| trna methyltransferases | <enzyme> Enzymes that catalyze the s-adenosyl-l-methionine-dependent methylation of ribonucleotide bases within a transfer RNA molecule. Registry number: EC 2.1.1.- (12 Dec 1998) |
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| methyltransferases | <enzyme> A subclass of enzymes of the transferase class that catalyze the transfer of a methyl group from one compound to another. Registry number: EC 2.1.1. (12 Dec 1998) |
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| polynucleotide methyltransferases | Enzymes that catalyze the methylation of purine and/or pyrimidine bases of polynucleotides, or of the sugars of polynucleotides. Synonym: polynucleotide methylases. (05 Mar 2000) |
| protein methyltransferases | <enzyme> Enzymes that catalyze the methylation of amino acids after their incorporation into a polypeptide chain. S-adenosyl-l-methionine acts as the methylating agent. Registry number: EC 2.1.1 (12 Dec 1998) |
| 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) |
| aminoacid-tRNA ligases | Recommended name for aminoacyl-tRNA synthetases, e.g., tyrosine-tRNA ligase for tyrosyl-tRNA synthetase. (05 Mar 2000) |
| 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) |
| 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) |
| p18 component, aminoacyl tRNA synthetase | <enzyme> Shares a protein motif with the beta and gamma subunits of eukaryotic elongation factor 1; amino acid sequence given in first source Registry number: EC 6.1.1.- Synonym: p18 aminoacyl-trna synthase (26 Jun 1999) |
| 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) |
| glutaminyl-tRNA synthetase | <enzyme> Pi read RNA, soluble (70-75), but had to be deleted since no longer an active mh Registry number: EC 6.1.1.18 Synonym: glnrs (26 Jun 1999) |
| 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) |