| Literature DB >> 1709275 |
J Lauber1, C Marsac, B Kadenbach, P Seibel.
Abstract
We have sequenced the tRNA genes of mtDNA from patients with chronic progressive external ophthalmoplegia (CPEO) without detectable mtDNA deletions. Four point mutations were identified, located within highly conserved regions of mitochondrial tRNA genes, namely tRNA(Leu)(UAG), tRNA(Ser)(GCU), tRNA(Gly) and tRNA(Lys). One of these mutations (tRNA(Leu)(UAG)) was found in four patients with different forms of mitochondrial myopathy. An accumulation of three different tRNA point mutations (tRNA(Leu)(UAG)), tRNA(Ser)(GCU) and tRNA(Gly) was observed in a single patient, suggesting that mitochondrial tRNA genes represent hotspots for point mutations causing neuromuscular diseases.Entities:
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Year: 1991 PMID: 1709275 PMCID: PMC333891 DOI: 10.1093/nar/19.7.1393
Source DB: PubMed Journal: Nucleic Acids Res ISSN: 0305-1048 Impact factor: 16.971