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Human Metabolome Database Version 3.5

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Showing metabocard for O-Phosphoethanolamine (HMDB00224)

Record Information
Version 3.5
Creation Date 2005-11-16 08:48:42 -0700
Update Date 2013-02-08 17:08:07 -0700
HMDB ID HMDB00224
Secondary Accession Numbers
  • HMDB12279
Metabolite Identification
Common Name O-Phosphoethanolamine
Description Phosphoethanolamine (PE) is a phosphomonoester metabolite of the phospholipid metabolism. PE is a precursor of phospholipid synthesis and a product of phospholipid breakdown. Phosphomonoesters are present at much higher levels in brain than in other organs. In developing brain, phosphomonoesters are normally elevated during the period of neuritic proliferation. This also coincides with the occurrence of normal programmed cell death and synaptic pruning in developing brain. These findings are consistent with the role of phosphomonoesters in membrane biosynthesis. PE shows a strong structural similarity to the inhibitory neurotransmitter, GABA, and the GABAB receptor partial agonist, 3-amino-propylphosphonic acid. PE is a phosphomonoester which is decreased in post-mortem Alzheimer's disease (AD) brain. (PMID: 7791524 Link_out, 8588821 Link_out, 11566853 Link_out).
Structure Thumb
Download: MOL | SDF | SMILES | InChI
Display: 2D Structure | 3D Structure
Synonyms
  1. 2-Amino-Ethanol dihydrogen phosphate
  2. 2-Amino-Ethanol dihydrogen phosphate (ester)
  3. 2-Amino-Ethanol phosphate
  4. 2-Aminoethanol O-phosphate
  5. 2-Aminoethyl dihydrogen phosphate
  6. 2-Aminoethyl dihydrogen phosphate (ACD/Name 4.0)
  7. 2-Aminoethyl phosphate
  8. Colamine acid phosphate
  9. Colamine phosphate
  10. Colamine phosphoric acid
  11. Colaminephosphoric acid
  12. Colaminphosphoric acid
  13. EAP
  14. Ethanolamine acid phosphate
  15. Ethanolamine O-phosphate
  16. Ethanolamine phosphate
  17. Mono(2-aminoethyl) phosphate
  18. Monoaminoethyl phosphate
  19. O-Phosphocolamine
  20. O-Phosphoethanolamine
  21. O-Phosphorylethanolamine
  22. OPE
  23. PETN
  24. Phosphoethanolamine
  25. Phosphonoethanolamine
  26. Phosphoric acid 2-aminoethyl phenyl ester
  27. Phosphoryethanolamine
  28. Phosphorylethanolamine
Chemical Formula C2H8NO4P
Average Molecular Weight 141.063
Monoisotopic Molecular Weight 141.019094261
IUPAC Name (2-aminoethoxy)phosphonic acid
Traditional IUPAC Name 2-aminoethoxyphosphonic acid
CAS Registry Number 1071-23-4
SMILES NCCOP(O)(O)=O
InChI Identifier InChI=1S/C2H8NO4P/c3-1-2-7-8(4,5)6/h1-3H2,(H2,4,5,6)
InChI Key SUHOOTKUPISOBE-UHFFFAOYSA-N
Chemical Taxonomy
Kingdom Organic Compounds
Super Class Organophosphorus Compounds
Class Organic Phosphoric Acids and Derivatives
Sub Class Organophosphate Esters
Other Descriptors
  • Aliphatic Acyclic Compounds
  • phosphoethanolamine(ChEBI)
Substituents
  • Organic Hypophosphite
  • Organic Phosphite
  • Primary Aliphatic Amine (Alkylamine)
Direct Parent Phosphoethanolamines
Ontology
Status Detected and Quantified
Origin
  • Endogenous
Biofunction
  • Component of Glycerophospholipid metabolism
Application Not Available
Cellular locations
  • Cytoplasm
  • Endoplasmic reticulum
Physical Properties
State Solid
Experimental Properties
Property Value Reference
Melting Point 241 - 243 °C Not Available
Boiling Point Not Available Not Available
Water Solubility 72 mg/mL Not Available
LogP Not Available Not Available
Predicted Properties
Property Value Source
Water Solubility 25.8 g/L ALOGPS
LogP -1.54 ALOGPS
LogP -2.5 ChemAxon
LogS -0.74 ALOGPS
pKa (strongest acidic) 1.54 ChemAxon
pKa (strongest basic) 10.02 ChemAxon
Hydrogen Acceptor Count 4 ChemAxon
Hydrogen Donor Count 3 ChemAxon
Polar Surface Area 92.78 A2 ChemAxon
Rotatable Bond Count 3 ChemAxon
Refractivity 27.08 ChemAxon
Polarizability 11.12 ChemAxon
Formal Charge 0 ChemAxon
Physiological Charge -1 ChemAxon
Spectra
Gas-MS Spectrum
1H NMR Spectrum
MS/MS Spectrum Quattro_QQQ 10
MS/MS Spectrum Quattro_QQQ 25
MS/MS Spectrum Quattro_QQQ 40
MS/MS Spectrum LC-ESI-QQ (API3000, Applied Biosystems) 10
MS/MS Spectrum LC-ESI-QQ (API3000, Applied Biosystems) 20
MS/MS Spectrum LC-ESI-QQ (API3000, Applied Biosystems) 30
MS/MS Spectrum LC-ESI-QQ (API3000, Applied Biosystems) 40
MS/MS Spectrum LC-ESI-QQ (API3000, Applied Biosystems) 50
MS/MS Spectrum GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies )
MS/MS Spectrum LC-ESI-QTOF (UPLC Q-Tof Premier, Waters)
MS/MS Spectrum GC-MS
[1H,13C] 2D NMR Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Endoplasmic reticulum
Biofluid Locations
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Urine
Tissue Location Not Available
Pathways
Name SMPDB Link KEGG Link
Sphingolipid Metabolism SMP00034 map00500 Link_out
Normal Concentrations
Biofluid Status Value Age Sex Condition Comments
Blood Detected and Quantified
Article_icon
19 +/- 9.9 uM Newborn (0-30 days old) Both Normal Not Available
Blood Detected and Quantified
Article_icon
4.0 +/- 2.0 uM Adult (>18 years old) Female Normal Not Available
Cerebrospinal Fluid (CSF) Detected and Quantified
Article_icon
6.0 +/- 1.1 uM Adult (>18 years old) Both Normal Not Available
Cerebrospinal Fluid (CSF) Detected and Quantified
Article_icon
6.30 (4.70-9.60) uM Adult (>18 years old) Both Normal Not Available
Urine Detected and Quantified
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4.276 (1.644-6.908) umol/mmol creatinine Adult (>18 years old) Both Normal Not Available
Urine Detected and Quantified
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8.2 +/- 2.0 umol/mmol creatinine Adult (>18 years old) Both Normal Not Available
Abnormal Concentrations
Biofluid Status Value Age Sex Condition Comments
Cerebrospinal Fluid (CSF) Detected and Quantified
Article_icon
11.3 (6.50-16.4) uM Adult (>18 years old) Both Brain injury Severe traumatic brain injury (TBI)
Associated Disorders and Diseases
Disease References
Traumatic brain injury
  • Seki Y, Kimura M, Mizutani N, Fujita M, Aimi Y, Suzuki Y: Cerebrospinal fluid taurine after traumatic brain injury. Neurochem Res. 2005 Jan;30(1):123-8. Pubmed: 15756940 Link_out
    Associated OMIM IDs None
    DrugBank ID Not Available
    Phenol Explorer Compound ID Not Available
    Phenol Explorer Metabolite ID Not Available
    FoodDB ID FDB021911
    KNApSAcK ID Not Available
    Chemspider ID 990 Link_out
    KEGG Compound ID C00346 Link_out
    BioCyc ID PHOSPHORYL-ETHANOLAMINE Link_out
    BiGG ID 1485304 Link_out
    Wikipedia Link Phosphoethanolamine Link_out
    NuGOwiki Link HMDB00224 Link_out
    Metagene Link HMDB00224 Link_out
    METLIN ID 5233 Link_out
    PubChem Compound 1015 Link_out
    PDB ID OPE Link_out
    ChEBI ID 17553 Link_out
    References
    Synthesis Reference Muller K; Schulz J; Oemus R Phosphoethanolamine--a substrate of alkaline phosphatase isolated from rat calvaria. Biomedica biochimica acta (1989), 48(8), 495-504.
    Material Safety Data Sheet (MSDS) Download (PDF)
    General References
    1. Silwood CJ, Lynch E, Claxson AW, Grootveld MC: 1H and (13)C NMR spectroscopic analysis of human saliva. J Dent Res. 2002 Jun;81(6):422-7. Pubmed: 12097436 Link_out
    2. Seki Y, Kimura M, Mizutani N, Fujita M, Aimi Y, Suzuki Y: Cerebrospinal fluid taurine after traumatic brain injury. Neurochem Res. 2005 Jan;30(1):123-8. Pubmed: 15756940 Link_out

    Enzymes
    Name: Choline/ethanolamine kinase
    Reactions:
    • ATP + ethanolamine = ADP + O-phosphoethanolamine [RN:R01468]
    Gene Name: CHKB
    Uniprot ID: Q9Y259 Link_out
    Protein Sequence: FASTA
    Gene Sequence: FASTA
    Name: Ethanolamine kinase 1
    Reactions:
    • ATP + ethanolamine = ADP + O-phosphoethanolamine [RN:R01468]
    Gene Name: ETNK1
    Uniprot ID: Q9HBU6 Link_out
    Protein Sequence: FASTA
    Gene Sequence: FASTA
    Name: Phosphoethanolamine/phosphocholine phosphatase
    Reactions:
    • (1) O-phosphoethanolamine + H2O = ethanolamine + phosphate [RN:R06870]
    • (2) phosphocholine + H2O = choline + phosphate [RN:R06871]
    Gene Name: PHOSPHO1
    Uniprot ID: Q8TCT1 Link_out
    Protein Sequence: FASTA
    Gene Sequence: FASTA
    Name: Ethanolamine kinase 2
    Reactions:
    • ATP + ethanolamine = ADP + O-phosphoethanolamine [RN:R01468]
    Gene Name: ETNK2
    Uniprot ID: Q9NVF9 Link_out
    Protein Sequence: FASTA
    Gene Sequence: FASTA