Molecular genetic analysis of the APEX nuclease gene in amyotrophic lateral sclerosis

Neurology. 1999 Jun 10;52(9):1899-901. doi: 10.1212/wnl.52.9.1899.

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

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Amyotrophic Lateral Sclerosis / genetics*
  • Carbon-Oxygen Lyases / genetics*
  • DNA Mutational Analysis
  • DNA Primers
  • DNA-(Apurinic or Apyrimidinic Site) Lyase
  • Deoxyribonuclease IV (Phage T4-Induced)
  • Humans
  • Polymerase Chain Reaction
  • Polymorphism, Genetic / genetics
  • Polymorphism, Single-Stranded Conformational
  • Superoxide Dismutase / genetics*

Substances

  • DNA Primers
  • Superoxide Dismutase
  • Deoxyribonuclease IV (Phage T4-Induced)
  • Carbon-Oxygen Lyases
  • DNA-(Apurinic or Apyrimidinic Site) Lyase