RefMet Compound Details

Created with Raphaƫl 2.1.0NHOHO
RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0135899
RefMet nameProline
Systematic name(2S)-pyrrolidine-2-carboxylic acid
SynonymsPubChem Synonyms
Exact mass115.063329 (neutral)
Calculate m/z:   
View other RefMet entries with this exact (neutral) mass:   +/- 0.05 amu   +/- 0.1 amu   +/- 0.2 amu   +/- 0.5 amu
FormulaC5H9NO2View other entries in RefMet with this formula
Molecular descriptors
Molfile37110 (Download molfile/View MW Metabolite Database details)
InChIInChI=1S/C5H9NO2/c7-5(8)4-2-1-3-6-4/h4,6H,1-3H2,(H,7,8)/t4-/m0/s1
InChIKeyONIBWKKTOPOVIA-BYPYZUCNSA-NView other enantiomers/diastereomers of this metabolite in RefMet
SMILESC1C[C@@H](C(=O)O)NC1
Run Tanimoto similarity search (with similarity coefficient >=0.6)
Chemical/Biochemical Classification
Super ClassOrganic acids
Main ClassAmino acids and peptides
Sub ClassAmino acids
Distribution of Proline in NMDR studies
SpeciesPlot Species distribution
Sample sourcePlot Sample source(tissue) distribution
PlatformPlatform (MS/NMR) used for detection
ChromatographyChromatography methods used for detection
StudiesNMDR Studies reporting Proline
External Links
Pubchem CID145742
ChEBI ID17203
KEGG IDC00148
HMDB IDHMDB0000162
Chemspider ID128566
MetaCyc IDPRO
EPA CompToxDTXCID7021104
Spectral data for Proline standards
BMRB ID(NMR)View NMR spectra
NP-MRD ID(NMR)View NMR spectra
MassBank(EU)View MS spectra
Structural annotation level
Annotation level1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving Proline

Rxn IDKEGG ReactionEnzyme
R00135 Peptide + H2O <=> L-Proline + PeptidePeptide + H2O <=> L-Proline + Peptide
R01248 L-Proline + NAD+ <=> (S)-1-Pyrroline-5-carboxylate + NADH + H+L-Proline:NAD+ 5-oxidoreductase
R01251 L-Proline + NADP+ <=> (S)-1-Pyrroline-5-carboxylate + NADPH + H+L-Proline:NADP+ 5-oxidoreductase
R01252 L-Proline + 2-Oxoglutarate + Oxygen <=> Hydroxyproline + Succinate + CO2L-Proline,2-oxoglutarate:oxygen oxidoreductase (4-hydroxylating)
R01253 L-Proline + Quinone <=> (S)-1-Pyrroline-5-carboxylate + HydroquinoneL-proline:quinone oxidoreductase
R03661 ATP + L-Proline + tRNA(Pro) <=> AMP + Diphosphate + L-Prolyl-tRNA(Pro)L-proline:tRNA(Pro) ligase (AMP-forming)
R10507 L-Proline + FAD <=> (S)-1-Pyrroline-5-carboxylate + FADH2L-proline:(acceptor) oxidoreductase

Table of KEGG human pathways containing Proline

Pathway IDHuman Pathway# of reactions
hsa00330 Arginine and proline metabolism 6
hsa01100 Metabolic pathways 4
hsa01230 Biosynthesis of amino acids 2
hsa00970 Aminoacyl-tRNA biosynthesis 1
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