1157A>T (missense) |
N386I |
Infantile |
Multifocal seizures, macrocephaly, hypotonia with spasticity, neurologic deterioration, and white matter abnormalities |
[26] |
1178G>T missense |
S393I |
Adult |
Spastic paraparesis, bilateral Babinski sign, tetrahyperreflexia, dysphagia, dysarthria pseudobulbar speech, and brain stem atrophy |
[27–29] |
1193C>T missense |
S398F |
Adult |
Spastic gait, dysarthria, dysphagia, and atrophy of medulla oblongata |
[30] |
1193C>A missense |
S398Y |
Adult |
Atrophy of medulla oblongata |
[27,28] |
1247–1249 GGG>GG deletion |
D417M14X |
Infantile |
Frontal cerebral atrophy and white matter abnormalities |
[12] |