HRP consists of the basic isoenzyme having a molecular weight of 44 kDa. The Horseradish Peroxidase is purified by affinity chromatography, which results in an enzyme of high specific activity and purity. Calcium-dependent phospholipase A2, EC 3.1.1.4, Phosphatidylcholine 2-acylhydrolase, PLA2-10, Group V phospholipase A2, GV-PLA2, MGC46205, hVPLA(2), DKFZp686C2294, sPLA2-V, PLA2G5. Horseradish Peroxidase, HRP, EC 1.11.1.7.Natural Enzymes