Anti-platelet-activating factor acetylhydrolase 2, 40kDa antibodies enable researchers to detect and measure the platelet-activating factor acetylhydrolase 2, 40kDa antigen in biological samples. This target is a reported synonym of the PAFAH2 gene, which encodes platelet activating factor acetylhydrolase 2. This protein is known to function in the metabolism of lipids, among other biological roles. The human version of platelet-activating factor acetylhydrolase 2, 40kDa has a canonical amino acid length of 392 residues and a protein mass of 44 kilodaltons. It is reported to be localized in the ER and cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include HSD-PLA2, platelet-activating factor acetylhydrolase 2, cytoplasmic, and PAF:lysophospholipid transacetylase.