Two novel mutations of the glycine receptor gene in a Taiwanese hyperekplexia family

Neurology. 2004 Sep 14;63(5):893-6. doi: 10.1212/01.wnl.0000138566.65519.67.

Abstract

The authors report a Taiwanese family with autosomal recessive hyperekplexia. Two novel mutations, W96C (from the paternal allele) and R344X (from the maternal allele), which are located in exon 4 and exon 7 of the GLRA1 gene, were identified in this family. A series of electrophysiologic investigations were conducted in one of the probands, and the results suggest that the "startle center" is located subcortically.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustic Stimulation
  • Adult
  • Amino Acid Substitution
  • Brain / physiopathology
  • DNA Mutational Analysis
  • Electromyography
  • Evoked Potentials, Motor
  • Female
  • Genes, Recessive
  • Humans
  • Magnetics
  • Mutation, Missense*
  • Pedigree
  • Physical Stimulation
  • Point Mutation*
  • Polymorphism, Single-Stranded Conformational
  • Receptors, Glycine / genetics*
  • Reflex, Abnormal / genetics*
  • Reflex, Startle / genetics*
  • Reflex, Startle / physiology
  • Reflex, Stretch / genetics*
  • Sequence Analysis, DNA
  • Taiwan / epidemiology

Substances

  • GLRA1 protein, human
  • Receptors, Glycine