{
  "url": "https://dantelabs.com/traits/delayed-cranial-suture-closure",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "delayed-cranial-suture-closure",
    "id": "HP:0000270",
    "name": "Delayed cranial suture closure",
    "definition": "Infants normally have two fontanels at birth, the diamond-shaped anterior fontanelle at the junction of the coronal and sagittal sutures, and the posterior fontanelle at the intersection of the occipital and parietal bones. The posterior fontanelle usually closes by the 8th week of life, and the anterior fontanel closes by the 18th month of life on average. This term applies if there is delay of closure of the fontanelles beyond the normal age.",
    "synonyms": [
      "Broad late closing cranial sutures",
      "Delayed closure of fontanel",
      "Delayed closure of fontanelles",
      "Delayed closure of fontanels",
      "Delayed closure of the fontanelles",
      "Delayed fontanel closure",
      "Delayed fontanelle closure",
      "Late closing fontanelles",
      "Late closure of fontanelle",
      "Late-closing fontanelle",
      "Open sutures"
    ],
    "systems": [
      {
        "slug": "abnormality-of-head-or-neck",
        "name": "Abnormality of head or neck",
        "url": "https://dantelabs.com/traits/abnormality-of-head-or-neck"
      },
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      }
    ],
    "broader": [
      {
        "slug": "abnormality-of-cranial-sutures",
        "name": "Abnormality of cranial sutures",
        "url": "https://dantelabs.com/traits/abnormality-of-cranial-sutures"
      }
    ],
    "narrower": [
      {
        "slug": "delayed-closure-of-the-anterior-fontanelle",
        "name": "Delayed closure of the soft spot on the skull",
        "genes": 28,
        "url": "https://dantelabs.com/traits/delayed-closure-of-the-anterior-fontanelle"
      }
    ],
    "genes": [
      {
        "slug": "gins3",
        "symbol": "GINS3",
        "hgnc": "HGNC:25851",
        "name": "GINS complex subunit 3",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gins3"
      },
      {
        "slug": "lmna",
        "symbol": "LMNA",
        "hgnc": "HGNC:6636",
        "name": "lamin A/C",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmna"
      },
      {
        "slug": "ptdss1",
        "symbol": "PTDSS1",
        "hgnc": "HGNC:9587",
        "name": "phosphatidylserine synthase 1",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ptdss1"
      },
      {
        "slug": "zmpste24",
        "symbol": "ZMPSTE24",
        "hgnc": "HGNC:12877",
        "name": "zinc metallopeptidase STE24",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zmpste24"
      },
      {
        "slug": "atp7a",
        "symbol": "ATP7A",
        "hgnc": "HGNC:869",
        "name": "ATPase copper transporting alpha",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp7a"
      },
      {
        "slug": "fam111a",
        "symbol": "FAM111A",
        "hgnc": "HGNC:24725",
        "name": "FAM111 trypsin like peptidase A",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fam111a"
      },
      {
        "slug": "fam20c",
        "symbol": "FAM20C",
        "hgnc": "HGNC:22140",
        "name": "FAM20C golgi associated secretory pathway kinase",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fam20c"
      },
      {
        "slug": "flna",
        "symbol": "FLNA",
        "hgnc": "HGNC:3754",
        "name": "filamin A",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/flna"
      },
      {
        "slug": "rnu12",
        "symbol": "RNU12",
        "hgnc": "HGNC:19380",
        "name": "RNA, U12 small nuclear",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/rnu12"
      },
      {
        "slug": "actb",
        "symbol": "ACTB",
        "hgnc": "HGNC:132",
        "name": "actin beta",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/actb"
      },
      {
        "slug": "actg1",
        "symbol": "ACTG1",
        "hgnc": "HGNC:144",
        "name": "actin gamma 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/actg1"
      },
      {
        "slug": "aldh18a1",
        "symbol": "ALDH18A1",
        "hgnc": "HGNC:9722",
        "name": "aldehyde dehydrogenase 18 family member A1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/aldh18a1"
      },
      {
        "slug": "amer1",
        "symbol": "AMER1",
        "hgnc": "HGNC:26837",
        "name": "APC membrane recruitment protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/amer1"
      },
      {
        "slug": "casz1",
        "symbol": "CASZ1",
        "hgnc": "HGNC:26002",
        "name": "castor zinc finger 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/casz1"
      },
      {
        "slug": "ctnnb1",
        "symbol": "CTNNB1",
        "hgnc": "HGNC:2514",
        "name": "catenin beta 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctnnb1"
      },
      {
        "slug": "ctsk",
        "symbol": "CTSK",
        "hgnc": "HGNC:2536",
        "name": "cathepsin K",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctsk"
      },
      {
        "slug": "duox2",
        "symbol": "DUOX2",
        "hgnc": "HGNC:13273",
        "name": "dual oxidase 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/duox2"
      },
      {
        "slug": "duoxa2",
        "symbol": "DUOXA2",
        "hgnc": "HGNC:32698",
        "name": "dual oxidase maturation factor 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/duoxa2"
      },
      {
        "slug": "fgfr2",
        "symbol": "FGFR2",
        "hgnc": "HGNC:3689",
        "name": "fibroblast growth factor receptor 2",
        "frequency": "frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/fgfr2"
      },
      {
        "slug": "fgfr3",
        "symbol": "FGFR3",
        "hgnc": "HGNC:3690",
        "name": "fibroblast growth factor receptor 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fgfr3"
      },
      {
        "slug": "gabrd",
        "symbol": "GABRD",
        "hgnc": "HGNC:4084",
        "name": "gamma-aminobutyric acid type A receptor subunit delta",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gabrd"
      },
      {
        "slug": "hesx1",
        "symbol": "HESX1",
        "hgnc": "HGNC:4877",
        "name": "HESX homeobox 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hesx1"
      },
      {
        "slug": "hsd17b4",
        "symbol": "HSD17B4",
        "hgnc": "HGNC:5213",
        "name": "hydroxysteroid 17-beta dehydrogenase 4",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hsd17b4"
      },
      {
        "slug": "hspg2",
        "symbol": "HSPG2",
        "hgnc": "HGNC:5273",
        "name": "heparan sulfate proteoglycan 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hspg2"
      },
      {
        "slug": "iyd",
        "symbol": "IYD",
        "hgnc": "HGNC:21071",
        "name": "iodotyrosine deiodinase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/iyd"
      },
      {
        "slug": "kcnab2",
        "symbol": "KCNAB2",
        "hgnc": "HGNC:6229",
        "name": "potassium voltage-gated channel subfamily A regulatory beta subunit 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kcnab2"
      },
      {
        "slug": "lhx3",
        "symbol": "LHX3",
        "hgnc": "HGNC:6595",
        "name": "LIM homeobox 3",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lhx3"
      },
      {
        "slug": "lhx4",
        "symbol": "LHX4",
        "hgnc": "HGNC:21734",
        "name": "LIM homeobox 4",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lhx4"
      },
      {
        "slug": "luzp1",
        "symbol": "LUZP1",
        "hgnc": "HGNC:14985",
        "name": "leucine zipper protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/luzp1"
      },
      {
        "slug": "mmp23b",
        "symbol": "MMP23B",
        "hgnc": "HGNC:7171",
        "name": "matrix metallopeptidase 23B",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mmp23b"
      },
      {
        "slug": "mtx2",
        "symbol": "MTX2",
        "hgnc": "HGNC:7506",
        "name": "metaxin 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mtx2"
      },
      {
        "slug": "naa10",
        "symbol": "NAA10",
        "hgnc": "HGNC:18704",
        "name": "N-alpha-acetyltransferase 10, NatA catalytic subunit",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/naa10"
      },
      {
        "slug": "pdpn",
        "symbol": "PDPN",
        "hgnc": "HGNC:29602",
        "name": "podoplanin",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pdpn"
      },
      {
        "slug": "pou1f1",
        "symbol": "POU1F1",
        "hgnc": "HGNC:9210",
        "name": "POU class 1 homeobox 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/pou1f1"
      },
      {
        "slug": "prdm16",
        "symbol": "PRDM16",
        "hgnc": "HGNC:14000",
        "name": "PR/SET domain 16",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prdm16"
      },
      {
        "slug": "prim1",
        "symbol": "PRIM1",
        "hgnc": "HGNC:9369",
        "name": "DNA primase subunit 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prim1"
      },
      {
        "slug": "prkcz",
        "symbol": "PRKCZ",
        "hgnc": "HGNC:9412",
        "name": "protein kinase C zeta",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prkcz"
      },
      {
        "slug": "prop1",
        "symbol": "PROP1",
        "hgnc": "HGNC:9455",
        "name": "PROP paired-like homeobox 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/prop1"
      },
      {
        "slug": "rere",
        "symbol": "RERE",
        "hgnc": "HGNC:9965",
        "name": "arginine-glutamic acid dipeptide repeats",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rere"
      },
      {
        "slug": "ski",
        "symbol": "SKI",
        "hgnc": "HGNC:10896",
        "name": "SKI proto-oncogene",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ski"
      },
      {
        "slug": "slc5a5",
        "symbol": "SLC5A5",
        "hgnc": "HGNC:11040",
        "name": "solute carrier family 5 member 5",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/slc5a5"
      },
      {
        "slug": "spen",
        "symbol": "SPEN",
        "hgnc": "HGNC:17575",
        "name": "spen family transcriptional repressor",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/spen"
      },
      {
        "slug": "tbce",
        "symbol": "TBCE",
        "hgnc": "HGNC:11582",
        "name": "tubulin folding cofactor E",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tbce"
      },
      {
        "slug": "tg",
        "symbol": "TG",
        "hgnc": "HGNC:11764",
        "name": "thyroglobulin",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tg"
      },
      {
        "slug": "tpo",
        "symbol": "TPO",
        "hgnc": "HGNC:12015",
        "name": "thyroid peroxidase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tpo"
      },
      {
        "slug": "tshb",
        "symbol": "TSHB",
        "hgnc": "HGNC:12372",
        "name": "thyroid stimulating hormone subunit beta",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tshb"
      },
      {
        "slug": "twist1",
        "symbol": "TWIST1",
        "hgnc": "HGNC:12428",
        "name": "twist family bHLH transcription factor 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/twist1"
      },
      {
        "slug": "ube4b",
        "symbol": "UBE4B",
        "hgnc": "HGNC:12500",
        "name": "ubiquitination factor E4B",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ube4b"
      },
      {
        "slug": "alg9",
        "symbol": "ALG9",
        "hgnc": "HGNC:15672",
        "name": "ALG9 alpha-1,2-mannosyltransferase",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/alg9"
      },
      {
        "slug": "bicra",
        "symbol": "BICRA",
        "hgnc": "HGNC:4332",
        "name": "BRD4 interacting chromatin remodeling complex associated protein",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/bicra"
      },
      {
        "slug": "ddx6",
        "symbol": "DDX6",
        "hgnc": "HGNC:2747",
        "name": "DEAD-box helicase 6",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ddx6"
      },
      {
        "slug": "eln",
        "symbol": "ELN",
        "hgnc": "HGNC:3327",
        "name": "elastin",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/eln"
      },
      {
        "slug": "fbln5",
        "symbol": "FBLN5",
        "hgnc": "HGNC:3602",
        "name": "fibulin 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fbln5"
      },
      {
        "slug": "gli3",
        "symbol": "GLI3",
        "hgnc": "HGNC:4319",
        "name": "GLI family zinc finger 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gli3"
      },
      {
        "slug": "maf",
        "symbol": "MAF",
        "hgnc": "HGNC:6776",
        "name": "MAF bZIP transcription factor",
        "frequency": "occasional",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/maf"
      },
      {
        "slug": "ppp1r21",
        "symbol": "PPP1R21",
        "hgnc": "HGNC:30595",
        "name": "protein phosphatase 1 regulatory subunit 21",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ppp1r21"
      },
      {
        "slug": "rnf125",
        "symbol": "RNF125",
        "hgnc": "HGNC:21150",
        "name": "ring finger protein 125",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rnf125"
      },
      {
        "slug": "usp7",
        "symbol": "USP7",
        "hgnc": "HGNC:12630",
        "name": "ubiquitin specific peptidase 7",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/usp7"
      },
      {
        "slug": "zic1",
        "symbol": "ZIC1",
        "hgnc": "HGNC:12872",
        "name": "Zic family zinc finger 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zic1"
      },
      {
        "slug": "atp6v0a2",
        "symbol": "ATP6V0A2",
        "hgnc": "HGNC:18481",
        "name": "ATPase H+ transporting V0 subunit a2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atp6v0a2"
      },
      {
        "slug": "chst14",
        "symbol": "CHST14",
        "hgnc": "HGNC:24464",
        "name": "carbohydrate sulfotransferase 14",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/chst14"
      },
      {
        "slug": "crebbp",
        "symbol": "CREBBP",
        "hgnc": "HGNC:2348",
        "name": "CREB binding lysine acetyltransferase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/crebbp"
      },
      {
        "slug": "crtap",
        "symbol": "CRTAP",
        "hgnc": "HGNC:2379",
        "name": "cartilage associated protein",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/crtap"
      },
      {
        "slug": "ep300",
        "symbol": "EP300",
        "hgnc": "HGNC:3373",
        "name": "EP300 lysine acetyltransferase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ep300"
      },
      {
        "slug": "igf2",
        "symbol": "IGF2",
        "hgnc": "HGNC:5466",
        "name": "insulin like growth factor 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/igf2"
      },
      {
        "slug": "pdgfrb",
        "symbol": "PDGFRB",
        "hgnc": "HGNC:8804",
        "name": "platelet derived growth factor receptor beta",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pdgfrb"
      },
      {
        "slug": "ror2",
        "symbol": "ROR2",
        "hgnc": "HGNC:10257",
        "name": "ROR family WNT receptor 2",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ror2"
      },
      {
        "slug": "rps19",
        "symbol": "RPS19",
        "hgnc": "HGNC:10402",
        "name": "ribosomal protein S19",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rps19"
      },
      {
        "slug": "sh3pxd2b",
        "symbol": "SH3PXD2B",
        "hgnc": "HGNC:29242",
        "name": "SH3 and PX domains 2B",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sh3pxd2b"
      }
    ]
  }
}