is enantiomer of L-alpha-amino acid D-proline L-proline (-)-(S)-proline (-)-2-pyrrolidinecarboxylic acid (-)-proline (2S)-pyrrolidine-2-carboxylic acid (S)-2-carboxypyrrolidine (S)-2-pyrrolidinecarboxylic acid (S)-pyrrolidine-2-carboxylic acid 115.063 115.13050 2-Pyrrolidinecarboxylic acid Beilstein:80810 C5H9NO2 CAS:147-85-3 CHEBI:13154 CHEBI:17203 CHEBI:184637 CHEBI:21373 CHEBI:42067 CHEBI:45040 CHEBI:45100 CHEBI:45159 CHEBI:6286 DrugBank:DB00172 Drug_Central:4125 Gmelin:50152 HMDB:HMDB0000162 InChI=1S/C5H9NO2/c7-5(8)4-2-1-3-6-4/h4,6H,1-3H2,(H,7,8)/t4-/m0/s1 KEGG:C00148 KEGG:D00035 KNApSAcK:C00001388 L-(-)-proline L-Prolin L-Proline L-alpha-pyrrolidinecarboxylic acid L-proline L-pyrrolidine-2-carboxylic acid MetaCyc:PRO OC(=O)[C@@H]1CCCN1 ONIBWKKTOPOVIA-BYPYZUCNSA-N P PDBeChem:PRO PMID:11076505 PMID:12770004 PMID:14975886 PMID:15576824 PMID:15838615 PMID:15894682 PMID:15973048 PMID:16033917 PMID:16190672 PMID:16501220 PMID:16656443 PMID:16657874 PMID:16668324 PMID:17127472 PMID:17608428 PMID:18551589 PMID:18802692 PMID:18973300 PMID:19215998 PMID:19580280 PMID:19656302 PMID:19688381 PMID:19811425 PMID:22139509 PMID:22201772 PMID:22451406 PMID:22475019 PMID:22482728 PMID:22491679 PMID:22770225 PROLINE Pyrrolidine in which the pro-S hydrogen at position 2 is substituted by a carboxylic acid group. 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. Reaxys:80810 Wikipedia:L-proline chebi_ontology prolina proline prolinum glutamine family amino acid proline proteinogenic amino acid