Summary: Cat.No. : PTRH2-392H Product Overview : Recombinant Human PTRH2 (Q9Y3E5) (Gly63-Tyr179), fused with a polyhistidine tag at the N-terminus, was produced in E. coli. Source : E. coli Species : Human Tag : His Predicted N Terminal : His Form : Lyophilized from sterile 20mM Tris, 10% glycerol, pH 8.0.Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization.