Record Information
Version 1.0
Update Date 1/22/2018 12:54:54 PM
Metabolite IDPAMDB006245
Name: PE(22:5(7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z))
Description:PE(22:5(7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z)) is a phosphatidylethanolamine. It is a glycerophospholipid in which a phosphorylethanolamine moiety occupies a glycerol substitution site. As is the case with diacylglycerols, glycerophosphoethanolamines can have many different combinations of fatty acids of varying lengths and saturation attached to the C-1 and C-2 atoms. PE(22:5(7Z,10Z,13Z,16Z,19Z)/18:2(9Z,12Z)), in particular, consists of one 7Z,10Z,13Z,16Z,19Z-docosapentaenoyl chain to the C-1 atom, and one 9Z,12Z-octadecadienoyl to the C-2 atom. While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. PEs are neutral zwitterions at physiological pH. They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18:2, 20:4 and 22:6) on carbon 2. PE synthesis can occur via two pathways. The first requires that ethanolamine be activated by phosphorylation and then coupled to CDP. The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. The second involves the decarboxylation of PS.
Synonyms:Not Available
Chemical Formula: C45H76NO8P
Average Molecular Weight: 790.0606
Monoisotopic Molecular Weight: 789.530854925
CAS number: Not Available
IUPAC Name:Not Available
Traditional IUPAC Name: Not Available
Chemical Taxonomy
Taxonomy DescriptionNot Available
Kingdom Not Available
Super ClassNot Available
Class Not Available
Sub ClassNot Available
Direct Parent Not Available
Alternative Parents Not Available
Substituents Not Available
Molecular Framework Not Available
External Descriptors Not Available
Physical Properties
State: Not Available
Charge:Not Available
Melting point: Not Available
Experimental Properties:
Predicted Properties
Biological Properties
Cellular Locations:Cytoplasm
SMPDB Pathways:
phospholipid biosynthesis I (CL(18:2(9Z,12Z)/18:2(9Z,12Z)/18:2(9Z,12Z)/18:2(9Z,12Z))?)PW001025 Pw001025Pw001025 greyscalePw001025 simple
Biological Properties
Cellular Locations: Cytoplasm
Pathways: Not Available
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-9022010200-01bbb3e6530111c74af7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-9132000100-ec5dba3239985da92b0bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9055003000-8bf118c1ca556cb54c6bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-01t9-1149120500-fcd6e58f18be579020b6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-6439100100-dcf7fe0ff8038a6ed6fbView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9211000000-19bc7792167cb71ba824View in MoNA
  • Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. Pubmed: 22080510
  • Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. Pubmed: 21097882
  • Yurtsever D. (2007). Fatty acid methyl ester profiling of Enterococcus and Esherichia coli for microbial source tracking. Thesis. Villanova University: U.S.A
Synthesis Reference: Not Available
Material Safety Data Sheet (MSDS) Not Available
External Links: