BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The molecular formula of proline is C5H9NO2 and molecular mass being 115.13 g mol-1. The IUPAC name of proline is Pyrolidine-2-carboxylic acid; therefore, it is the secondary amino group known as imino group which belongs to a five-member ring in a molecule.

Detailed explanation-2: -Proline contains a secondary amine group, called an imine, instead of a primary amine group. For this reason, proline is called an imino acid. Since the three-carbon R-group of proline is fused to the -nitrogen group, this compound has a rotationally constrained rigid-ring structure.

Detailed explanation-3: -Proline does not has an aromatic ring. It has heterocyclic ring. Was this answer helpful?

Detailed explanation-4: -An aromatic amino acid is an amino acid that includes an aromatic ring. Among the 20 standard amino acids, the following are classically considered aromatic: phenylalanine, tryptophan and tyrosine.

Detailed explanation-5: -Proline is a structural extreme among the 20 naturally occurring amino acids because its side chain binds to the amine end, forming both a secondary amine and a cyclic five-membered pyrrolidine ring.