Purification notesab53105 was affinity purified from rabbit antiserum by affinity chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
1/100. PubMed: 23773289
1/300 - 1/1000. Detects a band of approximately 110 kDa (predicted molecular weight: 85 kDa).
Use at an assay dependent concentration.
Use a concentration of 5 µg/ml.
FunctionSelectively hydrolyzes arachidonyl phospholipids in the sn-2 position releasing arachidonic acid. Together with its lysophospholipid activity, it is implicated in the initiation of the inflammatory response.
Tissue specificityExpressed in various tissues such as macrophages, platelets, neutrophils, fibroblasts and lung endothelium.
DomainThe N-terminal C2 domain associates with lipid membranes upon calcium binding. It modulates enzyme activity by presenting the active site to its substrate in response to elevations of cytosolic Ca(2+).
Post-translational modificationsActivated by phosphorylation at both Ser-505 and Ser-727.
Cellular localizationCytoplasm. Cytoplasmic vesicle. Translocates to membrane vesicles in a calcium-dependent fashion.
ICC/IF image of ab53105 stained MCF7 cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab53105, 5µg/ml) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h.Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.
References for Anti-Phospholipase A2 (phospho S505) antibody (ab53105)
This product has been referenced in:
Singh NK et al. Both Kdr and Flt1 play a vital role in hypoxia-induced Src-PLD1-PKC?-cPLA(2) activation and retinal neovascularization. Blood121:1911-23 (2013).
Read more (PubMed: 23319572) »
Estevez B et al. LIM kinase-1 selectively promotes glycoprotein Ib-IX-mediated TXA2 synthesis, platelet activation, and thrombosis. Blood121:4586-94 (2013).
Read more (PubMed: 23620575) »