Tags: Enzyme.
In enzymology an arginine-tRNA ligase (EC 6.1.1.19) is an enzyme that catalyzes the chemical reactionATP + L-arginine + tRNAArg AMP + diphosphate + L-arginyl-tRNAArgThe 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.