{
  "url": "https://dantelabs.com/traits/duplicated-collecting-system",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "duplicated-collecting-system",
    "id": "HP:0000081",
    "name": "Duplicated collecting system",
    "definition": "A duplication of the collecting system of the kidney, defined as a kidney with two (instead of, normally, one) pyelocaliceal systems. The pyelocaliceal system is comprised of the renal pelvis and calices. The duplicated renal collecting system can be associated with a single ureter or with double ureters. In the latter case, the two ureters empty separately into the bladder or fuse to form a single ureteral orifice.",
    "synonyms": [
      "Double collecting system",
      "Double urinary collecting systems on intravenous pyelography",
      "Duplex collecting system",
      "Duplicated renal collecting system"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-genitourinary-system",
        "name": "Abnormality of the genitourinary system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-genitourinary-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-renal-collecting-system-morphology",
        "name": "Abnormal renal collecting system morphology",
        "url": "https://dantelabs.com/traits/abnormal-renal-collecting-system-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "iars1",
        "symbol": "IARS1",
        "hgnc": "HGNC:5330",
        "name": "isoleucyl-tRNA synthetase 1",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/iars1"
      },
      {
        "slug": "med16",
        "symbol": "MED16",
        "hgnc": "HGNC:17556",
        "name": "mediator complex subunit 16",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/med16"
      },
      {
        "slug": "pan2",
        "symbol": "PAN2",
        "hgnc": "HGNC:20074",
        "name": "poly(A) specific ribonuclease subunit PAN2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pan2"
      },
      {
        "slug": "dhcr7",
        "symbol": "DHCR7",
        "hgnc": "HGNC:2860",
        "name": "7-dehydrocholesterol reductase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dhcr7"
      },
      {
        "slug": "emilin1",
        "symbol": "EMILIN1",
        "hgnc": "HGNC:19880",
        "name": "elastin microfibril interfacer 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/emilin1"
      },
      {
        "slug": "piga",
        "symbol": "PIGA",
        "hgnc": "HGNC:8957",
        "name": "phosphatidylinositol glycan anchor biosynthesis class A",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/piga"
      },
      {
        "slug": "pogz",
        "symbol": "POGZ",
        "hgnc": "HGNC:18801",
        "name": "pogo transposable element derived with ZNF domain",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/pogz"
      },
      {
        "slug": "psmc1",
        "symbol": "PSMC1",
        "hgnc": "HGNC:9547",
        "name": "proteasome 26S subunit, ATPase 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/psmc1"
      },
      {
        "slug": "tnxb",
        "symbol": "TNXB",
        "hgnc": "HGNC:11976",
        "name": "tenascin XB",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tnxb"
      },
      {
        "slug": "kdm6a",
        "symbol": "KDM6A",
        "hgnc": "HGNC:12637",
        "name": "lysine demethylase 6A",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kdm6a"
      },
      {
        "slug": "kmt2d",
        "symbol": "KMT2D",
        "hgnc": "HGNC:7133",
        "name": "lysine methyltransferase 2D",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kmt2d"
      },
      {
        "slug": "lama3",
        "symbol": "LAMA3",
        "hgnc": "HGNC:6483",
        "name": "laminin subunit alpha 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lama3"
      },
      {
        "slug": "lamb3",
        "symbol": "LAMB3",
        "hgnc": "HGNC:6490",
        "name": "laminin subunit beta 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lamb3"
      },
      {
        "slug": "lamc2",
        "symbol": "LAMC2",
        "hgnc": "HGNC:6493",
        "name": "laminin subunit gamma 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lamc2"
      },
      {
        "slug": "mapk1",
        "symbol": "MAPK1",
        "hgnc": "HGNC:6871",
        "name": "mitogen-activated protein kinase 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mapk1"
      },
      {
        "slug": "otud5",
        "symbol": "OTUD5",
        "hgnc": "HGNC:25402",
        "name": "OTU deubiquitinase 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/otud5"
      },
      {
        "slug": "shoc2",
        "symbol": "SHOC2",
        "hgnc": "HGNC:15454",
        "name": "SHOC2 leucine rich repeat scaffold protein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/shoc2"
      },
      {
        "slug": "telo2",
        "symbol": "TELO2",
        "hgnc": "HGNC:29099",
        "name": "telomere maintenance 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/telo2"
      },
      {
        "slug": "wsb2",
        "symbol": "WSB2",
        "hgnc": "HGNC:19222",
        "name": "WD repeat and SOCS box containing 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/wsb2"
      },
      {
        "slug": "col18a1",
        "symbol": "COL18A1",
        "hgnc": "HGNC:2195",
        "name": "collagen type XVIII alpha 1 chain",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/col18a1"
      },
      {
        "slug": "jag1",
        "symbol": "JAG1",
        "hgnc": "HGNC:6188",
        "name": "jagged canonical Notch ligand 1",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/jag1"
      },
      {
        "slug": "fanca",
        "symbol": "FANCA",
        "hgnc": "HGNC:3582",
        "name": "FA complementation group A",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fanca"
      },
      {
        "slug": "fancc",
        "symbol": "FANCC",
        "hgnc": "HGNC:3584",
        "name": "FA complementation group C",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fancc"
      },
      {
        "slug": "fancd2",
        "symbol": "FANCD2",
        "hgnc": "HGNC:3585",
        "name": "FA complementation group D2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fancd2"
      },
      {
        "slug": "fance",
        "symbol": "FANCE",
        "hgnc": "HGNC:3586",
        "name": "FA complementation group E",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fance"
      },
      {
        "slug": "pigl",
        "symbol": "PIGL",
        "hgnc": "HGNC:8966",
        "name": "phosphatidylinositol glycan anchor biosynthesis class L",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pigl"
      },
      {
        "slug": "tp63",
        "symbol": "TP63",
        "hgnc": "HGNC:15979",
        "name": "tumor protein p63",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tp63"
      }
    ]
  }
}