Complete mitochondrial DNA sequence analysis in a family with early-onset dystonia and optic atrophy
Identifieur interne : 005A34 ( Main/Merge ); précédent : 005A33; suivant : 005A35Complete mitochondrial DNA sequence analysis in a family with early-onset dystonia and optic atrophy
Auteurs : Michael D. Brown [États-Unis] ; Seyed Hosseini [États-Unis] ; Israel Steiner [Israël] ; Douglas C. Wallace [États-Unis] ; Isabelle Korn-Lubetzki [Israël]Source :
- Movement disorders [ 0885-3185 ] ; 2004.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
The combination of optic atrophy and dystonia has been etiologically associated with mitochondrial DNA (mtDNA) mutations. We report here on the complete mtDNA sequence from the proband of a consanguineous family exhibiting "mitochondrial-like" optic atrophy and dystonia. A candidate tRNAGly mutation was identified that was unique to the family. However, the mutation was homoplasmic in both affected and unaffected family members and we were unable to demonstrate a biochemical defect in patient mitochondria. Hence, it is unlikely that a mtDNA mutation accounts for the phenotype in this family.
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Pascal:04-0365464Le document en format XML
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<series><title level="j" type="main">Movement disorders</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Dystonia</term>
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<term>Nervous system diseases</term>
<term>Nucleotide sequence</term>
<term>Optic ataxia</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Dystonie</term>
<term>DNA mitochondrial</term>
<term>Séquence nucléotide</term>
<term>Ataxie optique</term>
<term>Système nerveux pathologie</term>
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<front><div type="abstract" xml:lang="en">The combination of optic atrophy and dystonia has been etiologically associated with mitochondrial DNA (mtDNA) mutations. We report here on the complete mtDNA sequence from the proband of a consanguineous family exhibiting "mitochondrial-like" optic atrophy and dystonia. A candidate tRNA<sup>Gly</sup>
mutation was identified that was unique to the family. However, the mutation was homoplasmic in both affected and unaffected family members and we were unable to demonstrate a biochemical defect in patient mitochondria. Hence, it is unlikely that a mtDNA mutation accounts for the phenotype in this family.</div>
</front>
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<name sortKey="Korn Lubetzki, Isabelle" sort="Korn Lubetzki, Isabelle" uniqKey="Korn Lubetzki I" first="Isabelle" last="Korn-Lubetzki">Isabelle Korn-Lubetzki</name>
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