Alanyl-tRNA synthetase 2 （AARS2） is an enzyme that catalyzes the chemical reaction: ATP + L-alanine + tRNA（Ala） <---> AMP + diphosphate + L-alanyl-tRNA（Ala）. This enzyme participates in alanine and aspartate metabolism and aminoacyl-tRNA biosynthesis.

     Also known as:
     alanyl tRNA synthetase 2; AARSL; bA444E17.1; Gm89; MT ALARS; MTALARS ; AARS 2; AARS2; Alanine tRNA ligase 2 mitochondrial; Alanine tRNA ligase; Alanyl tRNA synthetase 2 mitochondrial; Alanyl tRNA synthetase like; AlaRS; KIAA1270; MGC69820; Probable alanyl tRNA synthetase mitochondrial; RP11-444E17.1.