SEARCH Articles Figures Tables A-amino acid proline Amino acid metabolism proline Amino acids proline Amino acids racemization, -proline Amino acids, proline-bridged aromatic Amino-acid residues proline Applications of Non-Proline Primary Amino Acid Catalysts Ascorbic acid, deficiency proline Aspartic acid-proline sequence Imino acid, proline Proline methyl ester hydrochloride, acidity Proline pyrrole-2-carboxylic acid Proline ring-structured imino acids Prolines Brpnsted acid catalysts Prolines acid esters Prolines amino acids-derived chiral Secondary amino acids, proline Secondary amino acids, proline hydroxyproline