ACAD9, CPEO, Leigh syndrome, LHON, FRDA, MELAS, MERRF, Methylmalonic aciduria, MIDD, MLASA, MNGIE, NARP, NDFUF2, NDUFV2, NDUFAF1, PEO, Sengers Syndrome, TMEM70 deficiency, SANDO, SCAE. This evidence concerns the gene TWNK and spinocerebellar ataxia with epilepsy.