| Arginine—tRNA ligase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 6.1.1.19 | ||||||||
| CAS no. | 37205-35-9 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
| Arginyl tRNA synthetase N terminal domain | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 yeast arginyl-trna synthetase | |||||||||
| Identifiers | |||||||||
| Symbol | Arg_tRNA_synt_N | ||||||||
| Pfam | PF03485 | ||||||||
| InterPro | IPR005148 | ||||||||
| SCOP2 | 1f7u / SCOPe / SUPFAM | ||||||||
| |||||||||
In enzymology, an arginine—tRNA ligase (EC 6.1.1.19) is an enzyme that catalyzes the chemical reaction
Contents
- ATP + L-arginine + tRNAArg AMP + diphosphate + L-arginyl-tRNAArg
The 3 substrates of this enzyme are ATP, L-arginine, and tRNA(Arg), whereas its 3 products are AMP, diphosphate, and L-arginyl-tRNA(Arg).
This enzyme belongs to the family of ligases, to be specific those forming carbon-oxygen bonds in aminoacyl-tRNA and related compounds. The systematic name of this enzyme class is L-arginine:tRNAArg ligase (AMP-forming). Other names in common use include arginyl-tRNA synthetase, arginyl-transfer ribonucleate synthetase, arginyl-transfer RNA synthetase, arginyl transfer ribonucleic acid synthetase, arginine-tRNA synthetase, and arginine translase. This enzyme participates in arginine and proline metabolism and aminoacyl-trna biosynthesis.
It contains a conserved domain at the N terminus called arginyl tRNA synthetase N terminal domain or additional domain 1 (Add-1). This domain is about 140 residues long and it has been suggested that it is involved in tRNA recognition. [1]
