{
  "url": "https://dantelabs.com/traits/narrow-palm",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "narrow-palm",
    "id": "HP:0004283",
    "name": "Narrow palm",
    "definition": "For children from birth to 4 years of age, the palm width is more than 2 SD below the mean; for children from 4 to 16 years of age the palm width is below the 5th centile; or, the width of the palm appears disproportionately narrow for its length.",
    "synonyms": [
      "Narrow hand"
    ],
    "systems": [
      {
        "slug": "abnormality-of-limbs",
        "name": "Abnormality of limbs",
        "url": "https://dantelabs.com/traits/abnormality-of-limbs"
      }
    ],
    "broader": [
      {
        "slug": "abnormal-palm-morphology",
        "name": "Abnormality of the palm",
        "url": "https://dantelabs.com/traits/abnormal-palm-morphology"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "kmt2b",
        "symbol": "KMT2B",
        "hgnc": "HGNC:15840",
        "name": "lysine methyltransferase 2B",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kmt2b"
      },
      {
        "slug": "top2b",
        "symbol": "TOP2B",
        "hgnc": "HGNC:11990",
        "name": "DNA topoisomerase II beta",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/top2b"
      },
      {
        "slug": "vps13b",
        "symbol": "VPS13B",
        "hgnc": "HGNC:2183",
        "name": "vacuolar protein sorting 13 homolog B",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/vps13b"
      },
      {
        "slug": "herc2",
        "symbol": "HERC2",
        "hgnc": "HGNC:4868",
        "name": "HECT and RLD domain containing E3 ubiquitin protein ligase 2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/herc2"
      },
      {
        "slug": "magel2",
        "symbol": "MAGEL2",
        "hgnc": "HGNC:6814",
        "name": "MAGE family member L2",
        "frequency": "very-frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/magel2"
      },
      {
        "slug": "mkrn3",
        "symbol": "MKRN3",
        "hgnc": "HGNC:7114",
        "name": "makorin ring finger protein 3",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mkrn3"
      },
      {
        "slug": "npap1",
        "symbol": "NPAP1",
        "hgnc": "HGNC:1190",
        "name": "nuclear pore associated protein 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/npap1"
      },
      {
        "slug": "pwar1",
        "symbol": "PWAR1",
        "hgnc": "HGNC:30089",
        "name": "Prader Willi/Angelman region RNA 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pwar1"
      },
      {
        "slug": "pwrn1",
        "symbol": "PWRN1",
        "hgnc": "HGNC:33235",
        "name": "Prader-Willi region non-protein coding RNA 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pwrn1"
      },
      {
        "slug": "snord115-1",
        "symbol": "SNORD115-1",
        "hgnc": "HGNC:33020",
        "name": "small nucleolar RNA, C/D box 115-1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/snord115-1"
      },
      {
        "slug": "snord116-1",
        "symbol": "SNORD116-1",
        "hgnc": "HGNC:33067",
        "name": "small nucleolar RNA, C/D box 116-1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/snord116-1"
      },
      {
        "slug": "auts2",
        "symbol": "AUTS2",
        "hgnc": "HGNC:14262",
        "name": "activator of transcription and developmental regulator AUTS2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/auts2"
      },
      {
        "slug": "dpysl5",
        "symbol": "DPYSL5",
        "hgnc": "HGNC:20637",
        "name": "dihydropyrimidinase like 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dpysl5"
      },
      {
        "slug": "gnb1",
        "symbol": "GNB1",
        "hgnc": "HGNC:4396",
        "name": "G protein subunit beta 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gnb1"
      },
      {
        "slug": "kansl1",
        "symbol": "KANSL1",
        "hgnc": "HGNC:24565",
        "name": "KAT8 regulatory NSL complex subunit 1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kansl1"
      },
      {
        "slug": "ndn",
        "symbol": "NDN",
        "hgnc": "HGNC:7675",
        "name": "necdin, MAGE family member",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ndn"
      },
      {
        "slug": "snrpn",
        "symbol": "SNRPN",
        "hgnc": "HGNC:11164",
        "name": "small nuclear ribonucleoprotein polypeptide N",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/snrpn"
      },
      {
        "slug": "sms",
        "symbol": "SMS",
        "hgnc": "HGNC:11123",
        "name": "spermine synthase",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sms"
      },
      {
        "slug": "ube3b",
        "symbol": "UBE3B",
        "hgnc": "HGNC:13478",
        "name": "ubiquitin protein ligase E3B",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ube3b"
      }
    ]
  }
}