For 10 points, name these building blocks of proteins.
A disease caused by the failed breakdown of one of these compounds is characterized by musty-smelling urine and is known as PKU. The sequence of these compounds is known as the "primary structure" of a certain kind of compound. In addition to phenylalanine and tryptophan, these compounds include glycine, whose R group attached to its central carbon atom is simply a hydrogen. These compounds are joined by peptide bonds. For 10 points, name these building blocks of proteins.
A disease caused by the failed breakdown of one of these compounds is characterized by musty-smelling urine and is known as PKU.
{amino} acids