BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Tyrosine is the only one of the aromatic amino acids with an ionizable side chain.

Detailed explanation-2: -Role in structure: Being hydrophobic, Phenylalanine prefers to be buried in protein hydrophobic cores. The aromatic side chain can also mean that Phenyalanine is involved in stacking interactions with other aromatic side-chains.

Detailed explanation-3: -There are four different aromatic amino acids in proteins: tryptophan, phenylalanine, tyrosine, and histidine (Fig. 1). The NMR properties of the aromatic side chains differ significantly from aliphatic side chains.

Detailed explanation-4: -Tyrosine, phenylalanine and tryptophan are the three aromatic amino acids (AAA) involved in protein synthesis.

Detailed explanation-5: -. It can be viewed as a benzyl group substituted for the methyl group of alanine, or a phenyl group in place of a terminal hydrogen of alanine. This essential amino acid is classified as neutral, and nonpolar because of the inert and hydrophobic nature of the benzyl side chain.