Abstract
We analyzed genomic DNA from ALS patients for mutations in the apurinic/apyrimidinic endonuclease (APEX nuclease) gene. We identified three rare polymorphisms in the untranslated region of the gene and one common two-allele polymorphism (D148E). The allelic frequency D148E was significantly different in sporadic ALS patients compared with controls. A conserved amino acid change and a 4-base pair deletion were also identified in sporadic ALS patients. These data suggest that APEX nuclease may contribute to the etiology of ALS.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Amyotrophic Lateral Sclerosis / genetics*
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Carbon-Oxygen Lyases / genetics*
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DNA Mutational Analysis
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DNA Primers
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DNA-(Apurinic or Apyrimidinic Site) Lyase
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Deoxyribonuclease IV (Phage T4-Induced)
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Humans
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Polymerase Chain Reaction
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Polymorphism, Genetic / genetics
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Polymorphism, Single-Stranded Conformational
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Superoxide Dismutase / genetics*
Substances
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DNA Primers
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Superoxide Dismutase
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Deoxyribonuclease IV (Phage T4-Induced)
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Carbon-Oxygen Lyases
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DNA-(Apurinic or Apyrimidinic Site) Lyase