| 3 patient data entries collated from reference Hudson et al, 2006. | Entry #
 | | Mutations |  | allele 1 | allele 2 | 
 | Clinical representation | Symptoms | Age group | Patient age | Age of onset | Age of death |  |  |  | 595 | E1143G 
 | S433C1 
 | PEO, ataxia, peripheral neuropathy, and episodes of encephalopathy. Asymptomatic mother had also S433C. | | - | movement disorder (ataxia) |  |
 |  | n/a | n/a | n/a |  | 596 | Nonsense mutation:
 Y452X
 
 |  | PEO, proximal weakness, and dysphagia and was heterozygous for (Y452X). |  |  | n/a | n/a | n/a |  | 597 | Nonsense mutation:
 Y452X
 
 |  | PEO and distal weakness. |  |  | n/a | n/a | n/a | 
 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. |