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9 patient data entries in database for clusters A467T and 5. Entry
# | | Mutations | | allele 1 | allele 2 |
| Clinical representation | Symptoms | Age group | Age of onset | Age of patient | Age of death | Reference | | | 141 | A467T2
| P625R5
| Seizures onset at age 1, death via VPA induced liver failure at age 2. | | | 1 | n/a | 2 | Baruffini et al, 2011; [view data] | | 178 | A467T2
| F749S5
| Authors report N/A. 6% mtDNA copy number in blood. | | | n/a | 0.8 | n/a | Tang et al, 2011; [view data] | | 126 | F749S5
| A467T2
| Intractable seizure, abrubt onset of seizure. 15% mtDNA copy number in blood. | | | n/a | 6 | n/a | Tang et al, 2011; [view data] | | 115 | R627W5
| A467T2
| Onset at 32 years with encephalopathy, PEO, ataxia, dysphagia, myopathy, neuropathy and cardiomyopathy, hearing loss. Death at 41 years. | | - | movement disorder (ataxia) | |
| | 32 | n/a | 41 | Horvath et al, 2006; [view data] | | 116 | R627W5
| A467T2
| PEO, SANDO (Horvath 2006 or Van goethem 2003) sensory ataxic neuropathy, PEO, dysarthria. | | | 20 | n/a | n/a | Horvath et al, 2006; [view data] | | 117 | R627W5
| A467T2
| Onset at 39 years with PEO, ataxia, myopathy, and hearing loss. | | - | movement disorder (ataxia) | |
| | 39 | n/a | n/a | Horvath et al, 2006; [view data] | | 240 | R627Q5
Q1236H
| A467T2
| developed progressive blepharoptosis at the age of 20 and ophthalmoplegia during subsequent years, at 35, the patient developed progressive unsteadiness of gait. She noted fatigue, myalgia and cramps, which were triggered by moderate exercise. At 44, restless legs syndrome, deficits in memory and concentration, and suffered from recurrent episodes of depression, at 46 showed bilateral blepharoptosis, limited eye movements in all directions except downwards, lateral rotatory nystagmus and slight upbeat nystagmus in upward gaze, but no saccades. She had facial muscle weakness, dysarthria and slight proximal muscle weakness. She had glove and stockinglike hypoesthesia, distally impaired vibration sense, absent ankle reflexes and weak other tendon reflexes, as well as mild dysmetria. Her gait was broad-based, with further impairment with eyes closed. Tandem gait was impaired. deltoid muscle showed myopathic features, structurally abnormal mitochondria with para-crystalline inclusions, | | | 20 | 46 | n/a | Luoma et al, 2005; [view data] | | 507 | R627Q5
| A467T2
| Ataxia, ptosis, myalgia, sensory neuropathy, motor neuropathy, axonal neuropathy, demyelinating neuropathy. | | - | movement disorder (ataxia) | |
| - | demyelinating neuropathy | |
| | 46 | 50 | n/a | Hanisch et al, 2014; [view data] | | 262 | F749S5
| A467T2
| Alpers | | | n/a | n/a | n/a | Nguyen et al, 2006; [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. Number of displayed patient cases: 9
Avg age of onset in displayed cases: 20.6
Std dev in onset in displayed cases: 16.2
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