Synthesis and evaluation of novel aromatic substrates and competitive inhibitors of GABA aminotransferase

Michael D. Clift, Richard B. Silverman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The design, synthesis, and evaluation of novel γ-aminobutyric acid aminotransferase (GABA-AT) inhibitors and inactivators can lead to the discovery of new GABA-related therapeutics. To this end, a series of aromatic amino acid compounds was synthesized to aid in the design of new inhibitors and inactivators of GABA-AT. All compounds were tested as competitive inhibitors of GABA-AT. The amino acids with benzylic amines were also tested as substrates for GABA-AT. It was found that these compounds were all poor competitive inhibitors of GABA-AT, but some were substrates of the enzyme, suggesting their utility as scaffolds for potential GABA-AT mechanism-based inactivators. Computer modeling was used to rationalize the substrate activity of the various compounds.

Original languageEnglish (US)
Pages (from-to)3122-3125
Number of pages4
JournalBioorganic and Medicinal Chemistry Letters
Volume18
Issue number10
DOIs
StatePublished - May 15 2008

Funding

The authors are grateful to the National Institutes of Health (GM66132) for financial support of this research. We thank Dr. Haitao Ji for carrying out the computer modeling and Dr. Graham Lawton and Dr. Wenxin Gu for helpful discussions.

Keywords

  • Aromatic amino acid
  • Computer modeling
  • GABA-AT
  • Inhibitor
  • Substrate of GABA-AT
  • γ-Aminobutyric acid
  • γ-Aminobutyric acid aminotransferase

ASJC Scopus subject areas

  • Drug Discovery
  • Molecular Medicine
  • Molecular Biology
  • Biochemistry
  • Clinical Biochemistry
  • Pharmaceutical Science
  • Organic Chemistry

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