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L PROLINE
L-Proline is the only one of the twenty DNA-encoded amino acids which has a secondary amino group alpha to the carboxyl group. It is an essential component of collagen and is important for proper functioning of joints and tendons. It also helps maintain and strengthen heart muscles.
L-Proline is extremely important for the proper functioning of joints and tendons and also helps maintain and strengthen heart muscles. L-Proline is a major amino acid found in cartilage and is important for maintaining youthful skin as well as repair of muscle, connective tissue and skin damage.
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 α-nitrogen group, this compound has a rotationally constrained rigid-ring structure.