Function | Hydrolyzes the ester bond of the acyl group attached at the sn-1 position of phosphatidylserines (phospholipase A1 activity) and 1-acyl-2-lysophosphatidylserines (lysophospholipase activity) in the pathway of phosphatidylserines acyl chain remodeling. Cleaves phosphatidylserines exposed on the outer leaflet of the plasma membrane of apoptotic cells producing 2-acyl-1-lysophosphatidylserines, which in turn enhance mast cell activation and histamine production. Has no activity toward other glycerophospholipids including phosphatidylcholines, phosphatidylethanolamines, phosphatidic acids or phosphatidylinositols, or glycerolipids such as triolein. Isoform 2: Hydrolyzes lyso-PS but not PS. |
Protein Name | Phospholipase A1 Member APhosphatidylserine-Specific Phospholipase A1Ps-Pla1 |
Database Links | Reactome: R-HSA-1482801 |
Cellular Localisation | Secreted |
Alternative Protein Names | Phospholipase A1 Member A proteinPhosphatidylserine-Specific Phospholipase A1 proteinPs-Pla1 proteinPLA1A proteinNMD proteinPSPLA1 protein |
Information sourced from Uniprot.org