A 42-kDa monomeric protein from Staphylococcus aureus bacteria, protein A lacks cysteine residues and binds to the Fc portion of immunoglobulins. It is used extensively in affinity chromatography; ELISAs; and immunoblotting, -precipitation, and -histochemistry.
A protein from the bacterium Staphylococcus aureus that binds specifically to immunoglobulin G (i.e. antibody) molecules.
Surface-exposed protein of Staphylococcus aureus with LPXTG motif that binds the Fc portion of antibodies (Lecture: The Gram-Positive Cocci: Streptococcus and Staphylococcus, 3/7/02)
A constituent of stapholococcus A bacteria that binds the Fc region of particular antibody or immunoglobulin molecules; used extensively to identify and isolate these molecules.
a cell wall protein from Staphlococcus aureas with affinity for the Fc region of IgG
a membrane component of Staphylococcus aureus that binds to the Fc region of IgG and is thought to protect the bacteria from IgG antibodies by inhibiting their interactions with complement and Fc receptors
a surface protein of S aureus which binds IgG molecules by their Fc region
a surface protein of S aureus which binds immunoglobulin G molecules by the Fc region (Fig
Protein A is a 40-60 k D surface protein originally found in the cell wall of the bacteria Staphylococcus aureus. It has found use in biochemical research because of its ability to bind immunoglobulins. It binds proteins from many of mammalian species, most notably IgG’s.
