Leucyl tRNA synthetase Antibody / LARS

Leucyl-tRNA synthetase, cytoplasmic is an enzyme that in humans is encoded by the LARS gene. This gene is mapped to 5q32. It encodes a cytosolic leucine-tRNA synthetase, a member of the class I aminoacyl-tRNA synthetase family. The encoded enzyme catalyzes the ATP-dependent ligation of L-leucine to tRNA (Leu) . It is found in the cytoplasm as part of a multisynthetase complex and interacts with the arginine tRNA synthetase through its C-terminal domain. A mutation in this gene was found in affected individuals with infantile liver failure syndrome 1. Alternatively spliced transcript variants of this gene have been observed.