Conditions / Genetic

mitochondrial complex IV deficiency nuclear type 14

info ยท Genetic

A COX deficiency, benign infantile mitochondrial myopathy that has_material_basis_in compound heterozygous mutation in the COA3 gene on chromosome 17q21.2.

Signs and symptoms

  • Epicanthus
  • Cognitive impairment
  • Short stature
  • Sensorimotor neuropathy
  • Deeply set eye
  • Global developmental delay
  • Decreased activity of mitochondrial complex IV
  • Obesity
  • Cytochrome C oxidase-negative muscle fibers
  • Exercise intolerance

Also known as: MC4DN14