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GENATLAS PHENOTYPE
last update : 29-08-2012
Symbol MTMPEI
Location mt
Name mitochondrial myopathy, with progressive exercice intolerance
Corresponding gene MT-CYB , MT-TN
Main clinical features
  • exercise intolerance with muscle weakness and myopathy on electromyography and hyperlactic acidemia, and with low activity of respiratory chain complex III in muscle
  • in any cases associated to progressive external ophthalmoplegia
  • Genetic determination mitochondrial
    Function/system disorder neuromuscular
    Type disease
    Gene product
    Name . cytochrome b (G290D, 15615 nt) . MT-TN (m.5669G>A)
    Remark(s)