Aromatic amino acids

Aromatic amino acids are a group of building blocks for proteins that contain special ring-shaped structures known as aromatic rings. These include phenylalanine, tyrosine, and tryptophan. The aromatic rings give these amino acids unique chemical properties, such as absorbing specific light wavelengths. They play important roles in protein structure and function, and are involved in processes like neurotransmitter production and pigmentation. Because of their stable, ring-based structures, aromatic amino acids also contribute to the three-dimensional shape and stability of proteins.