Summary: Cat.No.: Il12b-8789R Product Overview: Recombinant Rat Il12b (G3V9Y5) (Met1-Ser335), fused with a polyhistidine tag at the C-terminus, was produced in Human Cells. Source: Human Cells Species: Rat Tag: His Predicted N Terminal: Met 23 Form: Lyophilized from sterile PBS, pH 7.4Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization.