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 1 patient data entry in database for mutations A467T and S1104C. Entry # | | Mutations |  | allele 1 | allele 2 |  
  | Clinical representation | Symptoms | Age group | Age of onset | Age of patient | Age of death | Reference |   |  | 227 | A467T2
  | S1104C1
  | PEO, bilateral ptosis, severe limita- tion of ocular motility, and a mosaic distribution of ragged-red and cytochrome c oxidase–negative fibers in the muscle biopsy. All patients had multiple deletions of muscle mtDNA. |  |  | 48 | n/a | n/a | Agostino et al, 2003; [view data]  |  
 1-5 pathogenic cluster assignment of mutations. Mutations displayed without a superscript number are outside of the assigned pathogenic clusters. See cluster definitions for details. 
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