BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Tyrosine and tryptophan absorb more than do phenylalanine. Tyrosine is the only one of the aromatic amino acids with an ionizable side chain.

Detailed explanation-2: -Out of the 20 amino acids found in protein structures, four are aromatic. They are phenylalanine, tyrosine, tryptophan and histidine [3].

Detailed explanation-3: -Tryptophan (Trp, W) is one of three aromatic amino acids that minimally contain a six-membered benzene ring in their side chains, the other two being phenylalanine (Phe, F) and tyrosine (Tyr, Y).

Detailed explanation-4: -Role in structure: Being partially hydrophobic, Tyrosine prefers to be buried in protein hydrophobic cores. The aromatic side chain can also mean that Tyrosine is involved in stacking interactions with other aromatic side-chains.

Detailed explanation-5: -There are four different aromatic amino acids in proteins: tryptophan, phenylalanine, tyrosine, and histidine (Fig.