Javascript is not enabled on this browser. This site will not work properly without Javascript.
PhosphoSitePlus Homepage Cell Signaling Technology
HomeAbout PhosphoSiteUsing PhosphoSiteprivacy & cookiesCuration ProcessContact
logos LINCs Logo Mt Sinai Logo NIH Logo NCI Logo
Protein Page:
cPLA2 (human)

cPLA2 a calcium-dependent phospholipase A2 that catalyzes the release of arachidonic acid from membrane phospholipids. Selectively hydrolyzes arachidonyl phospholipids in the sn-2 position releasing arachidonic acid. Arachidonic acid is a precursor for the eicosanoids that are involved in hemodynamic regulation, inflammatory responses, and other cellular processes. Promotes cerebellar long-term depression and motor learning. Translocates to the Golgi and endoplasmic reticulum in a calcium-dependent fashion. Translocation and activation of at the ER facilitates the process of ER stress. Regulates the biogenesis of lipid droplets, a process dependent on JNK and ceramide kinase. Stimulated by agonists such as ATP, EGF, thrombin and bradykinin as well as by cytosolic Ca2+. The N-terminal C2 domain, by its association with lipid membranes, mediates the regulation of CPLA2 by presenting the active site to its substrate in response to elevations of cytosolic Ca2+. Inhibited when in trimolecular complex with ANXA2 and S100A10. Phosphorylation of S727 relieves this inhibitory interaction, thus activating PLA2G4A. Note: This description may include information from UniProtKB.
Protein type: EC; EC; Lipid Metabolism - alpha-linolenic acid; Lipid Metabolism - arachidonic acid; Lipid Metabolism - ether lipid; Lipid Metabolism - glycerophospholipid; Lipid Metabolism - linoleic acid; Phospholipase
Chromosomal Location of Human Ortholog: 1q25
Cellular Component: cytoplasm; cytosol; endoplasmic reticulum membrane; mitochondrial inner membrane
Molecular Function: calcium ion binding; calcium-dependent phospholipase A2 activity; calcium-dependent phospholipid binding; lysophospholipase activity; phospholipase A1 activity; phospholipase A2 activity
Biological Process: arachidonic acid metabolic process; phosphatidic acid biosynthetic process; phospholipid metabolic process
Reference #:  P47712 (UniProtKB)
Alt. Names/Synonyms: calcium-dependent phospholipid-binding protein; CPLA2; cPLA2-alpha; Cytosolic phospholipase A2; Lysophospholipase; MGC126350; PA24A; Phosphatidylcholine 2-acylhydrolase; Phospholipase A2; Phospholipase A2 group IVA; phospholipase A2, group IVA (cytosolic, calcium-dependent); PLA2G4; PLA2G4A
Gene Symbols: PLA2G4A
Molecular weight: 85,239 Da
Basal Isoelectric point: 5.22  Predict pI for various phosphorylation states
CST Pathways:  GPCR Signaling to MAPKs  |  Growth And Differentiation Control by MAPKs  |  Phospholipase Signaling  |  Regulation of P38 MAPKs
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
Select Structure to View Below


Protein Structure Not Found.
Download PyMol Script
Download ChimeraX Script

STRING  |  cBioPortal  |  Wikipedia  |  Reactome  |  neXtProt  |  Protein Atlas  |  BioGPS  |  Scansite  |  Pfam  |  RCSB PDB  |  ENZYME  |  Phospho3D  |  Phospho.ELM  |  NetworKIN  |  GeneCards  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene