Greater than 95.0% binding activity to human IgG.
The protein solution contains no additives.
Sterile Filtered clear colorless solution.
Greater than 98.0% as determined by RP-HPLC.
SPA should be stored at -20oC.
Immunoglobulin G-binding protein A, IgG-binding protein A, Staphylococcal protein A, SPA.