The prokaryotic phospholipase A2 domain is predominantly found in bacterial and fungal phospholipases, as well as various hypothetical and putative proteins. It enables the liberation of fatty acids and lysophospholipid by hydrolysing the 2-ester bond of 1,2-diacyl-3-sn-phosphoglycerides. The domain adopts an alpha-helical secondary structure, consisting of five alpha-helices and two helical segments [1].

1: The crystal structure of prokaryotic phospholipase A2. Matoba Y, Katsube Y, Sugiyama M; J Biol Chem. 2002;277:20059-20069. PMID:11897785