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  • Book
    Center for Minority Group Mental Health Programs.
    Digital Access HathiTrust 1972
    Print Access Request
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    Version
    Call Number
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    Stored offsite. Please request print.
    v. 1, 1972
    Z7164.R12 U52
    1
  • Article
    Zaboura M, Halpern YS.
    J Bacteriol. 1978 Feb;133(2):447-51.
    The possible role of glutamate dehydrogenase, glutamate synthase, and glutamine synthetase in the regulation of enzyme formation in the gamma-aminobutyric acid (GABA) catabolic pathway of Escherichia coli K-12 was investigated. Evidence is presented indicating that glutamine synthetase acts as a positive regulator in the E. coli GABA control system. Mutations impairing glutamate synthase activity prevent the depression of the enzymes of the GABA pathway in ammonia-limited glucose media. However, mutations resulting in constitutive synthesis of glutamine synthetase (GlnC) restore the ability of the glutamate synthase-less mutants to grow in glucose-GABA media and result in depressed synthesis of the GABA enzymes. It is suggested that the loss of glutamate synthesis activity affects the GABA control system indirectly by lowering glutamine synthetase levels.
    Digital Access Access Options