LysRS is an alias for the gene, Lysyl-tRNA synthetase, in humans. Other names include: Lysine--tRNA ligase; Lysine-tRNA ligase ; lysine tRNA ligase; CMTRIB; DFNB89; KARS1; KARS2; KRS. The encoded protein is an enzyme with an amino acid length of 597 and a mass of 68.0 kDa. LysRS is a member of the Class-II aminoacyl-tRNA synthetase family. This gene shares homology with other species, including: Fly, Mouse, Rat, Arabidopsis, Zebrafish, Frog, Chicken.