Protein G agarose (similar to Sepharose) can trap a variety of immunoglobulins to a solid phase for immunoprecipitation of affinity chromatography. Protein G binds a wider variety of immunoglobulins than Protein A. This is a recombinant version of the Streptococcal protein that lacks the albumin binding domain. Larger quantities are available at substantial savings. For additional details, please visit www.proteinmods.com. Product is shipped FedEx overnight on ice packs within continental US. The first item is $30, additional items are shipped at no additional shipping costs.