Human GABA(B) receptor 1 gene: Eight novel sequence variants

Fuki M. Hisama, Jeffrey R. Gruen, Jenny Choi, Masha Huseinovic, Elena L. Grigorenko, David Pauls, Richard H. Mattson, Joel Gelernter, Frank B. Wood, Vita L. Goei

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


GABA (gamma-aminobutyric acid) is the principal inhibitory neurotransmitter in the brain. The human GABA(B) receptor (GABBR1) maps to the human leukocyte antigen (HLA) region of chromosome 6. Its function and location in a susceptibility region for schizophrenia, epilepsy, and dyslexia make GABBR1 a candidate gene for neurobehavioral disorders. We report the characterization of GABBR1 gene mutations in 100 chromosomes from a mixed American population. Eleven distinct mutations were found, including two previously reported missense mutations (A20V and G489S) and a previously reported silent 1977 T>C transition. Here, we report four novel silent substitutions (39C>T, 1473T>C, 1476T>C, 1545T>C) and four novel intron variants. These DNA variants may be useful in association and linkage studies of neurobehavioral disorders, and in pharmacogenetic studies of drugs targeting GABBR1.

Original languageEnglish (US)
Pages (from-to)349-350
Number of pages2
JournalHuman Mutation
Issue number4
StatePublished - Apr 2001

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)


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