Question

In what way is the structure of the amino acid proline different from that of the other common amino acids?

Answer 1

Working on solve-:

1.Denoted by the abbreviations of P or Pro in scientific literature, proline is distinct in structure compared to other amino acids because its amino group is cyclical. In proline, the R-group is bonded to the central carbon as well as the nitrogen atom of the amino group, forming a house-like structure.

2.Proline is formally NOT an amino acid, but an imino acid. ... When proline is in a peptide bond, it does not have a hydrogen on the α amino group, so it cannot donate a hydrogen bond to stabilize an α helix or a β sheet. It is often said, inaccurately, that proline cannot exist in an α helix.

some fact about Proline

1.The distinctive cyclic structure of proline's side chain gives proline an exceptional conformational rigidity compared to other amino acids. It also affects the rate of peptide bond formation between proline and other amino acids. [ hope this will help you ,thank you very much]