| aminoacyl-tRNA | <molecular biology> The name of the complex created when a tRNA molecule is attached to its specific amino acid and ready to participate in protein synthesis. (13 Oct 1997) |
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| amino acyl-tRNA ligases | <enzyme> Any of the group of ligases that catalyses the ATP-driven formation of a bond between an amino acid and a trna, activating the amino acids as a step in protein synthesis. Individual enzymes are highly specific for one amino acid and for any trna corresponding to that amino acid. Registry number: EC 6.1.1. (12 Dec 1998) |
| aminoacyl-tRNA synthetases | <enzyme> Enzymes catalyzing the formation of a specific aminoacyl-tRNA from an amino acid and adenosine 5'-triphosphate with the concomitant formation of adenosine 5'-monophosphate and pyrophosphate. Synonym: amino acid activating enzyme, aminoacyl-tRNA ligases. (05 Mar 2000) |
| arginine-trna ligase | <enzyme> An enzyme that activates arginine with its specific transfer RNA. Chemical name: L-Arginine:tRNA(Arg)ligase (AMP-forming) Registry number: EC 6.1.1.19 (12 Dec 1998) |
| aspartate-trna ligase | <enzyme> An enzyme that activates aspartic acid with its specific transfer RNA. Chemical name: L-Aspartate:tRNA-(Asp) ligase (AMP-forming) Registry number: EC 6.1.1.12 (12 Dec 1998) |
| valine-trna ligase | <enzyme> An enzyme that activates valine with its specific transfer RNA. Chemical name: L-Valine:tRNA(Val) ligase (AMP-forming) Registry number: EC 6.1.1.9 (12 Dec 1998) |
| glutamate-trna ligase | <enzyme> An enzyme that activates glutamic acid with its specific transfer RNA. Chemical name: L-Glutamate:tRNA(Glu) ligase (AMP-forming) Registry number: EC 6.1.1.17 (12 Dec 1998) |
| 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) |
| 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) |
| 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) |
| glycine-trna ligase | <enzyme> An enzyme that activates glycine with its specific transfer RNA. Chemical name: Glycine:tRNA(Gly) ligase (AMP-forming) Registry number: EC 6.1.1.14 (12 Dec 1998) |
| methionine-trna ligase | <enzyme> An enzyme that activates methionine with its specific transfer RNA. Chemical name: L-Methionine:tRNA(Met) ligase (AMP-forming) Registry number: EC 6.1.1.10 (12 Dec 1998) |
| phenylalanine-trna ligase | <enzyme> An enzyme that activates phenylalanine with its specific transfer RNA. Chemical name: Phenylalanine:tRNA(Phe) ligase (AMP-forming) Registry number: EC 6.1.1.20 (12 Dec 1998) |
| S-adenosylmethionine - tRNA ribosyltransferase-isomerase | <enzyme> Converts the queuosine precursor, 7-(aminomethyl)-7-deazaguanine (preq1) to epoxyqueuosine (oq) by attachment of an epoxycyclopentanediol moiety Registry number: EC 2.4.2.- Synonym: quea enzyme, quea gene product (26 Jun 1999) |
| histidine-trna ligase | <enzyme> An enzyme that activates histidine with its specific transfer RNA. Chemical name: L-Histidine:tRNA(His) ligase (AMP-forming) Registry number: EC 6.1.1.21 (12 Dec 1998) |