Alanine–tRNA ligase
In enzymology, an alanine–tRNA ligase is an enzyme that catalyzes the chemical reaction
The 3 substrates of this enzyme are ATP, -alanine, and tRNA, whereas its 3 products are AMP, diphosphate, and -alanyl-tRNA.
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 -alanine:tRNA ligase . Other names in common use include alanyl-tRNA synthetase, alanyl-transfer ribonucleate synthetase, alanyl-transfer RNA synthetase, alanyl-transfer ribonucleic acid synthetase, alanine-transfer RNA ligase, alanine transfer RNA synthetase, alanine tRNA synthetase, alanine translase, alanyl-transfer ribonucleate synthase, AlaRS, and Ala-tRNA synthetase. This enzyme participates in alanine and aspartate metabolism and aminoacyl-tRNA biosynthesis.