Summary: Cat.No. : birA-339E Product Overview : Recombinant E.coli birA (P06709) (Met1-Lys321), fused with an N-terminal polyhistidine-tagged MBP tag, was produced in E. coli. Source : E. coli Species : E.coli Tag : His-MBP Predicted N Terminal : Met Form : Lyophilized from sterile 50mM Tris, 100mM NaCl, 10% Glycerol, pH 8.0. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization.