Aminoacyl-tRNA synthetases catalyze the aminoacylation of tRNA by their cognate amino acid. Because of their central role in linking amino acids with nucleotide triplets contained in tRNAs, aminoacyl-tRNA synthetases are thought to be among the first proteins that appeared in evolution. The protein encoded by this gene belongs to class-I aminoacyl-tRNA synthetase family and is located in the class III region of the major histocompatibility complex. [provided by RefSeq, Jul 2008] (from
Norcum et al., Jackson, United States. In Febs Lett, 2005
The first three-dimensional structure of the the valyl-tRNA synthetase/elongation factor-1H complex as calculated from electron microscopic images of negatively stained samples of the human ValRS/EF-1H complex was obtained.