| glutamyl tRNA reductase | <enzyme> Involved in aminolevulinic acid biosynthesis; trna is cofactor for NADPH-dependent reduction of glutamate to glutamate-1-saemialdehyde; amino acid sequence given in second source Registry number: EC 1.2.1.- Synonym: glu-trna reductase, haema protein, haema gene product, k-12 haema gene product, haema1 gene product, haema2 gene product (26 Jun 1999) |
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| glutamyl tRNA dehydrogenase | <enzyme> Converts alpha carboxyl of glutamyl-trna to glutamate-1-saemialdehyde in the presence of NADPH Registry number: EC 1.2.1.- (26 Jun 1999) |
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| glutamyl-tRNA(Gln) amidotransferase | <enzyme> Amidation proceeds by a gamma-phosphorylated intermediate; glutamine or asparagine can act as amide donor Registry number: EC 2.6.- Synonym: glu-trna(gln) amidotransferases, glu-adt (26 Jun 1999) |
| gamma-glutamyl carboxylase | <enzyme> An enzyme that catalyses the formation of gamma-carboxyglutamyl residues in many proteins, several appearing in the blood clotting cascade. (05 Mar 2000) |
| gamma-glutamyl cycle | A proposed pathway for the glutathione-dependent transport of certain amino acids (most notably l-cystine, l-methionine, and l-glutamine) and dipeptides into certain cells; this cycle requires the formation of gamma-glutamyl amino acids and gamma-glutamyl dipeptides as well as a protein for the translocation of these di-and triisopeptides into the cells. (05 Mar 2000) |
| gamma-glutamyl dipeptidase | <enzyme> Removes glycine from leukotriene d4 to form leukotriene e4 Registry number: EC 3.4.13.- (26 Jun 1999) |
| gamma-glutamyl hydrolase | N-Pteroyl-l-glutamate hydrolase;an enzyme cleaving l-glutamyl residues from pteridine oligoglutamates; used in certain antitumour treatments. Synonym: carboxypeptidase G, conjugase, gamma-glutamate (glutamate gamma-) carboxypeptidase. (05 Mar 2000) |
| gamma-glutamyl transpeptidase | <enzyme> An enzyme that catalyses reversibly the transfer of a glutamyl group from a glutamyl-peptide and an amino acid to a peptide and a glutamyl-amino acid. It is often elevated above normal in hepatitis and other conditions that cause chemical liver damage. Chemical name: (5-L-Glutamyl)-peptide:amino-acid 5-glutamyltransferase Registry number: EC 2.3.2.2 Acronym: GGT (12 Sep 2002) |
| gamma-l-glutamyl-l-cysteinylglycine | <biochemistry> The tripeptide _ glutamylcysteinylglycine. It contains an unusual peptide linkage between the _ carboxyl group of the glutamate side chain and the amine group of cysteine. The concentration of glutathione in animal cells is _5mM and its sulphydryl group is kept largely in the reduced state. This allows it to act as a sulphydryl buffer, reducing any disulphide bonds formed within cytoplasmic proteins to cysteines. Hence, few, if any, cytoplasmic proteins contain disulphide bonds. Glutathione is also important as a cofactor for the enzyme glutathione peroxidase, in the uptake of amino acids and participates in leucotriene synthesis. (18 Nov 1997) |
| glutamyl | The radical of glutamic acid from which either the alpha-or the d-hydroxyl group has been removed. (05 Mar 2000) |
| glutamyl aminopeptidase | <enzyme> Pepa gene product is isolated from e. Coli Registry number: EC 3.4.11.7 Synonym: aminopeptidase a, angiotensinase a, aspartate aminopeptidase, alpha-glutamylaminopeptidase, pepa gene product (26 Jun 1999) |
| glutamyl carboxylase | <enzyme> Carboxylates glutamyl residues in a microsomal protein precursor of plasma prothrombin to form gamma-carboxyglutamic acid residues Registry number: EC 6.4.- Synonym: vitamin k-dependent carboxylase, glutamate carboxylase, vitamin k dependent carboxylase, vitamin k-dependent gamma-glutamyl carboxylase, k-dependent carboxylase, gamma-glutamyl carboxylase (26 Jun 1999) |
| glutamyl endopeptidase | <enzyme> Cleaves at the carboxyl side of glutamate and aspartate residues in proteins; see also glutamyl endopeptidase II from strep. Griseus (EC 3.4.21.82) Registry number: EC 3.4.21.19 Synonym: staphylococcus v-8 protease, v-8 protease, protease v8, staph aureus sv8 protease, staphylococcal serine protease, glu-c protease, staphylococcal glu-c protease, endoproteinase glu-c, protease glu-c, glutamate-specific endopeptidase, endopeptidase glu-c (26 Jun 1999) |
| N(epsilon)-(gamma-glutamyl)lysine hydrolase | <enzyme> Enzyme which is capable of directly hydrolyzing the cross-linked isopeptide into amino acids Registry number: EC 3.4.99.- Synonym: n(epsilon)-(gamma-glutamyl)lysine peptidase, ggl peptidase (26 Jun 1999) |
| UDP-N-acetylmuramoylalanyl-glutamyl-2,6-diaminopimelate-alanyl-alanine ligase | <enzyme> Reaction: ATP + udp-n-acetylmuramoyl-l-ala-d-glu-2,6 -diaminoheptanedioate d-ala-d-ala = ADP + orthophosphate + udp-n-acetylmuramoyl-l-ala-d-glu-6-carboxy-l-lys-d-ala-d-ala; 454 amino acids, mw 48 kD; from bacteria; final step in synthesis of udp-n-acetylmuramoyl pentapeptide; genbank x62437 Registry number: EC 6.3.2.15 Synonym: udp-n-acetylmuramoyl-alanyl-d-glutamyl-meso-2,6-diaminopimeloyl-d-alanyl-d-alanine synthetase, murf gene product, udp-n-acetylmuramoyl-l-ala-glu-meso-2,6-diaminopimeloyl-ala-ala synthetase (26 Jun 1999) |
| alanine-trna ligase | <enzyme> An enzyme that activates alanine with its specific transfer RNA. Chemical name: L-Alanine:tRNA(Ala) ligase (AMP-forming) Registry number: EC 6.1.1.7 (12 Dec 1998) |