Summary: Cat.No. : VSIG4-423H Product Overview : Recombinant Human VSIG4 (O75144-1) (Met1-Pro283), fused with the Fc region of human IgG1 at the C-terminus, was produced in Human Cells. Source : Human Cells Species : Human Tag : Fc Predicted N Terminal : Arg 20 Form : Lyophilized from sterile PBS, pH 7.4.Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization.