Summary: Cat.No.: PCSK9-312H Product Overview: Recombinant Human PCSK9 (NP_777596.2) (Met 1-Gln 692), fused with a C-terminal polyhistidine tag, was produced in Human Cell. Source: Human Cells Species: Human Tag: His Form: Lyophilized from sterile PBS, pH 7.4 Molecular Mass: The recombinant human PCSK9 consists of 662 amino acids and predicts a molecular mass of 72.6 kDa. As a result of glycosylation and proteolytic digestion, rhPCSK9 migrates as doublet with apparent molecular mass of 20 kDa and 62 kDa respectively in SDS-PAGE under reducing conditions.