CMT2N, or Alanyl-tRNA synthetase, is a human gene encoded by AARS. It may also be known as: Alanine--tRNA ligase, cytoplasmic; Renal carcinoma antigen NY-REN-42; Alanine-tRNA ligase, cytoplasmic ; alanine tRNA ligase 1, cytoplasmic. The encoded protein is an enzyme with an amino acid length of 968 and a mass of 106.8 kDa. CMT2N is a member of the Class-II aminoacyl-tRNA synthetase family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.