N from amino group becomes part of side chain, forming five-part ring, limiting where is can appear on a protein

Rigid/constraints on flexibility



Aromatic Amino Acids - Answers-Tryptophan, phenylalanine, tyrosine



Aromaticity - Answers-The ability of a molecule to delocalize pi electrons around a conjucated ring, creating exceptional stability



Tryptophan - Answers-Double-ring system

Contains N atom in one ring

Largest of aromatic amino acids



Phenylalanine - Answers-Benzyl side chai...