{
  "url": "https://dantelabs.com/ro/genes/mt-nd2",
  "gene": {
    "slug": "mt-nd2",
    "symbol": "MT-ND2",
    "name": "mitochondrially encoded NADH:ubiquinone oxidoreductase core subunit 2",
    "hgnc": "HGNC:7456",
    "summary": null,
    "location": "mitochondria",
    "locusType": "gene with protein product",
    "aliases": [
      "ND2",
      "NAD2"
    ],
    "previousSymbols": [
      "MTND2"
    ],
    "ensemblId": "ENSG00000198763",
    "entrezId": 4536,
    "omim": [
      "516001"
    ],
    "uniprot": [
      "P03891"
    ],
    "model": null,
    "grch37": {
      "build": "GRCh37",
      "release": "87",
      "chrom": "MT",
      "start": 4470,
      "end": 5511,
      "strand": "+"
    },
    "neighbourhood": null,
    "reports": [],
    "pharmacogenomics": [],
    "traits": [],
    "phenotypes": [
      {
        "slug": "color-vision-defect",
        "name": "Abnormal color vision",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/color-vision-defect"
      },
      {
        "slug": "abnormal-electroretinogram",
        "name": "Abnormal electroretinogram",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/abnormal-electroretinogram"
      },
      {
        "slug": "arrhythmia",
        "name": "Abnormal heart rate",
        "systems": [
          "abnormality-of-the-cardiovascular-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/arrhythmia"
      },
      {
        "slug": "abnormal-mitochondria-in-muscle-tissue",
        "name": "Abnormal mitochondria in muscle tissue",
        "systems": [
          "abnormal-cellular-phenotype",
          "abnormality-of-metabolism-homeostasis",
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/abnormal-mitochondria-in-muscle-tissue"
      },
      {
        "slug": "abnormal-prosody",
        "name": "Abnormal prosody",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/abnormal-prosody"
      },
      {
        "slug": "abnormal-renal-tubule-morphology",
        "name": "Abnormal renal tubule morphology",
        "systems": [
          "abnormality-of-the-genitourinary-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/abnormal-renal-tubule-morphology"
      },
      {
        "slug": "abnormality-of-krebs-cycle-metabolism",
        "name": "Abnormality of Krebs cycle metabolism",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/abnormality-of-krebs-cycle-metabolism"
      },
      {
        "slug": "abnormality-of-visual-evoked-potentials",
        "name": "Abnormality of visual evoked potentials",
        "systems": [
          "abnormality-of-the-eye",
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/abnormality-of-visual-evoked-potentials"
      },
      {
        "slug": "microcephaly",
        "name": "Abnormally small head",
        "systems": [
          "abnormality-of-head-or-neck",
          "abnormality-of-the-musculoskeletal-system",
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/microcephaly"
      },
      {
        "slug": "apnea",
        "name": "Apnea",
        "systems": [
          "abnormality-of-the-respiratory-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/apnea"
      },
      {
        "slug": "ataxia",
        "name": "Ataxia",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/ataxia"
      },
      {
        "slug": "central-scotoma",
        "name": "Blind spot located at fixation point",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/central-scotoma"
      },
      {
        "slug": "blindness",
        "name": "Blindness",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/blindness"
      },
      {
        "slug": "blurred-vision",
        "name": "Blurred vision",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/blurred-vision"
      },
      {
        "slug": "dyspnea",
        "name": "Breathing difficulty",
        "systems": [
          "abnormality-of-the-respiratory-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/dyspnea"
      },
      {
        "slug": "bulbar-signs",
        "name": "Bulbar signs",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/bulbar-signs"
      },
      {
        "slug": "cardiac-conduction-abnormality",
        "name": "Cardiac conduction abnormality",
        "systems": [
          "abnormality-of-the-cardiovascular-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/cardiac-conduction-abnormality"
      },
      {
        "slug": "central-retinal-vessel-vascular-tortuosity",
        "name": "Central retinal vessel vascular tortuosity",
        "systems": [
          "abnormality-of-head-or-neck",
          "abnormality-of-the-cardiovascular-system",
          "abnormality-of-the-eye"
        ],
        "url": "https://dantelabs.com/traits/central-retinal-vessel-vascular-tortuosity"
      },
      {
        "slug": "centrocecal-scotoma",
        "name": "Centrocecal scotoma",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/centrocecal-scotoma"
      },
      {
        "slug": "chorea",
        "name": "Chorea",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/chorea"
      },
      {
        "slug": "strabismus",
        "name": "Cross-eyed",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/strabismus"
      },
      {
        "slug": "optic-neuropathy",
        "name": "Damaged optic nerve",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/optic-neuropathy"
      },
      {
        "slug": "decreased-activity-of-mitochondrial-complex-i",
        "name": "Decreased activity of mitochondrial complex I",
        "systems": [
          "abnormal-cellular-phenotype",
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "obligate",
        "url": "https://dantelabs.com/traits/decreased-activity-of-mitochondrial-complex-i"
      },
      {
        "slug": "decreased-circulating-citrulline-concentration",
        "name": "Decreased circulating citrulline concentration",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "very-rare",
        "url": "https://dantelabs.com/traits/decreased-circulating-citrulline-concentration"
      },
      {
        "slug": "floppy-infant",
        "name": "Decreased muscle tone in infant",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/floppy-infant"
      },
      {
        "slug": "hyporeflexia",
        "name": "Decreased reflex response",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/hyporeflexia"
      },
      {
        "slug": "demyelinating-peripheral-neuropathy",
        "name": "Demyelinating peripheral neuropathy",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/demyelinating-peripheral-neuropathy"
      },
      {
        "slug": "diabetes-mellitus",
        "name": "Diabetes mellitus",
        "systems": [
          "abnormality-of-metabolism-homeostasis",
          "abnormality-of-the-endocrine-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/diabetes-mellitus"
      },
      {
        "slug": "dyskinesia",
        "name": "Disorder of involuntary muscle movements",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/dyskinesia"
      },
      {
        "slug": "ptosis",
        "name": "Drooping upper eyelid",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/ptosis"
      },
      {
        "slug": "dystonia",
        "name": "Dystonia",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/dystonia"
      },
      {
        "slug": "encephalopathy",
        "name": "Encephalopathy",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/encephalopathy"
      },
      {
        "slug": "hypertrophic-cardiomyopathy",
        "name": "Enlarged and thickened heart muscle",
        "systems": [
          "abnormality-of-the-cardiovascular-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/hypertrophic-cardiomyopathy"
      },
      {
        "slug": "hepatomegaly",
        "name": "Enlarged liver",
        "systems": [
          "abnormality-of-the-digestive-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/hepatomegaly"
      },
      {
        "slug": "seizure",
        "name": "Epilepsy",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/seizure"
      },
      {
        "slug": "episodic-respiratory-distress",
        "name": "Episodic difficulty breathing",
        "systems": [
          "abnormality-of-the-respiratory-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/episodic-respiratory-distress"
      },
      {
        "slug": "episodic-vomiting",
        "name": "Episodic vomiting",
        "systems": [
          "abnormality-of-the-digestive-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/episodic-vomiting"
      },
      {
        "slug": "failure-to-thrive",
        "name": "Faltering weight",
        "systems": [
          "growth-abnormality"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/failure-to-thrive"
      },
      {
        "slug": "feeding-difficulties",
        "name": "Feeding difficulties",
        "systems": [
          "abnormality-of-the-digestive-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/feeding-difficulties"
      },
      {
        "slug": "fetal-distress",
        "name": "Fetal distress",
        "systems": [
          "abnormality-of-prenatal-development-or-birth"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/fetal-distress"
      },
      {
        "slug": "fever",
        "name": "Fever",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/fever"
      },
      {
        "slug": "focal-t2-hyperintense-basal-ganglia-lesion",
        "name": "Focal T2 hyperintense basal ganglia lesion",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/focal-t2-hyperintense-basal-ganglia-lesion"
      },
      {
        "slug": "focal-t2-hyperintense-brainstem-lesion",
        "name": "Focal T2 hyperintense brainstem lesion",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/focal-t2-hyperintense-brainstem-lesion"
      },
      {
        "slug": "generalized-myoclonic-seizure",
        "name": "Generalized myoclonic seizure",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/generalized-myoclonic-seizure"
      },
      {
        "slug": "global-developmental-delay",
        "name": "Global developmental delay",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/global-developmental-delay"
      },
      {
        "slug": "bilateral-tonic-clonic-seizure",
        "name": "Grand mal seizures",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/bilateral-tonic-clonic-seizure"
      },
      {
        "slug": "lacticaciduria",
        "name": "High urine lactic acid levels",
        "systems": [
          "abnormality-of-metabolism-homeostasis",
          "abnormality-of-the-genitourinary-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/lacticaciduria"
      },
      {
        "slug": "increased-circulating-lactate-concentration",
        "name": "Higher than normal levels of lactate in blood",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/increased-circulating-lactate-concentration"
      },
      {
        "slug": "hypothermia",
        "name": "Hypothermia",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/hypothermia"
      },
      {
        "slug": "gait-ataxia",
        "name": "Inability to coordinate movements when walking",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/gait-ataxia"
      },
      {
        "slug": "hyperalaninemia",
        "name": "Increased blood alanine",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/hyperalaninemia"
      },
      {
        "slug": "increased-circulating-pyruvate-concentration",
        "name": "Increased circulating pyruvate concentration",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/increased-circulating-pyruvate-concentration"
      },
      {
        "slug": "increased-csf-lactate",
        "name": "Increased CSF lactate",
        "systems": [
          "abnormality-of-metabolism-homeostasis",
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/increased-csf-lactate"
      },
      {
        "slug": "lactic-acidosis",
        "name": "Increased lactate in body",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/lactic-acidosis"
      },
      {
        "slug": "hyperreflexia",
        "name": "Increased reflexes",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/hyperreflexia"
      },
      {
        "slug": "infantile-spasms",
        "name": "Infantile spasms",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/infantile-spasms"
      },
      {
        "slug": "spasticity",
        "name": "Involuntary muscle stiffness, contraction, or spasm",
        "systems": [
          "abnormality-of-the-musculoskeletal-system",
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/spasticity"
      },
      {
        "slug": "nystagmus",
        "name": "Involuntary, rapid, rhythmic eye movements",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/nystagmus"
      },
      {
        "slug": "leber-optic-atrophy",
        "name": "Leber optic atrophy",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "url": "https://dantelabs.com/traits/leber-optic-atrophy"
      },
      {
        "slug": "lethargy",
        "name": "Lethargy",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/lethargy"
      },
      {
        "slug": "leukodystrophy",
        "name": "Leukodystrophy",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/leukodystrophy"
      },
      {
        "slug": "leukoencephalopathy",
        "name": "Leukoencephalopathy",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/leukoencephalopathy"
      },
      {
        "slug": "hepatic-failure",
        "name": "Liver failure",
        "systems": [
          "abnormality-of-the-digestive-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/hepatic-failure"
      },
      {
        "slug": "developmental-regression",
        "name": "Loss of developmental milestones",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/developmental-regression"
      },
      {
        "slug": "hypoglycemia",
        "name": "Low blood sugar",
        "systems": [
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/hypoglycemia"
      },
      {
        "slug": "hypotonia",
        "name": "Low muscle tone",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/hypotonia"
      },
      {
        "slug": "mitochondrial-myopathy",
        "name": "Mitochondrial myopathy",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/mitochondrial-myopathy"
      },
      {
        "slug": "mitochondrial-respiratory-chain-defects",
        "name": "Mitochondrial respiratory chain defects",
        "systems": [
          "abnormal-cellular-phenotype",
          "abnormality-of-metabolism-homeostasis"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/mitochondrial-respiratory-chain-defects"
      },
      {
        "slug": "multiple-glomerular-cysts",
        "name": "Multiple glomerular cysts",
        "systems": [
          "abnormality-of-the-genitourinary-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/multiple-glomerular-cysts"
      },
      {
        "slug": "myopathy",
        "name": "Muscle tissue disease",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/myopathy"
      },
      {
        "slug": "muscle-weakness",
        "name": "Muscle weakness",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/muscle-weakness"
      },
      {
        "slug": "sensorimotor-neuropathy",
        "name": "Nerve damage causing decreased feeling and movement",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/sensorimotor-neuropathy"
      },
      {
        "slug": "optic-atrophy",
        "name": "Optic atrophy",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/optic-atrophy"
      },
      {
        "slug": "optic-disc-pallor",
        "name": "Optic disc pallor",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/optic-disc-pallor"
      },
      {
        "slug": "paroxysmal-involuntary-eye-movements",
        "name": "Paroxysmal involuntary eye movements",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/paroxysmal-involuntary-eye-movements"
      },
      {
        "slug": "polyneuropathy",
        "name": "Peripheral nerve disease",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "url": "https://dantelabs.com/traits/polyneuropathy"
      },
      {
        "slug": "peripheral-neuropathy",
        "name": "Peripheral neuropathy",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/peripheral-neuropathy"
      },
      {
        "slug": "pigmentary-retinopathy",
        "name": "Pigmentary retinopathy",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/pigmentary-retinopathy"
      },
      {
        "slug": "reduced-eye-contact",
        "name": "Poor eye contact",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/reduced-eye-contact"
      },
      {
        "slug": "poor-head-control",
        "name": "Poor head control",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/poor-head-control"
      },
      {
        "slug": "dysphagia",
        "name": "Poor swallowing",
        "systems": [
          "abnormality-of-the-digestive-system",
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/dysphagia"
      },
      {
        "slug": "postural-tremor",
        "name": "Postural tremor",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/postural-tremor"
      },
      {
        "slug": "intrauterine-growth-retardation",
        "name": "Prenatal growth deficiency",
        "systems": [
          "growth-abnormality"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/intrauterine-growth-retardation"
      },
      {
        "slug": "progressive-visual-loss",
        "name": "Progressive loss of vision",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/progressive-visual-loss"
      },
      {
        "slug": "proximal-tubulopathy",
        "name": "Proximal tubulopathy",
        "systems": [
          "abnormality-of-the-genitourinary-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/proximal-tubulopathy"
      },
      {
        "slug": "ragged-red-muscle-fibers",
        "name": "Ragged-red muscle fibers",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "very-rare",
        "url": "https://dantelabs.com/traits/ragged-red-muscle-fibers"
      },
      {
        "slug": "hyperventilation",
        "name": "Rapid breathing",
        "systems": [
          "abnormality-of-the-respiratory-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/hyperventilation"
      },
      {
        "slug": "reduced-contrast-sensitivity",
        "name": "Reduced contrast sensitivity",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/reduced-contrast-sensitivity"
      },
      {
        "slug": "respiratory-insufficiency",
        "name": "Respiratory function loss",
        "systems": [
          "abnormality-of-the-respiratory-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/respiratory-insufficiency"
      },
      {
        "slug": "retinal-nerve-fiber-edema",
        "name": "Retinal nerve fiber edema",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/retinal-nerve-fiber-edema"
      },
      {
        "slug": "retinal-telangiectasia",
        "name": "Retinal telangiectasia",
        "systems": [
          "abnormality-of-the-cardiovascular-system",
          "abnormality-of-the-eye",
          "abnormality-of-the-integument"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/retinal-telangiectasia"
      },
      {
        "slug": "retinal-vascular-tortuosity",
        "name": "Retinal vascular tortuosity",
        "systems": [
          "abnormality-of-the-cardiovascular-system",
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/retinal-vascular-tortuosity"
      },
      {
        "slug": "rod-cone-dystrophy",
        "name": "Rod-cone dystrophy",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/rod-cone-dystrophy"
      },
      {
        "slug": "segmental-peripheral-demyelination-remyelination",
        "name": "Segmental peripheral demyelination/remyelination",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/segmental-peripheral-demyelination-remyelination"
      },
      {
        "slug": "sensorineural-hearing-impairment",
        "name": "Sensorineural hearing impairment",
        "systems": [
          "abnormality-of-the-ear"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/sensorineural-hearing-impairment"
      },
      {
        "slug": "severe-global-developmental-delay",
        "name": "Severe global developmental delay",
        "systems": [
          "abnormality-of-the-nervous-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/severe-global-developmental-delay"
      },
      {
        "slug": "slow-decrease-in-visual-acuity",
        "name": "Slow decrease in sharpness of vision",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/slow-decrease-in-visual-acuity"
      },
      {
        "slug": "hypertonia",
        "name": "Spasticity and rigidity of muscles",
        "systems": [
          "abnormality-of-the-musculoskeletal-system"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/hypertonia"
      },
      {
        "slug": "dilated-cardiomyopathy",
        "name": "Stretched and thinned heart muscle",
        "systems": [
          "abnormality-of-the-cardiovascular-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/dilated-cardiomyopathy"
      },
      {
        "slug": "ventricular-preexcitation",
        "name": "Ventricular preexcitation",
        "systems": [
          "abnormality-of-the-cardiovascular-system"
        ],
        "frequency": "occasional",
        "url": "https://dantelabs.com/traits/ventricular-preexcitation"
      },
      {
        "slug": "visual-loss",
        "name": "Visual loss",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "url": "https://dantelabs.com/traits/visual-loss"
      },
      {
        "slug": "vomiting",
        "name": "Vomiting",
        "systems": [
          "abnormality-of-the-digestive-system"
        ],
        "frequency": "very-frequent",
        "url": "https://dantelabs.com/traits/vomiting"
      },
      {
        "slug": "ophthalmoparesis",
        "name": "Weakness of muscles controlling eye movement",
        "systems": [
          "abnormality-of-the-eye"
        ],
        "frequency": "frequent",
        "url": "https://dantelabs.com/traits/ophthalmoparesis"
      }
    ],
    "related": [],
    "sources": null,
    "locusKind": "proteinCoding"
  },
  "variants": {
    "total": 0,
    "url": null,
    "items": []
  }
}