Protein G, Recombinant, Streptococcus sp. (Biotin)

Lyophilized powder may be stored at 4 °C for short-term only. Stable for at least 6 months at -20 °C. Reconstitute with sterile ddH2O, aliquot and store at -20 °C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Under optimal conditions, 1mg protein G will bind approximately 5mg human IgG. Optimal binding of Protein G to antibodies occurs at pH 5.0 to 6.0 and can be eluted over a pH range of 2.5 to 3.0.