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Synthesis of PC
Stable Identifier
R-HSA-1483191
Type
Pathway
Species
Homo sapiens
ReviewStatus
5/5
Locations in the PathwayBrowser
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Metabolism (Homo sapiens)
Metabolism of lipids (Homo sapiens)
Phospholipid metabolism (Homo sapiens)
Glycerophospholipid biosynthesis (Homo sapiens)
Synthesis of PC (Homo sapiens)
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De novo
(Kennedy pathway) synthesis of phosphatidylcholine (PC) involves phosphorylation of choline (Cho) to phosphocholine (PCho) followed by condensing with cytidine triphosphate (CTP) to form CDP-choline (CDP-Cho). Diacylglycerol (DAG) and CDP-ETA together then form PC. Alternatively, PC is formed when phosphatidylethanolamine (PE) is methylated by phosphatidylethanolamine N-methyltransferase (PEMT) (Henneberry et al. 2002; Wright & McMaster 2002).
Literature References
PubMed ID
Title
Journal
Year
12216837
PC and PE synthesis: mixed micellar analysis of the cholinephosphotransferase and ethanolaminephosphotransferase activities of human choline/ethanolamine phosphotransferase 1 (CEPT1)
Wright, MM
,
McMaster, CR
Lipids
2002
12221122
The major sites of cellular phospholipid synthesis and molecular determinants of Fatty Acid and lipid head group specificity
Henneberry, AL
,
Wright, MM
,
McMaster, CR
Mol Biol Cell
2002
Participants
Events
PE is methylated to PC by PEMT
(Homo sapiens)
PCTP binds PC
(Homo sapiens)
STARD7 binds PC
(Homo sapiens)
STARD7 transports PC from ER membrane to mitochondrial outer membrane
(Homo sapiens)
STARD10 binds LPCAT1 and PC
(Homo sapiens)
STARD10 transports PC from ER membrane to lamellar body membrane
(Homo sapiens)
Casein kinase II phosphorylates STARD10
(Homo sapiens)
AcCho is hydrolyzed to Cho and acetate by ACHE
(Homo sapiens)
Cho transports from the extracellular space to the cytosol
(Homo sapiens)
Cho is phosphorylated to PCho by CHK dimer
(Homo sapiens)
PCho is dephosphorylated to Cho by PHOSPHO1
(Homo sapiens)
Cho is acetylated to AcCho by CHAT
(Homo sapiens)
PCho and CTP are condensed to CDP-Cho by PCYT1 dimer
(Homo sapiens)
PA is dephosphorylated to DAG by LPIN
(Homo sapiens)
CDP-Cho and DAG are converted to PC by CEPT1 at the ER membrane
(Homo sapiens)
CDP-Cho and DAG are converted to PC by CHPT1 at the Golgi membrane
(Homo sapiens)
ABHD3 hydrolyses LPC(14:0) to 1AGPC
(Homo sapiens)
MFSD2A transports LPC from extracellular region to plasma membrane
(Homo sapiens)
Participates
as an event of
Glycerophospholipid biosynthesis (Homo sapiens)
Event Information
Go Biological Process
phosphatidylcholine biosynthetic process (0006656)
Orthologous Events
Synthesis of PC (Bos taurus)
Synthesis of PC (Caenorhabditis elegans)
Synthesis of PC (Canis familiaris)
Synthesis of PC (Danio rerio)
Synthesis of PC (Dictyostelium discoideum)
Synthesis of PC (Drosophila melanogaster)
Synthesis of PC (Gallus gallus)
Synthesis of PC (Mus musculus)
Synthesis of PC (Plasmodium falciparum)
Synthesis of PC (Rattus norvegicus)
Synthesis of PC (Saccharomyces cerevisiae)
Synthesis of PC (Schizosaccharomyces pombe)
Synthesis of PC (Sus scrofa)
Synthesis of PC (Xenopus tropicalis)
Authored
Williams, MG (2011-09-14)
Reviewed
Wakelam, M (2012-05-14)
Created
Williams, MG (2011-08-12)
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