Recombinant  Protein A

Recombinant Protein A

Non-antibody column purification, no antibody contamination

Additional information
  1. Alias

Recombinant  protein A (referred to as recombinant Staphylococcus aureus protein A or rSPA) is expressed in recombinant E. coli and purified by HPLC.

  1. Source

Recombinant Staphylococcus aureus protein A was expressed in recombinant E. coli and purified by HPLC.

  1. Product features and advantages

Form: Lyophilized powder

Ingredients: The recombinant protein A aqueous solution is directly freeze-dried without any other additives.

Purity: (SDS-PAGE detection) >95%

Nucleic acid (UV detection): DNA, RNA cannot be detected

Triton content: No Triton pollution

Store: at 2℃~8℃

pH stable range: 1-13


1). Purification by non-antibody column, without any contamination of other antibodies such as IgG in the product.

2). SPA-25 is a product independently developed by the company. It has a wide range of pH tolerance, can tolerate 0.5 M NaOH and 0.5 M HCl treatment, does not degrade, and the antibody binding ability remains unchanged.

3). The product has a connecting group specially designed for antibody purification column, which can be directly used for the preparation of protein A column.

4). The company’s recombinant protein A products have the advantages of large-scale production, stable quality and high purity.


  1. Product use

Recombinant protein A can be coupled to a solid separation medium (such as agarose) for the purification of monoclonal antibodies or polyclonal antibodies. Recombinant protein A can be coupled with a variety of reporter molecules (fluorescent dyes, enzyme labels, biotin, colloidal gold, radioactive labels, etc.) without affecting its binding activity to antibodies. These coupled protein A derivatives can be used in Western-blot, ELISA, immunohistochemistry and other antibody detection.

Recombinant Protein A

Product No
Product name
Recombinant Protein A
100mg, 1g,10g,100g tube or bottle etc

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