Final answer:
Isoleucine is an amino acid represented by the 3-letter code Ile. It is an essential amino acid necessary for protein synthesis in the body.
Step-by-step explanation:
Isoleucine is an amino acid, represented by the 3-letter code Ile. It is one of the essential amino acids necessary for protein synthesis in the body. Isoleucine is classified as a branched-chain amino acid (BCAA) along with leucine and valine.a