glutamine synthetase


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Related to glutamine synthetase: glutaminase, glutamate synthase

glutamine synthetase

[′glüd·ə‚mēn ′sin·thə‚tās]
(biochemistry)
An enzyme which catalyzes the formation of glutamine from glutamic acid and ammonia, using adenosine triphosphate as a source of energy.
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References in periodicals archive ?
Casadoro, "Isolation and characterization of a cDNA coding for cytoplasmic glutamine synthetase of barley," Hereditas, vol.
Diagnostic utility and limitations of glutamine synthetase and serum amyloid-associated protein immunohistochemistry in the distinction of focal nodular hyperplasia and inflammatory hepatocellular adenoma.
Glutamate M+5 can be converted into glutamine M+5 or GABA M+4 through glutamine synthetase (GS) or glutamate decarboxylase (GAD) activity, respectively.
In addition to the normal mammalian glutamate dehydrogenase gene, GLUD1, primates have a second glutamate dehydrogenase gene, GLUD2, that is expressed in astrocytes and may be needed in those cells to preserve alpha-ketoglutarate levels in the presence of high glutamine synthetase activity [95].
Change of activity of glutamine synthetase enzyme was determined in the plants of spring wheat in the laboratory conditions.
In the CaCl2 treatment, the glutamine synthetase (GS) activity was significantly higher than of control at each temperature and no effect of TFP treatment during the entire experiment was observed (Fig.
Zhongze, "Changes in activities of glutamine synthetase during grain filling and their relation to rice quality," Rice Science, vol.
Establishment of glutamine synthetase of Mycobacterium smegmatis as a protein acetyltransferase utilizing polyphenolic acetates as the acetyl group donors.
Heterogeneity of glutamine synthetase polypeptides in Phaseolus vulgaris L.
Floyd, "Oxidative damage to brain proteins, loss of glutamine synthetase activity, and production of free radicals during ischemia/reperfusion-induced injury to gerbil brain," Proceedings of the National Academy of Sciences of the United States of America, vol.
A key detoxification enzyme in astrocytes, glutamine synthetase (GS) can detoxify the exitotoxins glutamate and ammonia and its expression is modulated by changes in the surroundings of astrocytes.

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