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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 tissue-specific isoenzymes.
In enzymology, a protein-glutamine glutaminase (EC 3.5.1.44) is an enzyme that catalyzes the chemical reaction. protein L-glutamine + H 2 O protein L-glutamate + NH 3. Thus, the two substrates of this enzyme are protein L-glutamine and H 2 O, whereas its two products are protein L-glutamate and NH 3.
GLS2 is a part of the glutaminase family. The protein encoded by this gene is a mitochondrial phosphate-activated glutaminase that catalyzes the hydrolysis of glutamine to stoichiometric amounts of glutamate and ammonia. Originally thought to be liver-specific, this protein has been found in other tissues as well.
Tissue transglutaminase (abbreviated as tTG or TG2) is a 78-kDa, calcium-dependent enzyme (EC 2.3.2.13) of the protein-glutamine γ-glutamyltransferases family (or simply transglutaminase family).
Transglutaminase can be used as a binding agent to improve the texture of protein-rich foods such as surimi or ham. [ 14 ] Thrombin – fibrinogen "meat glue" from bovine and porcine sources was banned throughout the European Union as a food additive in 2010. [ 15 ]
Protein synthesis, as any other of the 20 proteinogenic amino acids; Lipid synthesis, especially by cancer cells. [8] Regulation of acid-base balance in the kidney by producing ammonium [9] Cellular energy, as a source, next to glucose [10] Nitrogen donation for many anabolic processes, including the synthesis of purines [7]
Glutamine synthetase (GS) (EC 6.3.1.2) [3] is an enzyme that plays an essential role in the metabolism of nitrogen by catalyzing the condensation of glutamate and ammonia to form glutamine:
The glutamine is taken into the presynaptic terminals and metabolized into glutamate by the phosphate-activated glutaminase (a mitochondrial enzyme). The glutamate that is synthesized in the presynaptic terminal is packaged into synaptic vesicles by the glutamate transporter, VGLUT.