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Protein G

Recombinant Protein G from Streptococcus Sp was expressed in E. coli using N-terminal His tag.


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$ 70


Immunoglobulin (Ig) binding protein, Protein G, is present on the surface of group C and G Streptococcal bacteria. Protein G is known to bind the Fab and Fc regions of the antibody in the host cell and suppresses host cell immune responses (1). Such cross-linking is found to prevent opsonophagocytosis and result in B-cell death in vitro (2). All four human IgG subclasses interact with protein G with high affinity (3). Overall, protein G can be used as an immunological reagent in a broad range of studies that involve detection of antibody-secreting cells (4).


Recombinant protein stored in 50mM sodium phosphate, pH 7.5, 300mM NaCl, 200mM imidazole, 1mM DTT, 10% glycerol.

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Cancer, Cell Cycle