Abstract:
:A woman with typical features of myoclonic epilepsy with ragged red fibers (MERRF) had a novel heteroplasmic mutation (G611A) in the mitochondrial DNA tRNA phenylalanine gene. The mutation was heteroplasmic (91%) in muscle but undetectable in accessible tissues from the patient and her maternal relatives. Single-fiber PCR analysis showed that the proportion of mutant genomes was higher in cytochrome c oxidase (COX)-negative ragged red fibers (RRFs) than in COX-positive non-RRFs. This report shows that typical MERRF syndrome is not always associated with tRNA lysine mutations.
journal_name
Neurologyjournal_title
Neurologyauthors
Mancuso M,Filosto M,Mootha VK,Rocchi A,Pistolesi S,Murri L,DiMauro S,Siciliano Gdoi
10.1212/01.wnl.0000127608.48406.f1subject
Has Abstractpub_date
2004-06-08 00:00:00pages
2119-21issue
11eissn
0028-3878issn
1526-632Xjournal_volume
62pub_type
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