Article
Side-chain interactions in the regulatory domain of human glutamate dehydrogenase determine basal activity and regulation.
Journal of neurochemistry - 1 Apr 2015
Mastorodemos Vasileios, Kanavouras Konstantinos, Sundaram Shobana, Providaki Maria, Petraki Zoe, Kokkinidis Michael, Zaganas Ioannis, Logothetis Diomedes E, Plaitakis Andreas
Abstract excerpt
Glutamate Dehydrogenase (GDH) is central to the metabolism of glutamate, a major excitatory transmitter in mammalian central nervous system (CNS). hGDH1 is activated by ADP and L-leucine and powerfully inhibited by GTP. Besides this housekeeping hGDH1, duplication led to an hGDH2 isoform that is expressed in the human brain dissociating its function from GTP control. The novel enzyme has reduced basal activity...
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