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Glutamate oxidation in astrocytes: Roles of glutamate dehydrogenase and aminotransferases
Journal of Neuroscience Research, 2016The cellular distribution of transporters and enzymes related to glutamate metabolism led to the concept of the glutamate–glutamine cycle. Glutamate is released as a neurotransmitter and taken up primarily by astrocytes ensheathing the synapses. The glutamate carbon skeleton is transferred back to the presynaptic neurons as the nonexcitatory amino acid
McKenna, Mary C +5 more
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Spectrophotometric observation of a glutamate dehydrogenase-l-glutamate complex
Biochimica et Biophysica Acta (BBA) - Enzymology, 1972Abstract Ultraviolet differential spectroscopic measurements show the existence of a glutamate dehydrogenase ( l -glutamate:NAD(P) + oxidoreductase (deaminating), EC 1.4.1.3)— l -glutamate complex. The spectral features resemble perturbation difference spectra of enzyme aromatic amino acid chromophores and allow the determination of the l ...
R A, Prough, A H, Colen, H F, Fisher
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Glutamate Dehydrogenase Reaction as a Source of Glutamic Acid in Synaptosomes
Journal of Neurochemistry, 1991Abstract: The role of the glutamate dehydrogenase reaction as a pathway of glutamate synthesis was studied by incubating synaptosomes with 5 mM15NH4Cl and then utilizing gas chromatography‐mass spectrometry to measure isotopic enrichment in glutamate and aspartate.
M, Yudkoff +4 more
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Spectra of Glutamate Dehydrogenase with Diethylstilbestrol
Archives Internationales de Physiologie et de Biochimie, 1978Glutamate dehydrogenase displays hyperchromicity at 256 nm and at 276 nm upon binding of diethylstilbestrol. Increase in absorbancy is linear at both regions up to 250 micrometer DES, and becomes parabolic at higher concentration of DES. ADP in the presence of DES causes decrease in absorbancy at 256 nm; absorbancy at 276 nm increased by DES is not ...
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Regulation of glutamate dehydrogenase by histidine
Biochimica et Biophysica Acta (BBA) - Enzymology, 1971Abstract Histidine and its analogs were demonstrated to activate crystalline beef liver glutamate dehydrogenase ( l -glutamate: NAD+ oxidoreductase (deaminating), EC 1.4.1.2). Activation effects were similar to those of other amino acids such as leucine or norvaline, which have been shown previously by others to exert their activating effect with ...
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Activation of glutamate dehydrogenase by l-leucine
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1989The activation of glutamate dehydrogenase (L-glutamate: NAD(P)+ oxidoreductase (deaminating), EC 1.4.1.3) by L-leucine has been studied. Apparently homogeneous preparations from ox liver and brain were found to respond similarly. Commercially obtained preparations of the enzyme, which had suffered limited proteolysis during the purification procedure ...
Couée, Ivan, Tipton, K.F.
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Glutamate dehydrogenase in OPCA
Neurology, 1987G, Finocchiaro, F, Taroni, S, Di Donato
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