Biology:Lysine—tRNA(Pyl) ligase
From HandWiki
| lysine-tRNA(Pyl) ligase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 6.1.1.25 | ||||||||
| CAS number | 782472-12-2 | ||||||||
| 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 | ||||||||
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In enzymology, a lysine-tRNAPyl ligase (EC 6.1.1.25) is an enzyme that catalyzes the chemical reaction
- ATP + L-lysine + tRNAPyl [math]\displaystyle{ \rightleftharpoons }[/math] AMP + diphosphate + L-lysyl-tRNAPyl
The 3 substrates of this enzyme are ATP, L-lysine, and tRNA(Pyl), whereas its 3 products are AMP, diphosphate, and L-lysyl-tRNA(Pyl).
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:tRNAPyl ligase (AMP-forming).
References
- "Pyrrolysine encoded by UAG in Archaea: charging of a UAG-decoding specialized tRNA". Science 296 (5572): 1459–62. 2002. doi:10.1126/science.1069588. PMID 12029131.
- "A new UAG-encoded residue in the structure of a methanogen methyltransferase". Science 296 (5572): 1462–6. 2002. doi:10.1126/science.1069556. PMID 12029132.
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