LARS2 (mitochondrial leucyl tRNA synthetase) catalyzes the reaction of leucine, mitochondrial tRNA(Leu), and ATP to form Leu-tRNA(Leu), AMP, and pyrophosphate. The enzyme, a class I tRNA synthetase, is a monomer (Bullard et al. 2000).
leucine-tRNA ligase activity of LARS2(1-?) [mitochondrial matrix]