has role 5-oxoproline 5-oxo-D-proline 5-oxo-L-proline MetaCyc:5-OXOPROLINE L-Pyroglutamic acid (S)-pyroglutamic acid HMDB:HMDB0000267 (2S)-5-oxopyrrolidine-2-carboxylic acid CHEBI:44704 CHEBI:20619 KNApSAcK:C00007403 (S)-(-)-2-pyrrolidone-5-carboxylic acid Pyroglutamate L-5-Pyrrolidone-2-carboxylic acid PYROGLUTAMIC ACID CHEBI:18183 Pyroglutamic acid pidolic acid 5-Pyrrolidone-2-carboxylic acid 5-Oxo-L-proline DrugBank:DB03088 CHEBI:12153 5-oxo-L-proline An optically active form of 5-oxoproline having L-configuration. YMDB:YMDB00107 CHEBI:2113 KEGG:C01879 (-)-2-pyrrolidone-5-carboxylic acid Wikipedia:Pyroglutamic_acid PDBeChem:PCA 5-oxo-L-prolinate non-proteinogenic L-alpha-amino acid L-proline derivative algal metabolite