词汇 | glutamine |
释义 | BETA Examples of glutamineglutamine isn’t in the Cambridge Dictionary yet. You can help! Discovery of the ammonium substrate site on glutamine synthetase, a third cation binding site. Finally, glutamine is retransformed to glutamate within the neurons. An alternate function for glutamine synthesis is ammonia detoxification, a process by which ammonia is cleared by glutamine efflux from the brain. There were pervasive alterations in expression of mitochondrial genes, which have an important role in oxidative phosphorylation and can affect the glutamine -glutamate cycle. Developmentally related changes in the metabolism of glucose and glutamine by cattle embryos produced and cultured in vitro. The synthesized glutamine then passively diffuses back to the neuron, and after re-conversion to glutamate, is repackaged into vesicles. Effects of inhibiting glutamine synthetase and blocking glutamate uptake on b-wave generation in the isolated rat retina. Moreover, the crystal structures reveal networks of hydrogen bonds among amide groups of glutamine and asparagine side-chains. An in-register, parallel b-sheet structure aligns all glutamine and asparagine residues with the corresponding residues of neighboring peptide chains. Ammonium was the major source of mineral nitrogen, and glutamine was the most abundant free amino acid. In the absence of glutamine, the addition of pyruvate to glucose-containing medium restored viability as well as supporting a high meiotic completion rate. For example, the wellknown glutamate/glutamine cycle is dependent on the expression of glutamine synthetase in astrocytes and of glutaminase in neurons. In astrocytes, glutamine is oxidized to a-ketoglutarate which can also be transported to neurons and participate in glutamate synthesis. Light responses recorded in the presence or absence of glutamine did not differ obviously in waveform. Glutamine increased throughout endosperm development, as did asparagine, alanine, valine, serine and threonine. Developmentally related changes in the metabolism of glucose and glutamine by cattle embryos produced and co-cultured in vitro. The addition of glutamine to these cultures had a general suppressive effect on the completion of maturation. |
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