3.4.21.61 ? x * 87000, PC1, SDS-PAGE. x * 75000, proPC2, SDS-PAGE. x * 68000, mature PC2, SDS-PAGE 683932 3.4.21.61 monomer 1 * 65000, SDS-PAGE 686780 3.4.21.61 monomer 1 * 75979, purified PCSK9, gel filtration. 1* 45708, purified PCSK9DELTAC, gel filtration 709095 3.4.21.61 additional information the enzyme contains a signal peptide and a prodomain followed by a catalytic protease domain, a hinge-region and a C-terminal domain 732857