Summary: Cat.No. : SMPDL3A-8598H Product Overview : Recombinant Human SMPDL3A (Q92484) (Met1-Tyr453), fused with a polyhistidine tag at the C-terminus, was produced in Human Cells. Source : Human Cells Species : Human Tag : His Predicted N Terminal : Leu 23 Form : Lyophilized from sterile PBS, pH 7.4Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization.