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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
Gamma-glutamyltransferase (also γ-glutamyltransferase, GGT, gamma-GT, gamma-glutamyl transpeptidase; [1] EC 2.3.2.2) is a transferase (a type of enzyme) that catalyzes the transfer of gamma-glutamyl functional groups from molecules such as glutathione to an acceptor that may be an amino acid, a peptide or water (forming glutamate).
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 ...
14629 Ensembl ENSG00000001084 ENSMUSG00000032350 UniProt P48506 P97494 RefSeq (mRNA) NM_001498 NM_001197115 NM_010295 RefSeq (protein) NP_001184044 NP_001489 NP_034425 Location (UCSC) Chr 6: 53.5 – 53.62 Mb Chr 9: 77.66 – 77.7 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Glutamate–cysteine ligase catalytic subunit is an enzyme that in humans is encoded by the GCLC gene ...
N-acetyl glutamate is required for the urea cycle to take place. Deficiency in N-acetylglutamate synthase or a genetic mutation in the gene coding for the enzyme will lead to urea cycle failure in which ammonia is not converted to urea, but rather accumulated in blood leading to the condition called type I hyperammonemia. This is a severe ...
Citrin (74 kDa) is a dimeric calcium-activated glutamate/aspartate carrier found in the mitochondrial membrane of mammals. Citrin is one of two isoforms of these mitochondrial calcium-activated glutamate/aspartate carriers found in humans and is predominately expressed in non-excitable tissues.
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.
Liver diseases in which necrosis of hepatocytes is the predominant event, such as toxic liver damage or hypoxic liver disease, are characterised by high serum GLDH levels. GLDH is important for distinguishing between acute viral hepatitis and acute toxic liver necrosis or acute hypoxic liver disease, particularly in the case of liver damage ...