Usage examples (29)

• Among the gene's many amino acids are two called valine (or "val") and methionine ( "met").
• The principal amino acids present in the protein are arginine, glutamic and aspartic acids, leucine, Iysine and valine.
• For many years, scientists have been impressed with the ability of leucine, valine, and isoleucine to augment muscle mass.
• The branch-chain amino acids valine, leucine, and isoleucine have been administered to test subjects with positive results.