{
  "url": "https://dantelabs.com/traits/spastic-gait",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "spastic-gait",
    "id": "HP:0002064",
    "name": "Spastic walk",
    "label": "Spastic gait",
    "definition": "Spasticity is manifested by increased stretch reflex which is intensified with movement velocity. This results in excessive and inappropriate muscle activation which can contribute to muscle hypertonia. Spastic gait is characterized by manifestations such as muscle hypertonia, stiff knee, and circumduction of the leg.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-musculoskeletal-system",
        "name": "Abnormality of the musculoskeletal system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-musculoskeletal-system"
      },
      {
        "slug": "abnormality-of-the-nervous-system",
        "name": "Abnormality of the nervous system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-nervous-system"
      }
    ],
    "broader": [
      {
        "slug": "gait-disturbance",
        "name": "Abnormal gait",
        "url": "https://dantelabs.com/traits/gait-disturbance"
      },
      {
        "slug": "spasticity",
        "name": "Involuntary muscle stiffness, contraction, or spasm",
        "url": "https://dantelabs.com/traits/spasticity"
      }
    ],
    "narrower": [
      {
        "slug": "spastic-paraparetic-gait",
        "name": "Spastic paraparetic gait",
        "genes": 1,
        "url": "https://dantelabs.com/traits/spastic-paraparetic-gait"
      }
    ],
    "genes": [
      {
        "slug": "afg3l2",
        "symbol": "AFG3L2",
        "hgnc": "HGNC:315",
        "name": "AFG3 like matrix AAA peptidase subunit 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/afg3l2"
      },
      {
        "slug": "arg1",
        "symbol": "ARG1",
        "hgnc": "HGNC:663",
        "name": "arginase 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/arg1"
      },
      {
        "slug": "cct5",
        "symbol": "CCT5",
        "hgnc": "HGNC:1618",
        "name": "chaperonin containing TCP1 subunit 5",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cct5"
      },
      {
        "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": "fdxr",
        "symbol": "FDXR",
        "hgnc": "HGNC:3642",
        "name": "ferredoxin reductase",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fdxr"
      },
      {
        "slug": "fuca1",
        "symbol": "FUCA1",
        "hgnc": "HGNC:4006",
        "name": "alpha-L-fucosidase 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/fuca1"
      },
      {
        "slug": "gjc2",
        "symbol": "GJC2",
        "hgnc": "HGNC:17494",
        "name": "gap junction protein gamma 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gjc2"
      },
      {
        "slug": "kcna4",
        "symbol": "KCNA4",
        "hgnc": "HGNC:6222",
        "name": "potassium voltage-gated channel subfamily A member 4",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kcna4"
      },
      {
        "slug": "kidins220",
        "symbol": "KIDINS220",
        "hgnc": "HGNC:29508",
        "name": "kinase D interacting substrate 220",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kidins220"
      },
      {
        "slug": "kif5a",
        "symbol": "KIF5A",
        "hgnc": "HGNC:6323",
        "name": "kinesin family member 5A",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kif5a"
      },
      {
        "slug": "mag",
        "symbol": "MAG",
        "hgnc": "HGNC:6783",
        "name": "myelin associated glycoprotein",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mag"
      },
      {
        "slug": "nsun2",
        "symbol": "NSUN2",
        "hgnc": "HGNC:25994",
        "name": "NOP2/Sun RNA methyltransferase 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nsun2"
      },
      {
        "slug": "nt5c2",
        "symbol": "NT5C2",
        "hgnc": "HGNC:8022",
        "name": "5'-nucleotidase, cytosolic II",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/nt5c2"
      },
      {
        "slug": "reep1",
        "symbol": "REEP1",
        "hgnc": "HGNC:25786",
        "name": "receptor accessory protein 1",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/reep1"
      },
      {
        "slug": "reep2",
        "symbol": "REEP2",
        "hgnc": "HGNC:17975",
        "name": "receptor accessory protein 2",
        "frequency": "obligate",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/reep2"
      },
      {
        "slug": "rtn2",
        "symbol": "RTN2",
        "hgnc": "HGNC:10468",
        "name": "reticulon 2",
        "frequency": "obligate",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/rtn2"
      },
      {
        "slug": "sacs",
        "symbol": "SACS",
        "hgnc": "HGNC:10519",
        "name": "sacsin molecular chaperone",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sacs"
      },
      {
        "slug": "spart",
        "symbol": "SPART",
        "hgnc": "HGNC:18514",
        "name": "spartin",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/spart"
      },
      {
        "slug": "sptan1",
        "symbol": "SPTAN1",
        "hgnc": "HGNC:11273",
        "name": "spectrin alpha, non-erythrocytic 1",
        "frequency": "obligate",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/sptan1"
      },
      {
        "slug": "sptssa",
        "symbol": "SPTSSA",
        "hgnc": "HGNC:20361",
        "name": "serine palmitoyltransferase small subunit A",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sptssa"
      },
      {
        "slug": "tecpr2",
        "symbol": "TECPR2",
        "hgnc": "HGNC:19957",
        "name": "tectonin beta-propeller repeat containing 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tecpr2"
      },
      {
        "slug": "tmem63c",
        "symbol": "TMEM63C",
        "hgnc": "HGNC:23787",
        "name": "transmembrane protein 63C",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tmem63c"
      },
      {
        "slug": "tuba4a",
        "symbol": "TUBA4A",
        "hgnc": "HGNC:12407",
        "name": "tubulin alpha 4a",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tuba4a"
      },
      {
        "slug": "vcp",
        "symbol": "VCP",
        "hgnc": "HGNC:12666",
        "name": "valosin containing protein",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vcp"
      },
      {
        "slug": "aldh18a1",
        "symbol": "ALDH18A1",
        "hgnc": "HGNC:9722",
        "name": "aldehyde dehydrogenase 18 family member A1",
        "frequency": "very-frequent",
        "diseases": 4,
        "url": "https://dantelabs.com/genes/aldh18a1"
      },
      {
        "slug": "als2",
        "symbol": "ALS2",
        "hgnc": "HGNC:443",
        "name": "alsin Rho guanine nucleotide exchange factor ALS2",
        "frequency": "very-frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/als2"
      },
      {
        "slug": "cpt1c",
        "symbol": "CPT1C",
        "hgnc": "HGNC:18540",
        "name": "carnitine palmitoyltransferase 1C",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cpt1c"
      },
      {
        "slug": "erlin2",
        "symbol": "ERLIN2",
        "hgnc": "HGNC:1356",
        "name": "ER lipid raft associated 2",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/erlin2"
      },
      {
        "slug": "kcna1",
        "symbol": "KCNA1",
        "hgnc": "HGNC:6218",
        "name": "potassium voltage-gated channel subfamily A member 1",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/kcna1"
      },
      {
        "slug": "kif1a",
        "symbol": "KIF1A",
        "hgnc": "HGNC:888",
        "name": "kinesin family member 1A",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/kif1a"
      },
      {
        "slug": "plp1",
        "symbol": "PLP1",
        "hgnc": "HGNC:9086",
        "name": "proteolipid protein 1",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/plp1"
      },
      {
        "slug": "slc33a1",
        "symbol": "SLC33A1",
        "hgnc": "HGNC:95",
        "name": "solute carrier family 33 member 1",
        "frequency": "very-frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/slc33a1"
      },
      {
        "slug": "spg7",
        "symbol": "SPG7",
        "hgnc": "HGNC:11237",
        "name": "SPG7 matrix AAA peptidase subunit, paraplegin",
        "frequency": "very-frequent",
        "diseases": 3,
        "url": "https://dantelabs.com/genes/spg7"
      },
      {
        "slug": "abcd1",
        "symbol": "ABCD1",
        "hgnc": "HGNC:61",
        "name": "ATP binding cassette subfamily D member 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/abcd1"
      },
      {
        "slug": "ap5z1",
        "symbol": "AP5Z1",
        "hgnc": "HGNC:22197",
        "name": "adaptor related protein complex 5 subunit zeta 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/ap5z1"
      },
      {
        "slug": "arsi",
        "symbol": "ARSI",
        "hgnc": "HGNC:32521",
        "name": "arylsulfatase family member I",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/arsi"
      },
      {
        "slug": "atad3a",
        "symbol": "ATAD3A",
        "hgnc": "HGNC:25567",
        "name": "ATPase family AAA domain containing 3A",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atad3a"
      },
      {
        "slug": "atl1",
        "symbol": "ATL1",
        "hgnc": "HGNC:11231",
        "name": "atlastin GTPase 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/atl1"
      },
      {
        "slug": "bscl2",
        "symbol": "BSCL2",
        "hgnc": "HGNC:15832",
        "name": "BSCL2 lipid droplet biogenesis associated, seipin",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/bscl2"
      },
      {
        "slug": "cacna1g",
        "symbol": "CACNA1G",
        "hgnc": "HGNC:1394",
        "name": "calcium voltage-gated channel subunit alpha1 G",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/cacna1g"
      },
      {
        "slug": "cyp2u1",
        "symbol": "CYP2U1",
        "hgnc": "HGNC:20582",
        "name": "cytochrome P450 family 2 subfamily U member 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cyp2u1"
      },
      {
        "slug": "ddhd1",
        "symbol": "DDHD1",
        "hgnc": "HGNC:19714",
        "name": "DDHD domain containing 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ddhd1"
      },
      {
        "slug": "ddhd2",
        "symbol": "DDHD2",
        "hgnc": "HGNC:29106",
        "name": "DDHD domain containing 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ddhd2"
      },
      {
        "slug": "dstyk",
        "symbol": "DSTYK",
        "hgnc": "HGNC:29043",
        "name": "dual serine/threonine and tyrosine protein kinase",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/dstyk"
      },
      {
        "slug": "erlin1",
        "symbol": "ERLIN1",
        "hgnc": "HGNC:16947",
        "name": "ER lipid raft associated 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/erlin1"
      },
      {
        "slug": "hspd1",
        "symbol": "HSPD1",
        "hgnc": "HGNC:5261",
        "name": "heat shock protein family D (Hsp60) member 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/hspd1"
      },
      {
        "slug": "pgap1",
        "symbol": "PGAP1",
        "hgnc": "HGNC:25712",
        "name": "post-GPI attachment to proteins inositol deacylase 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pgap1"
      },
      {
        "slug": "polr3b",
        "symbol": "POLR3B",
        "hgnc": "HGNC:30348",
        "name": "RNA polymerase III subunit B",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/polr3b"
      },
      {
        "slug": "rab3a",
        "symbol": "RAB3A",
        "hgnc": "HGNC:9777",
        "name": "RAB3A, member RAS oncogene family",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/rab3a"
      },
      {
        "slug": "shmt2",
        "symbol": "SHMT2",
        "hgnc": "HGNC:10852",
        "name": "serine hydroxymethyltransferase 2",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/shmt2"
      },
      {
        "slug": "slc25a15",
        "symbol": "SLC25A15",
        "hgnc": "HGNC:10985",
        "name": "solute carrier family 25 member 15",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/slc25a15"
      },
      {
        "slug": "uba5",
        "symbol": "UBA5",
        "hgnc": "HGNC:23230",
        "name": "ubiquitin like modifier activating enzyme 5",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/uba5"
      },
      {
        "slug": "ubap1",
        "symbol": "UBAP1",
        "hgnc": "HGNC:12461",
        "name": "ubiquitin associated protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ubap1"
      },
      {
        "slug": "usp8",
        "symbol": "USP8",
        "hgnc": "HGNC:12631",
        "name": "ubiquitin specific peptidase 8",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/usp8"
      },
      {
        "slug": "vamp1",
        "symbol": "VAMP1",
        "hgnc": "HGNC:12642",
        "name": "vesicle associated membrane protein 1",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/vamp1"
      },
      {
        "slug": "washc5",
        "symbol": "WASHC5",
        "hgnc": "HGNC:28984",
        "name": "WASH complex subunit 5",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/washc5"
      },
      {
        "slug": "wdr48",
        "symbol": "WDR48",
        "hgnc": "HGNC:30914",
        "name": "WD repeat domain 48",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/wdr48"
      },
      {
        "slug": "zfr",
        "symbol": "ZFR",
        "hgnc": "HGNC:17277",
        "name": "zinc finger RNA binding protein",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zfr"
      },
      {
        "slug": "apc",
        "symbol": "APC",
        "hgnc": "HGNC:583",
        "name": "APC regulator of Wnt signaling pathway",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/apc"
      },
      {
        "slug": "cox18",
        "symbol": "COX18",
        "hgnc": "HGNC:26801",
        "name": "cytochrome c oxidase assembly factor COX18",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cox18"
      },
      {
        "slug": "kpna3",
        "symbol": "KPNA3",
        "hgnc": "HGNC:6396",
        "name": "karyopherin subunit alpha 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kpna3"
      },
      {
        "slug": "lmnb1",
        "symbol": "LMNB1",
        "hgnc": "HGNC:6637",
        "name": "lamin B1",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/lmnb1"
      },
      {
        "slug": "plaat3",
        "symbol": "PLAAT3",
        "hgnc": "HGNC:17825",
        "name": "phospholipase A and acyltransferase 3",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/plaat3"
      },
      {
        "slug": "taco1",
        "symbol": "TACO1",
        "hgnc": "HGNC:24316",
        "name": "translational activator of cytochrome c oxidase I",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/taco1"
      },
      {
        "slug": "wls",
        "symbol": "WLS",
        "hgnc": "HGNC:30238",
        "name": "Wnt ligand secretion mediator",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/wls"
      },
      {
        "slug": "ctcf",
        "symbol": "CTCF",
        "hgnc": "HGNC:13723",
        "name": "CCCTC-binding factor",
        "frequency": "very-rare",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ctcf"
      },
      {
        "slug": "b4galnt1",
        "symbol": "B4GALNT1",
        "hgnc": "HGNC:4117",
        "name": "beta-1,4-N-acetyl-galactosaminyltransferase 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/b4galnt1"
      },
      {
        "slug": "gba2",
        "symbol": "GBA2",
        "hgnc": "HGNC:18986",
        "name": "glucosylceramidase beta 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gba2"
      },
      {
        "slug": "mecp2",
        "symbol": "MECP2",
        "hgnc": "HGNC:6990",
        "name": "methyl-CpG binding protein 2",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mecp2"
      },
      {
        "slug": "mfsd2a",
        "symbol": "MFSD2A",
        "hgnc": "HGNC:25897",
        "name": "MFSD2 lysolipid transporter A, lysophospholipid",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/mfsd2a"
      },
      {
        "slug": "nipa1",
        "symbol": "NIPA1",
        "hgnc": "HGNC:17043",
        "name": "NIPA magnesium transporter 1",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nipa1"
      },
      {
        "slug": "spast",
        "symbol": "SPAST",
        "hgnc": "HGNC:11233",
        "name": "spastin",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/spast"
      },
      {
        "slug": "spg11",
        "symbol": "SPG11",
        "hgnc": "HGNC:11226",
        "name": "SPG11 vesicle trafficking associated, spatacsin",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/spg11"
      },
      {
        "slug": "wdr26",
        "symbol": "WDR26",
        "hgnc": "HGNC:21208",
        "name": "WD repeat domain 26",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/wdr26"
      },
      {
        "slug": "zfyve26",
        "symbol": "ZFYVE26",
        "hgnc": "HGNC:20761",
        "name": "zinc finger FYVE-type containing 26",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/zfyve26"
      }
    ]
  }
}