RT Journal Article SR Electronic T1 Fluorinated γ-Aminobutyric Acid JF Molecular Pharmacology JO Mol Pharmacol FD American Society for Pharmacology and Experimental Therapeutics SP 46 OP 53 VO 6 IS 1 A1 JAY C. UNKELESS A1 PETER GOLDMAN YR 1970 UL http://molpharm.aspetjournals.org/content/6/1/46.abstract AB Glutamate decarboxylase (EC 4.1.1.15) of Escherichia coli reacts with L-γ-fluoroglutamate to form α-fluoro-γ-aminobutyric acid. This reaction has been characterized, and the two fluorinated amino acids have been investigated as selective inhibitors of γ-aminobutyric acid metabolism in the nervous system. L-γ-Fluoroglutamate inhibits the glutamate decarboxylase from calf brain (Ki = 1.4 x 10-2 M) at concentrations comparable to the Km of this enzyme for glutamate (10-2 M). In addition, α-fluoro-γ-aminobutyric acid inhibits the uptake of γ-aminobutyric acid in a nerve-muscle preparatiom from lobster.