| 1 patient data entry in database for mutations Q1236H and E1143G. | Entry #
 | | Mutations |  | allele 1 | allele 2 | 
 | Clinical representation | Symptoms | Age group | Age of onset | Age of patient | Age of death | Reference |  |  |  | 167 | H1110Y1 Q1236H
 
 | W748S5 E1143G
 
 | Hypotonia at 8 weeks, seizures, hepatopathy, lactic acidemia, died of liver failure. 9% mtDNA copy number in muscle, 11% mtDNA copy number in liver. |  |  | 0.1 | n/a | 0.8 | Taanman et al, 2009; [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. |