For what is Protein A from Staphylococcus aureus used in biochemistry?
['Staphylococcal protein A (SpA) binds Fcγ and VH3 clan Fab domains of human and animal immunoglobulin (Ig) with each of its five Ig binding domains (IgBDs),', 'Protein A from Staphylococcus aureus plays one key role as an immobilized affinity ligand for the purification of antibodies. ', 'The recombinant SpA is also widely used in biotechnology to purify polyclonal and monoclonal immunoglobulin G antibodies.', 'Staphylococcus aureus protein A (SpA) is the most popular affinity ligand for immunoglobulin G1 (IgG1).', 'Staphylococcal Protein A (SPA), a cell wall protein of Staphylococcus aureus, is in high demand because of its ability to bind immunoglobulins.', 'Protein A from the bacterium Staphylococcus aureus (SpA) has been widely used as an affinity ligand for purification of immunoglobulin G (IgG). ', 'Affinity chromatography with protein A from Staphylococcus aureus (SpA) is the most widespread and accepted methodology for antibody capture during the downstream process of antibody manufacturing', 'Affinity chromatography using protein A from Staphylococcus aureus as the ligand has been widely used for the isolation of immunoglobulin G (IgG) from various species.']
['Protein A from the bacterium Staphylococcus aureus (SpA) is used as an affinity ligand for purification of immunoglobulin G (IgG).']
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