Properties of salt-resistant lipase and lipoprotein lipase purified from human post-heparin plasma

Abstract

Lipoprotein lipase and salt-resistant lipase were isolated from human post-heparin plasma. The proteins of human post-heparin-plasma lipoprotein lipase and salt-resistant lipase were identified and demonstrated to be immunologically different. Significant differences between the two enzymes in their relative amino acid composition were demonstrated, which indicates that the two enzymes are different proteins. When analysed by sodium dodecyl sulphate/polyacrylamide gel electrophoresis, the enzymes seemed to have monomer molecular weights similar to that of lipoprptein lipase purified from bovine milk.