LRS, or Leucyl-tRNA synthetase, is a human gene encoded by LARS. It may also be known as: Leucine--tRNA ligase, cytoplasmic; Leucine-tRNA ligase, cytoplasmic ; leucine tRNA ligase 1, cytoplasmic; HSPC192; ILFS1; LARS1; LEUS; LFIS; PIG44; RNTLS; hr025Cl. The encoded protein is an enzyme with an amino acid length of 1176 and a mass of 134.5 kDa. LRS is a member of the Class-I aminoacyl-tRNA synthetase family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.