Lysine—tRNA(Pyl) ligase
lysine-tRNA(Pyl) ligase | |||||||||
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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 / EGO | ||||||||
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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 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
- Srinivasan G, James CM, Krzycki JA (2002). "Pyrrolysine encoded by UAG in Archaea: charging of a UAG-decoding specialized tRNA". Science. 296 (5572): 1459–62. doi:10.1126/science.1069588. PMID 12029131.
- Hao B, Gong W, Ferguson TK, James CM, Krzycki JA, Chan MK (2002). "A new UAG-encoded residue in the structure of a methanogen methyltransferase". Science. 296 (5572): 1462–6. doi:10.1126/science.1069556. PMID 12029132.
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