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PIERCE 20421 現(xiàn)貨

更新時(shí)間:2011-08-26      點(diǎn)擊:1136

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產(chǎn)品名稱:Pierce(R) Protein A/G Agarose, 3 mL.
產(chǎn)品貨號(hào):PIERCE 20421
產(chǎn)品規(guī)格:3 ML
產(chǎn)品價(jià)格:3896
產(chǎn)品說明書地址:http://www.piercenet.com/

Includes:

  • Purification kits contain Protein A/G Spin Columns, binding buffer, elution buffer and neutralization buffer

Product Details:

Protein A/G is a genetically-engineered protein that combines the IgG binding domains of both Protein A and Protein G. The fusion protein is expressed in E. coli. Protein A/G contains four Fc binding domains from Protein A and two from Protein G, resulting in a final mass of 50,460 daltons (40 to 45kDa by SDS-PAGE). Protein A/G is not as pH-dependent as Protein A alone, but otherwise has the additive properties of Protein A and G.

Protein A/G binds to all human IgG subclasses, making it the ideal choice for purification of polyclonal or monoclonal IgG antibodies whose subclass identities have not been determined. In addition, it binds to IgA, IgE, IgM and (to a lesser extent) IgD. Protein A/G also binds well to all mouse IgG subclasses but does not bind mouse IgA, IgM or serum albumin. This makes Protein A/G an excellent tool for purification and detection of mouse monoclonal antibodies from IgG subclasses, without interference from IgA, IgM and murine serum albumin. Individual subclasses of mouse monoclonals are likely to have a stronger affinity to the chimeric Protein A/G than to either Protein A or Protein G.

Pierce Protein A/G Agarose is prepared using Thermo Scientific AminoLink Coupling Chemistry, which provides several advantages compared to traditional methods of ligand immobilization. AminoLink Immobilization results in conjugation between sugar monomers of the agarose beads and native lysine residues on the Protein A via simple amide bonds. Unlike typical cyanogen bromide (CNBr) immobilization, the AminoLink Method does not introduce any novel chemical groups that could cause undesired nonspecific binding and produces a stable, essentially irreversible bond. The result is a high-binding-capacity resin that retains functional immobilized Protein A/G through multiple rounds of antibody purification.

Pierce Protein A/G Agarose binds nearly all isotypes and mammalian species of IgG from serum, ascites fluid, cell culture supernantant and other antibody samples, thereby enabling effective antibody purification. Because the immobilized Protein A/G combines the immunoglobulin-binding domains of both Protein A and Protein G, the resin is effective for affinity purification of IgG antibodies from a broad range mammalian host species.

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