Other amino acids avoid water and are called hydrophobic, such as isoleucine, phenylalanine, and valine. The amino acid cysteine has a chemically reactive side chain that can form bonds with ...

They play a crucial role in the structure, function, and regulation of the body's tissues ... synthesized by the body and must be obtained through dietary sources. The nine essential amino acids are ...

The chemical structure of uracil, showing its single-ring pyrimidine structure ... For example, the codon UUU codes for the amino acid phenylalanine. The presence of uracil in RNA contributes to its ...