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Glutaminase (EC 3.5.1.2, glutaminase I, L-glutaminase, glutamine aminohydrolase) is an amidohydrolase enzyme that generates glutamate from glutamine. Glutaminase has tissue-specific isoenzymes. Glutaminase has an important role in glial cells. Glutaminase catalyzes the following reaction: Glutamine + H 2 O → glutamate + NH + 4
Glutamic acid (symbol Glu or E; [4] the anionic form is known as glutamate) is an α-amino acid that is used by almost all living beings in the biosynthesis of proteins.It is a non-essential nutrient for humans, meaning that the human body can synthesize enough for its use.
Liver cell distribution of N-acetylglutamic acid is highest in the mitochondria at 56% of total N-acetylglutamic acid availability, 24% in the nucleus, and the remaining 20% in the cytosol. Aminoacylase I in liver and kidney cells degrades N -acetylglutamic acid to glutamate and acetate. [ 7 ]
GLUD1 (glutamate dehydrogenase 1) is a mitochondrial matrix enzyme, one of the family of glutamate dehydrogenases that are ubiquitous in life, with a key role in nitrogen and glutamate (Glu) metabolism and energy homeostasis. This dehydrogenase is expressed at high levels in liver, brain, pancreas and kidney, but not in muscle.
Glutamate transporters are a family of neurotransmitter transporter proteins that move glutamate – the principal excitatory neurotransmitter – across a membrane.The family of glutamate transporters is composed of two primary subclasses: the excitatory amino acid transporter (EAAT) family and vesicular glutamate transporter (VGLUT) family.
2677 56316 Ensembl ENSG00000115486 ENSMUSG00000053460 UniProt P38435 Q9QYC7 RefSeq (mRNA) NM_000821 NM_001142269 NM_001311312 NM_019802 RefSeq (protein) NP_000812 NP_001135741 NP_001298241 NP_062776 Location (UCSC) Chr 2: 85.54 – 85.56 Mb n/a PubMed search Wikidata View/Edit Human View/Edit Mouse Gamma-glutamyl carboxylase is an enzyme that in humans is encoded by the GGCX gene, located on ...
Glutamate + ATP + NH 3 → Glutamine + ADP + phosphate Glutamine synthetase catalyzed reaction. Glutamine synthetase uses ammonia produced by nitrate reduction, amino acid degradation, and photorespiration. [4] The amide group of glutamate is a nitrogen source for the synthesis of glutamine pathway metabolites. [5] Other reactions may take ...
Levels in cell membranes are increased by reduced glucose levels and decreased by increased glucose levels. GLUT1 expression is upregulated in many tumors. GLUT2: Is a bidirectional transporter, allowing glucose to flow in 2 directions. Is expressed by renal tubular cells, liver cells and pancreatic beta cells.