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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2009-06-16 18:11:59 UTC
Update Date2022-11-30 19:04:10 UTC
HMDB IDHMDB0012386
Secondary Accession Numbers
  • HMDB12386
Metabolite Identification
Common NamePS(18:1(9Z)/14:1(9Z))
DescriptionPS(18:1(9Z)/14:1(9Z)) is a phosphatidylserine (PS or GPSer). It is a glycerophospholipid in which a phosphorylserine moiety occupies a glycerol substitution site. As is the case with diacylglycerols, glycerophosphoserines can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. Fatty acids containing 16, 18 and 20 carbons are the most common. PS(18:1(9Z)/14:1(9Z)), in particular, consists of one chain of oleic acid at the C-1 position and one chain of myristoleic acid at the C-2 position. The oleic acid moiety is derived from vegetable oils, especially olive and canola oil, while the myristoleic acid moiety is derived from milk fats. Phosphatidylserine or 1,2-diacyl-sn-glycero-3-phospho-L-serine is distributed widely among animals, plants and microorganisms. It is usually less than 10% of the total phospholipids, the greatest concentration being in myelin from brain tissue. However, it may comprise 10 to 20 mol% of the total phospholipid in the plasma membrane and endoplasmic reticulum of the cell. Phosphatidylserine is an acidic (anionic) phospholipid with three ionizable groups, i.e. the phosphate moiety, the amino group and the carboxyl function. As with other acidic lipids, it exists in nature in salt form, but it has a high propensity to chelate to calcium via the charged oxygen atoms of both the carboxyl and phosphate moieties, modifying the conformation of the polar head group. This interaction may be of considerable relevance to the biological function of phosphatidylserine, especially during bone formation for example. As phosphatidylserine is located entirely on the inner monolayer surface of the plasma membrane (and of other cellular membranes) and it is the most abundant anionic phospholipids. Therefore phosphatidylseriine may make the largest contribution to interfacial effects in membranes involving non-specific electrostatic interactions. This normal distribution is disturbed during platelet activation and cellular apoptosis. In human plasma, 1-stearoyl-2-oleoyl and 1-stearoyl-2-arachidonoyl species predominate, but in brain (especially grey matter), retina and many other tissues 1-stearoyl-2-docosahexaenoyl species are very abundant. Indeed, the ratio of n-3 to n-6 fatty acids in brain phosphatidylserine is very much higher than in most other lipids. 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. Phosphatidylserines typically carry a net charge of -1 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. PS biosynthesis involves an exchange reaction of serine for ethanolamine in PE.
Structure
Data?1582753048
Synonyms
ValueSource
1-Oleoyl-2-myristoleoyl-sn-glycero-3-phosphoserineHMDB
Phosphatidylserine(18:1/14:1)HMDB
Phosphatidylserine(18:1n9/14:1n5)HMDB
Phosphatidylserine(18:1W9/14:1W5)HMDB
Phosphatidylserine(32:2)HMDB
PS(18:1/14:1)HMDB
PS(18:1N9/14:1N5)HMDB
PS(18:1W9/14:1W5)HMDB
PS(32:2)HMDB
pSer(18:1/14:1)HMDB
pSer(18:1n9/14:1n5)HMDB
pSer(18:1W9/14:1W5)HMDB
pSer(32:2)HMDB
1-(9Z-Octadecenoyl)-2-(9Z-tetradecenoyl)-sn-glycero-3-phosphoserineHMDB
PS(18:1(9Z)/14:1(9Z))Lipid Annotator
Chemical FormulaC38H70NO10P
Average Molecular Weight731.9369
Monoisotopic Molecular Weight731.473733977
IUPAC Name(2S)-2-amino-3-({hydroxy[(2R)-3-[(9Z)-octadec-9-enoyloxy]-2-[(9Z)-tetradec-9-enoyloxy]propoxy]phosphoryl}oxy)propanoic acid
Traditional Name(2S)-2-amino-3-{[hydroxy(2R)-3-[(9Z)-octadec-9-enoyloxy]-2-[(9Z)-tetradec-9-enoyloxy]propoxyphosphoryl]oxy}propanoic acid
CAS Registry NumberNot Available
SMILES
[H][C@](N)(COP(O)(=O)OC[C@@]([H])(COC(=O)CCCCCCC\C=C/CCCCCCCC)OC(=O)CCCCCCC\C=C/CCCC)C(O)=O
InChI Identifier
InChI=1S/C38H70NO10P/c1-3-5-7-9-11-13-15-16-17-18-20-21-23-25-27-29-36(40)46-31-34(32-47-50(44,45)48-33-35(39)38(42)43)49-37(41)30-28-26-24-22-19-14-12-10-8-6-4-2/h10,12,16-17,34-35H,3-9,11,13-15,18-33,39H2,1-2H3,(H,42,43)(H,44,45)/b12-10-,17-16-/t34-,35+/m1/s1
InChI KeyGKXJCTQSLVKTAV-NTEBNZJHSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as phosphatidylserines. These are glycerophosphoserines in which two fatty acids are bonded to the glycerol moiety through ester linkages. As is the case with diacylglycerols, phosphatidylserines can have many different combinations of fatty acids of varying lengths and saturation attached to the C-1 and C-2 positions.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassGlycerophospholipids
Sub ClassGlycerophosphoserines
Direct ParentPhosphatidylserines
Alternative Parents
Substituents
  • Diacyl-glycerol-3-phosphoserine
  • Alpha-amino acid
  • Alpha-amino acid or derivatives
  • L-alpha-amino acid
  • Tricarboxylic acid or derivatives
  • Phosphoethanolamine
  • Fatty acid ester
  • Dialkyl phosphate
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Alkyl phosphate
  • Fatty acyl
  • Amino acid
  • Amino acid or derivatives
  • Carboxylic acid ester
  • Carboxylic acid derivative
  • Carboxylic acid
  • Primary aliphatic amine
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Amine
  • Carbonyl group
  • Organic oxide
  • Primary amine
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Organooxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.00012 g/LALOGPS
logP4.28ALOGPS
logP8.77ChemAxon
logS-6.8ALOGPS
pKa (Strongest Acidic)1.47ChemAxon
pKa (Strongest Basic)9.38ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area171.68 ŲChemAxon
Rotatable Bond Count38ChemAxon
Refractivity199.07 m³·mol⁻¹ChemAxon
Polarizability85.08 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+279.44631661259
DarkChem[M-H]-266.06631661259
DeepCCS[M+H]+274.8330932474
DeepCCS[M-H]-272.71330932474
DeepCCS[M-2H]-305.95530932474
DeepCCS[M+Na]+280.74330932474
AllCCS[M+H]+276.832859911
AllCCS[M+H-H2O]+276.632859911
AllCCS[M+NH4]+276.932859911
AllCCS[M+Na]+277.032859911
AllCCS[M-H]-265.432859911
AllCCS[M+Na-2H]-271.632859911
AllCCS[M+HCOO]-278.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
PS(18:1(9Z)/14:1(9Z))[H][C@](N)(COP(O)(=O)OC[C@@]([H])(COC(=O)CCCCCCC\C=C/CCCCCCCC)OC(=O)CCCCCCC\C=C/CCCC)C(O)=O4979.8Standard polar33892256
PS(18:1(9Z)/14:1(9Z))[H][C@](N)(COP(O)(=O)OC[C@@]([H])(COC(=O)CCCCCCC\C=C/CCCCCCCC)OC(=O)CCCCCCC\C=C/CCCC)C(O)=O4583.8Standard non polar33892256
PS(18:1(9Z)/14:1(9Z))[H][C@](N)(COP(O)(=O)OC[C@@]([H])(COC(=O)CCCCCCC\C=C/CCCCCCCC)OC(=O)CCCCCCC\C=C/CCCC)C(O)=O5142.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #1CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(OC[C@H](N)C(=O)O[Si](C)(C)C)O[Si](C)(C)C4990.8Semi standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #1CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(OC[C@H](N)C(=O)O[Si](C)(C)C)O[Si](C)(C)C4224.1Standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #1CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(OC[C@H](N)C(=O)O[Si](C)(C)C)O[Si](C)(C)C6830.9Standard polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #2CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(O)OC[C@H](N[Si](C)(C)C)C(=O)O[Si](C)(C)C5069.5Semi standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #2CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(O)OC[C@H](N[Si](C)(C)C)C(=O)O[Si](C)(C)C4513.1Standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #2CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(O)OC[C@H](N[Si](C)(C)C)C(=O)O[Si](C)(C)C6463.7Standard polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #3CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(OC[C@H](N[Si](C)(C)C)C(=O)O)O[Si](C)(C)C5106.3Semi standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #3CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(OC[C@H](N[Si](C)(C)C)C(=O)O)O[Si](C)(C)C4504.3Standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #3CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(OC[C@H](N[Si](C)(C)C)C(=O)O)O[Si](C)(C)C5987.4Standard polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #4CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(O)OC[C@@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C5245.3Semi standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #4CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(O)OC[C@@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C4586.0Standard non polar33892256
PS(18:1(9Z)/14:1(9Z)),2TMS,isomer #4CCCC/C=C\CCCCCCCC(=O)O[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)(O)OC[C@@H](C(=O)O)N([Si](C)(C)C)[Si](C)(C)C6617.9Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - PS(18:1(9Z)/14:1(9Z)) GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-10-18Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - PS(18:1(9Z)/14:1(9Z)) GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-10-18Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - PS(18:1(9Z)/14:1(9Z)) GC-MS (TMS_1_3) - 70eV, PositiveNot Available2021-10-18Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - PS(18:1(9Z)/14:1(9Z)) GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-10-18Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - PS(18:1(9Z)/14:1(9Z)) GC-MS (TBDMS_1_2) - 70eV, PositiveNot Available2021-10-18Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - PS(18:1(9Z)/14:1(9Z)) GC-MS (TBDMS_1_3) - 70eV, PositiveNot Available2021-10-18Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 10V, Positive-QTOFsplash10-0ue2-0000099900-43dc087684fecc2897cc2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 20V, Positive-QTOFsplash10-0ue8-0900099900-c92245ccfbabb934c9612021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 40V, Positive-QTOFsplash10-0ue8-0900099900-c92245ccfbabb934c9612021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 10V, Negative-QTOFsplash10-001i-0000000900-b8d79fe5f77511e7f3432021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 20V, Negative-QTOFsplash10-001i-0000001900-59e4be9fa5befd3beb122021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 40V, Negative-QTOFsplash10-02cu-0195506400-74678e08d4a11bb66d072021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 10V, Positive-QTOFsplash10-0uxr-0000016900-39d23ba4b1813b1aaf2f2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 20V, Positive-QTOFsplash10-0udi-0000002900-b4094e2697a39c9ef9842021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 40V, Positive-QTOFsplash10-0a4i-0090033100-e55eb4eb6f5f2e380aba2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 10V, Positive-QTOFsplash10-001i-0000010900-cae04fbb7cc74ec878862021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 20V, Positive-QTOFsplash10-000t-0011291400-48604b37ad5acca1216a2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - PS(18:1(9Z)/14:1(9Z)) 40V, Positive-QTOFsplash10-0002-0011291100-f68b340bbb9356b35c4e2021-09-24Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Feces
Tissue Locations
  • All Tissues
  • Brain
  • Heart
  • Kidney
  • Liver
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedNewborn (0-30 days old)Not Specified
Premature neonates
details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB029002
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound52925434
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  3. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  4. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  5. Divecha N, Irvine RF: Phospholipid signaling. Cell. 1995 Jan 27;80(2):269-78. [PubMed:7834746 ]
  6. van Engeland M, Nieland LJ, Ramaekers FC, Schutte B, Reutelingsperger CP: Annexin V-affinity assay: a review on an apoptosis detection system based on phosphatidylserine exposure. Cytometry. 1998 Jan 1;31(1):1-9. [PubMed:9450519 ]
  7. Vance JE, Tasseva G: Formation and function of phosphatidylserine and phosphatidylethanolamine in mammalian cells. Biochim Biophys Acta. 2013 Mar;1831(3):543-54. doi: 10.1016/j.bbalip.2012.08.016. Epub 2012 Aug 29. [PubMed:22960354 ]
  8. Cevc, Gregor (1993). Phospholipids Handbook. Marcel Dekker.
  9. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.
  10. Jean E. Vance (2008). Thematic Review Series: Glycerolipids. Phosphatidylserine and phosphatidylethanolamine in mammalian cells: two metabolically related aminophospholipids. The Journal of Lipid Research, 49, 1377-1387..

Only showing the first 10 proteins. There are 41 proteins in total.

Enzymes

General function:
Involved in phospholipase A2 activity
Specific function:
PA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides. Has a powerful potency for releasing arachidonic acid from cell membrane phospholipids. Prefers phosphatidylethanolamine and phosphatidylcholine liposomes to those of phosphatidylserine.
Gene Name:
PLA2G10
Uniprot ID:
O15496
Molecular weight:
18153.04
General function:
Involved in diacylglycerol kinase activity
Specific function:
Reverses the normal flow of glycerolipid biosynthesis by phosphorylating diacylglycerol back to phosphatidic acid
Gene Name:
DGKG
Uniprot ID:
P49619
Molecular weight:
89095.3
General function:
Involved in diacylglycerol kinase activity
Specific function:
Upon cell stimulation converts the second messenger diacylglycerol into phosphatidate, initiating the resynthesis of phosphatidylinositols and attenuating protein kinase C activity
Gene Name:
DGKA
Uniprot ID:
P23743
Molecular weight:
82629.5
General function:
Involved in diacylglycerol kinase activity
Specific function:
Isoform 2 may be involved in cell growth and tumorigenesis. Involved in clathrin-dependent endocytosis
Gene Name:
DGKD
Uniprot ID:
Q16760
Molecular weight:
134524.2
General function:
Involved in diacylglycerol kinase activity
Specific function:
Exhibits high phosphorylation activity for long-chain diacylglycerols
Gene Name:
DGKB
Uniprot ID:
Q9Y6T7
Molecular weight:
90594.7
General function:
Involved in protein serine/threonine kinase activity
Specific function:
PKC is activated by diacylglycerol which in turn phosphorylates a range of cellular proteins. PKC also serves as the receptor for phorbol esters, a class of tumor promoters
Gene Name:
PRKCA
Uniprot ID:
P17252
Molecular weight:
76763.5
General function:
Involved in ATP binding
Specific function:
May play a role in the transport of aminophospholipids from the outer to the inner leaflet of various membranes and the maintenance of asymmetric distribution of phospholipids, mainly in secretory vesicles
Gene Name:
ATP8A1
Uniprot ID:
Q9Y2Q0
Molecular weight:
131368.2
General function:
Involved in calcium ion binding
Specific function:
May play a role in the antiviral response of interferon (IFN) by amplifying and enhancing the IFN response through increased expression of select subset of potent antiviral genes. May contribute to cytokine-regulated cell proliferation and differentiation
Gene Name:
PLSCR1
Uniprot ID:
O15162
Molecular weight:
35048.8
General function:
Involved in phosphatidylserine biosynthetic process
Specific function:
Catalyzes a base-exchange reaction in which the polar head group of phosphatidylethanolamine (PE) or phosphatidylcholine (PC) is replaced by L-serine. In membranes, PTDSS1 catalyzes mainly the conversion of phosphatidylcholine. Also converts, in vitro and to a lesser extent, phosphatidylethanolamine.
Gene Name:
PTDSS1
Uniprot ID:
P48651
Molecular weight:
55527.18
General function:
Involved in cell adhesion
Specific function:
Receptor for different ligands such as phospholipids, cholesterol ester, lipoproteins, phosphatidylserine and apoptotic cells. Probable receptor for HDL, located in particular region of the plasma membrane, called caveolae. Facilitates the flux of free and esterified cholesterol between the cell surface and extracellular donors and acceptors, such as HDL and to a lesser extent, apoB-containing lipoproteins and modified lipoproteins. Probably involved in the phagocytosis of apoptotic cells, via its phosphatidylserine binding activity. Receptor for hepatitis C virus glycoprotein E2. Binding between SCARB1 and E2 was found to be independent of the genotype of the viral isolate. Plays an important role in the uptake of HDL cholesteryl ester
Gene Name:
SCARB1
Uniprot ID:
Q8WTV0
Molecular weight:
60877.4

Only showing the first 10 proteins. There are 41 proteins in total.