Article
A mitochondrial DNA variant, identified in Leber hereditary optic neuropathy patients, which extends the amino acid sequence of cytochrome c oxidase subunit I.
American journal of human genetics - 1 Aug 1992
Brown M D, Yang C C, Trounce I, Torroni A, Lott M T, Wallace D C
Abstract excerpt
A G-to-A transition at nucleotide pair (np) 7444 in the mtDNA was found to correlate with Leber hereditary optic neuropathy (LHON). The mutation eliminates the termination codon of the cytochrome c oxidase subunit I (COI) gene, extending the COI polypeptide by three amino acids. The mutation was discovered as an XbaI restriction-endonuclease-site loss present in 2 (9.1%) of 22 LHON patients who lacked the np...
Topics
- Amino Acid Sequence
- Base Sequence
- DNA, Mitochondrial
- Electron Transport Complex IV
- Electrophoresis, Polyacrylamide Gel
- Humans
- Molecular Sequence Data
- Mutation
- Optic Atrophies, Hereditary
- Phylogeny