Abstract
We report the nucleotidic mapping of a 4,666 base pairs deletion of the human mitochondrial DNA localized at positions 8571 and 13237 in a Kearns-Sayre syndrome patient. The gene fusion between the 15 N terminal amino acid residues of ATP synthetase subunit 6 and the 303 C terminal aminoacids of NADH dehydrogenase yields a potential protein of 35,000 d MW called A6-ND5. Deletion boundaries show a short inverted repeat ATCXTA. The heteroplasmic deletion mechanism is discussed in view of these data.
MeSH terms
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Amino Acid Sequence
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Base Sequence
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Chromosome Deletion*
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Cloning, Molecular
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DNA, Mitochondrial / genetics*
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DNA-Directed DNA Polymerase
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Gene Amplification
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Humans
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Kearns-Sayre Syndrome / genetics*
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Models, Genetic
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Molecular Sequence Data
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NADH Dehydrogenase / genetics
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Nucleotide Mapping
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Ophthalmoplegia / genetics*
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Proton-Translocating ATPases / genetics
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Taq Polymerase
Substances
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DNA, Mitochondrial
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NADH Dehydrogenase
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Taq Polymerase
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DNA-Directed DNA Polymerase
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Proton-Translocating ATPases