beta 2 Microglobulin (B2M) (NM_004048) Human Recombinant Protein TP710178 USD 411.00 In Stock Recombinant protein of human beta-2-microglobulin (B2M), residues 21-119aa, secretory expressed with GP67 signal peptide, with C-terminal DDK tag, expressed in sf9, 20ug Tag C-DDK Expression Host Sf9