Summary: Cat.No. : TSPAN31-129H Product Overview : Recombinant Human TSPAN31 (Q12999) (Cys94-Lys173), fused with the Fc region of mouse IgG1 at the N-terminus, was produced in Human Cell. Source : Human Cell Species : Human Tag : Fc Predicted N Terminal : Asp Form : Lyophilized from sterile PBS, pH 7.4.Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization.