- Pyrrolidine-2-carboxylic acid; the l-isomer is found in proteins, especially the collagens. SYN: pyrrolidine-2-carboxylate.- p. aminopeptidase SYN: p. iminopeptidase.- p. dipeptidase an enzyme cleaving aminoacyl-l-p. bonds in dipeptides containing a C-terminal p. residue; a deficiency of this enzyme results in hyperimidodipeptiduria. SYN: imidodipeptidase, peptidase D, prolidase.- p. iminopeptidase a hydrolase cleaving l-prolyl residues from the N-terminal position in peptides. SYN: p. aminopeptidase.- d-p. reductase an oxidoreductase reversibly reacting d-p. with NADH to produce 5-aminovalerate and NAD+.
* * *pro·line 'prō-.lēn n an amino acid C5H9NO2 that can be synthesized by animals from glutamate abbr. Pro
* * *n.an amino acid found in many proteins.
* * *pro·line (Pro) (P) (proґlēn) a nonessential amino acid, 2-pyrrolidinecarboxylic acid, a major constituent of collagen (see tropocollagen). See also table at amino acid. [USP] a preparation of proline used as a dietary supplement.
Medical dictionary. 2011.