
      {
        "slug": "comt",
        "symbol": "COMT",
        "hgnc": "HGNC:2228",
        "name": "catechol-O-methyltransferase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/comt"
      },
      {
        "slug": "ctla4",
        "symbol": "CTLA4",
        "hgnc": "HGNC:2505",
        "name": "cytotoxic T-lymphocyte associated protein 4",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctla4"
      },
      {
        "slug": "gna11",
        "symbol": "GNA11",
        "hgnc": "HGNC:4379",
        "name": "G protein subunit alpha 11",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gna11"
      },
      {
        "slug": "hira",
        "symbol": "HIRA",
        "hgnc": "HGNC:4916",
        "name": "histone cell cycle regulator",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hira"
      },
      {
        "slug": "hla-dpa1",
        "symbol": "HLA-DPA1",
        "hgnc": "HGNC:4938",
        "name": "major histocompatibility complex, class II, DP alpha 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hla-dpa1"
      },
      {
        "slug": "hla-dpb1",
        "symbol": "HLA-DPB1",
        "hgnc": "HGNC:4940",
        "name": "major histocompatibility complex, class II, DP beta 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hla-dpb1"
      },
      {
        "slug": "jak2",
        "symbol": "JAK2",
        "hgnc": "HGNC:6192",
        "name": "Janus kinase 2",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/jak2"
      },
      {
        "slug": "jmjd1c",
        "symbol": "JMJD1C",
        "hgnc": "HGNC:12313",
        "name": "jumonji domain containing 1C",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/jmjd1c"
      },
      {
        "slug": "mpl",
        "symbol": "MPL",
        "hgnc": "HGNC:7217",
        "name": "MPL proto-oncogene, thrombopoietin receptor",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/mpl"
      },
      {
        "slug": "mvk",
        "symbol": "MVK",
        "hgnc": "HGNC:7530",
        "name": "mevalonate kinase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mvk"
      },
      {
        "slug": "myd88",
        "symbol": "MYD88",
        "hgnc": "HGNC:7562",
        "name": "MYD88 innate immune signal transduction adaptor",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/myd88"
      },
      {
        "slug": "nlrp3",
        "symbol": "NLRP3",
        "hgnc": "HGNC:16400",
        "name": "NLR family pyrin domain containing 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nlrp3"
      },
      {
        "slug": "nr3c1",
        "symbol": "NR3C1",
        "hgnc": "HGNC:7978",
        "name": "nuclear receptor subfamily 3 group C member 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nr3c1"
      },
      {
        "slug": "prtn3",
        "symbol": "PRTN3",
        "hgnc": "HGNC:9495",
        "name": "proteinase 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prtn3"
      },
      {
        "slug": "ptpn22",
        "symbol": "PTPN22",
        "hgnc": "HGNC:9652",
        "name": "protein tyrosine phosphatase non-receptor type 22",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ptpn22"
      },
      {
        "slug": "rreb1",
        "symbol": "RREB1",
        "hgnc": "HGNC:10449",
        "name": "ras responsive element binding protein 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rreb1"
      },
      {
        "slug": "sec24c",
        "symbol": "SEC24C",
        "hgnc": "HGNC:10705",
        "name": "SEC24 homolog C, COPII component",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sec24c"
      },
      {
        "slug": "tbx1",
        "symbol": "TBX1",
        "hgnc": "HGNC:11592",
        "name": "T-box transcription factor 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbx1"
      },
      {
        "slug": "tet2",
        "symbol": "TET2",
        "hgnc": "HGNC:25941",
        "name": "tet methylcytosine dioxygenase 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tet2"
      },
      {
        "slug": "tp53",
        "symbol": "TP53",
        "hgnc": "HGNC:11998",
        "name": "tumor protein p53",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tp53"
      },
      {
        "slug": "ufd1",
        "symbol": "UFD1",
        "hgnc": "HGNC:12520",
        "name": "ubiquitin recognition factor in ER associated degradation 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ufd1"
      },
      {
        "slug": "usp48",
        "symbol": "USP48",
        "hgnc": "HGNC:18533",
        "name": "ubiquitin specific peptidase 48",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/usp48"
      },
      {
        "slug": "usp8",
        "symbol": "USP8",
        "hgnc": "HGNC:12631",
        "name": "ubiquitin specific peptidase 8",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/usp8"
      },
      {
        "slug": "f8",
        "symbol": "F8",
        "hgnc": "HGNC:3546",
        "name": "coagulation factor VIII",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/f8"
      },
      {
        "slug": "acp5",
        "symbol": "ACP5",
        "hgnc": "HGNC:124",
        "name": "acid phosphatase 5, tartrate resistant",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/acp5"
      },
      {
        "slug": "aip",
        "symbol": "AIP",
        "hgnc": "HGNC:358",
        "name": "AHR interacting HSP90 co-chaperone",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/aip"
      },
      {
        "slug": "c2",
        "symbol": "C2",
        "hgnc": "HGNC:1248",
        "name": "complement C2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/c2"
      },
      {
        "slug": "c4a",
        "symbol": "C4A",
        "hgnc": "HGNC:1323",
        "name": "complement C4A (Chido/Rodgers blood group)",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/c4a"
      },
      {
        "slug": "cfh",
        "symbol": "CFH",
        "hgnc": "HGNC:4883",
        "name": "complement factor H",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cfh"
      },
      {
        "slug": "cfhr1",
        "symbol": "CFHR1",
        "hgnc": "HGNC:4888",
        "name": "complement factor H related 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cfhr1"
      },
      {
        "slug": "cfhr3",
        "symbol": "CFHR3",
        "hgnc": "HGNC:16980",
        "name": "complement factor H related 3",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cfhr3"
      },
      {
        "slug": "gba1",
        "symbol": "GBA1",
        "hgnc": "HGNC:4177",
        "name": "glucosylceramidase beta 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gba1"
      },
      {
        "slug": "gp9",
        "symbol": "GP9",
        "hgnc": "HGNC:4444",
        "name": "glycoprotein IX platelet",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gp9"
      },
      {
        "slug": "hoxa11",
        "symbol": "HOXA11",
        "hgnc": "HGNC:5101",
        "name": "homeobox A11",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hoxa11"
      },
      {
        "slug": "sh2b3",
        "symbol": "SH2B3",
        "hgnc": "HGNC:29605",
        "name": "SH2B adaptor protein 3",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sh2b3"
      },
      {
        "slug": "tfr2",
        "symbol": "TFR2",
        "hgnc": "HGNC:11762",
        "name": "transferrin receptor 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tfr2"
      },
      {
        "slug": "trex1",
        "symbol": "TREX1",
        "hgnc": "HGNC:12269",
        "name": "three prime repair exonuclease 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/trex1"
      }
    ]
  }
}