| Lysine—tRNA ligase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 6.1.1.6 | ||||||||
| CAS no. | 9031-26-9 | ||||||||
| 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 | ||||||||
| |||||||||
In enzymology, a lysine—tRNA ligase (EC 6.1.1.6) is an enzyme that catalyzes the chemical reaction
- ATP + L-lysine + tRNALys AMP + diphosphate + L-lysyl-tRNALys
The 3 substrates of this enzyme are ATP, L-lysine, and tRNA(Lys), whereas its 3 products are AMP, diphosphate, and L-lysyl-tRNA(Lys).
This enzyme participates in 3 metabolic pathways: lysine biosynthesis, aminoacyl-trna biosynthesis, and amyotrophic lateral sclerosis (als).
Nomenclature
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-lysine:tRNALys ligase (AMP-forming). Other names in common use include lysyl-tRNA synthetase, lysyl-transfer ribonucleate synthetase, lysyl-transfer RNA synthetase, L-lysine-transfer RNA ligase, lysine-tRNA synthetase, and lysine translase.
References
Further reading
- Allen EH, Glassman E, Schweet RS (April 1960). "Incorporation of amino acids into ribonucleic acid. I. The role of activating enzymes". The Journal of Biological Chemistry. 235: 1061–7. PMID 13792726.
- Chlumecká V, Von Tigerstrom M, D'Obrenan P, Smith CJ (October 1969). "Purification and properties of lysyl transfer ribonucleic acid synthetase from bakers' yeast". The Journal of Biological Chemistry. 244 (20): 5481–8. PMID 4310598.
- Lagerkvist U, Rymo L, Lindqvist O, Andersson E (June 1972). "Some properties of crystals of lysine transfer ribonucleic acid ligase from yeast". The Journal of Biological Chemistry. 247 (12): 3897–9. PMID 4555953.
- Stern R, Mehler AH (August 1965). "Lysyl-sRNA synthetase from Escherichia coli". Biochemische Zeitschrift. 342 (4): 400–9. PMID 4284804.